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Zhao S, Ma W, Wang W, Huang Y, Wang J, Wang S, Shu Z, He B, Zhao L. Reverse Atom Capture on Perovskite Surface Enabling Robust and Efficient Cathode for Protonic Ceramic Fuel Cells. Adv Mater 2024:e2405052. [PMID: 38652767 DOI: 10.1002/adma.202405052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Indexed: 04/25/2024]
Abstract
Protonic ceramic fuel cells (PCFCs) hold potential for sustainable energy conversion, yet their widespread application is hindered by the sluggish kinetics and inferior stability of cathode materials. Here, a facile and efficient reverse atom capture technique is developed to manipulate the surface chemistry of PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF) cathode for PCFCs. This method successfully captures segregated Ba and Sr cations on the PBSCF surface using W species, creating a (Ba/Sr)(Co/Fe/W)O3-δ (BSCFW)@PBSCF heterostructure. Benefiting from enhanced kinetics of proton-involved oxygen reduction reaction and strengthened chemical stability, the single cell using the optimized 2W-PBSCF cathode demonstrates an exceptional peak power density of 1.32 W cm-2 at 650 °C and maintains durable performance for 240 h. Theoretical calculations unveil that the BSCFW perovskite delivers lower oxygen vacancy formation energy, hydration energy, and proton transfer energy compared to the PBSCF perovskite. This protocol offers new insights into advanced atom capture techniques for sustainable energy infrastructures. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Sunce Zhao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Wenjia Ma
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Wenwen Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Yonglong Huang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Ji Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Sijiao Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Zhu Shu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Beibei He
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
- Prof. L. Zhao. Shenzhen Research Institute, China University of Geosciences, Shenzhen, 518000, China
| | - Ling Zhao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
- School of Marine Science and Engineering, Hainan University, Haikou, 570228, China
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Ye J, Yuan B, Peng W, Liang J, Han Q, Hu R. Highly Stable Mo-NiO@NiFe-Layered Double Hydroxide Heterojunction Anode Catalyst for Alkaline Electrolyzers with Porous Membrane. ACS Appl Mater Interfaces 2024. [PMID: 38652766 DOI: 10.1021/acsami.4c00974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Heterostructure catalysts are considered as promising candidates for promoting the oxygen evolution reaction (OER) process due to their strong electron coupling. However, the inevitable dissolution and detachment of the heterostructure catalysts are caused by the severe reconstruction, dramatically limiting their industrial application. Herein, the NiFe-layered double hydroxide (LDH) nanosheets attached on Mo-NiO microrods (Mo-NiO@NiFe LDH) by the preoxidation strategy of the core NiMoN layer are synthesized for ensuring the high catalytic performance and stability. Owing to the enhanced electron coupling and preoxidation process, the obtained Mo-NiO@NiFe LDH exhibits a superlow overpotential of 253 mV to achieve a practically relevant current density of 1000 mA cm-2 for OER with exceptional stability over 1200 h. Notably, the overall water splitting system based on Mo-NiO@NiFe LDH reveals remarkable stability, maintaining the catalytic activity at a current density of 1000 mA cm-2 for 140 h under industrial harsh conditions. Furthermore, the Mo-NiO@NiFe LDH demonstrates outstanding activity and long-term durability in a practical alkaline electrolyzer assembly with a porous membrane, even surpassing the performance of IrO2. This work provides a new sight for designing and synthesizing highly stable heterojunction electrocatalysts, further promoting and realizing the industrial electrocatalytic OER.
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Affiliation(s)
- Jianwei Ye
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
| | - Bin Yuan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P. R. China
| | - Weiliang Peng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
| | - Jinxia Liang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
| | - Qiying Han
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P. R. China
- Guangdong Jinsheng New Energy Co Ltd, Zhaoqing 526116, P. R. China
| | - Renzong Hu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P. R. China
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Chen X, Luo X, Zhang X, Wang H, Li Y, Ye L, Zheng J, Li H. Regulation of Electronic Structures of the Urchin-Like NiCoP/CoP Nanocatalysts for Fast Hydrogen Evolution. Chemistry 2024; 30:e202304266. [PMID: 38369590 DOI: 10.1002/chem.202304266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/07/2024] [Accepted: 02/16/2024] [Indexed: 02/20/2024]
Abstract
The exploration of stable, efficient, and low-cost catalysts toward ammonia borane hydrolysis is of vital significance for the practical implementation of this hydrogen production technology. Integrating interface engineering and nano-architecture engineering is a favorable strategy to elevate catalytic performance, as it can modify the electronic structure and provide sufficient active sites simultaneously. In this work, urchin-like NiCoP/CoP heterostructures are prepared via a three-step hydrothermal-oxidation-phosphorization synthesis route. It is demonstrated that the original Ni/Co molar ratio and the amount of phosphorus are crucial for adjusting the morphology, enhancing the exposed surface area, facilitating charge transfer, and modulating the adsorption and activation of H2O molecules. Consequently, the optimal Ni1Co2P heterostructure displays remarkable catalytic properties in the hydrolysis of ammonia borane with a turnover frequency (TOF) value of 30.3 molH2 ⋅ min-1 ⋅ molmetal -1, a low apparent activation energy of 25.89 kJ ⋅ mol-1, and good stability. Furthermore, by combining infrared spectroscopy and isotope kinetics experiments, a possible mechanism for the hydrolysis of ammonia borane was proposed.
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Affiliation(s)
- Xiaodong Chen
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
- Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Xiaoling Luo
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Xuefeng Zhang
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
- Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Huize Wang
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
- Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Yongcheng Li
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Lifang Ye
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Jiahua Zheng
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
| | - Hao Li
- School of chemistry and Materials Engineering, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
- Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University, No.46, Yanda Avenue, Huizhou, 516007, China
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Ren G, Tang T, Song S, Li Y, Gao J, Wang Y, Yao Z, Shen S, Zhang L, Guo Y, Yang Y. Achieving High-Rate and Stable Sodium-Ion Storage by Constructing Okra-Like NiS 2/FeS 2@Multichannel Carbon Nanofibers. ACS Appl Mater Interfaces 2024; 16:18991-19002. [PMID: 38588112 DOI: 10.1021/acsami.4c02306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Transition metal sulfides (TMSs) are considered as promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacities. However, the relatively low electrical conductivity, large volume variation, and easy aggregation/pulverization of active materials seriously hinder their practical application. Herein, okra-like NiS2/FeS2 particles encapsulated in multichannel N-doped carbon nanofibers (NiS2/FeS2@MCNFs) are fabricated by a coprecipitation, electrospinning, and carbonization/sulfurization strategy. The combined advantages arising from the hollow multichannel structure in carbon skeleton and heterogeneous NiS2/FeS2 particles with rich interfaces can provide facile ion/electron transfer paths, ensure boosted reaction kinetics, and help maintain the structural integrity, thereby resulting in a high reversible capacity (457 mA h g-1 at 1 A g-1), excellent rate performance (350 mA h g-1 at 5 A g-1), and outstanding long-term cycling stability (93.5% retention after 1100 cycles). This work provides a facile and efficient synthetic strategy to develop TMS-based heterostructured anode materials with high-rate and stable sodium storage properties.
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Affiliation(s)
- Gaoya Ren
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Tiantian Tang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shanshan Song
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yaxuan Li
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jingyi Gao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yuting Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhujun Yao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shenghui Shen
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Liqiang Zhang
- School of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yunna Guo
- School of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yefeng Yang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Institute of Wenzhou, Zhejiang University, Wenzhou 325006, China
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Yan B, Chen N, Xu C, Wu Y, Li L, Lee C, He N. Covalently Bonded Heterostructures with Mixed-Dimensional Carbons for Suppressing Mechanochemical Wear of Diamond under Heavy Loads. ACS Appl Mater Interfaces 2024; 16:19751-19763. [PMID: 38581368 DOI: 10.1021/acsami.4c00032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2024]
Abstract
Diamond is widely acknowledged as the hardest naturally occurring material. Nevertheless, when exposed to friction against ferrous metals, it is prone to graphitization or amorphization, which limits the utilization of its extremely high hardness and wear resistance. These issues have persisted for decades without an effective solution. Here, we report that a covalently bonded heterostructure with mixed-dimensional carbons as a high-performance solid lubricant could effectively reduce diamond surface friction and mechanochemical wear with excellent load capacity and durability. When subjected to dry friction and heavy loads (20-150 N), the heterostructure exhibited a notable improvement over pristine diamond with reduced friction coefficients and relative wear rates by 22-45 and 67-91%, respectively. Especially under a 20 N load, the relative wear rate was an order of magnitude lower than that of pristine diamond. Additionally, experiments and molecular dynamics simulations revealed that the heterostructure integrated the outstanding properties of diamond (three-dimensional (3D)), nanographite (3D), and graphene (two-dimensional (2D)), resulting in improved lubrication and antiwear performance that could not be achieved by the individual carbon materials. The findings in this work will be beneficial to overcome the ferrous metal forbidden zone of diamond and are expected to expand the applications of engineered diamond surfaces and graphite/graphene in tribology, mechanics, and electronic fields.
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Affiliation(s)
- Bo Yan
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Ni Chen
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Chang Xu
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Yang Wu
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Liang Li
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Changgu Lee
- SKKU Advanced Institute of Nanotechnology (SAINT), School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Ning He
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Hu Y, Han X, Hu S, Yu G, Chao T, Wu G, Qu Y, Chen C, Liu P, Zheng X, Yang Q, Hong X. Surface-Diffusion-Induced Amorphization of Pt Nanoparticles over Ru Oxide Boost Acidic Oxygen Evolution. Nano Lett 2024. [PMID: 38624236 DOI: 10.1021/acs.nanolett.4c01036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Phase transformation offers an alternative strategy for the synthesis of nanomaterials with unconventional phases, allowing us to further explore their unique properties and promising applications. Herein, we first observed the amorphization of Pt nanoparticles on the RuO2 surface by in situ scanning transmission electron microscopy. Density functional theory calculations demonstrate the low energy barrier and thermodynamic driving force for Pt atoms transferring from the Pt cluster to the RuO2 surface to form amorphous Pt. Remarkably, the as-synthesized amorphous Pt/RuO2 exhibits 14.2 times enhanced mass activity compared to commercial RuO2 catalysts for the oxygen evolution reaction (OER). Water electrolyzer with amorphous Pt/RuO2 achieves 1.0 A cm-2 at 1.70 V and remains stable at 200 mA cm-2 for over 80 h. The amorphous Pt layer not only optimized the *O binding but also enhanced the antioxidation ability of amorphous Pt/RuO2, thereby boosting the activity and stability for the OER.
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Affiliation(s)
- Yanmin Hu
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Xiao Han
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Shaojin Hu
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Ge Yu
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Tingting Chao
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Geng Wu
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Yunteng Qu
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Cai Chen
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Peigen Liu
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
| | - Xiao Zheng
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Qing Yang
- Department of Chemistry, Laboratory of Nanomaterials for Energy Conversion (LNEC), University of Science and Technology of China, Hefei 230026, P.R. China
| | - Xun Hong
- Center of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P.R. China
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Wang TJ, Sun LB, Ai X, Chen P, Chen Y, Wang X. Boosting Formate Electrooxidation by Heterostructured PtPd Alloy and Oxides Nanowires. Adv Mater 2024:e2403664. [PMID: 38625813 DOI: 10.1002/adma.202403664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/09/2024] [Indexed: 04/18/2024]
Abstract
Direct formate fuel cells (DFFCs) receive increasing attention as promising technologies for the future energy mix and environmental sustainability, as formate can be made from carbon dioxide utilization and is carbon neutral. Herein, heterostructured platinum-palladium alloy and oxides nanowires (PtPd-ox NWs) with abundant defect sites are synthesized through a facile self-template method and demonstrated high activity toward formate electrooxidation reaction (FOR). The electronic tuning arising from the heterojunction between alloy and oxides influence the work function of PtPd-ox NWs. The sample with optimal work function reveals the favorable adsorption behavior for intermediates and strong interaction in the d-p orbital hybridization between Pt site and oxygen in formate, favoring the FOR direct pathway with a low energy barrier. Besides the thermodynamic regulation, the heterostructure can also provide sufficient hydroxyl species to facilitate the formation of carbon dioxide due to the ability of combining absorbed hydrogen and carbon monoxide at adjacent active sites, which contributes to the improvement of FOR kinetics on PtPd-ox NWs. Thus, heterostructured PtPd-ox NWs achieve dual regulation of FOR thermodynamics and kinetics, exhibiting remarkable performance and demonstrating potential in practical systems.
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Affiliation(s)
- Tian-Jiao Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
- School of Chemical, Chemistry Engineering and Biotechnology, Nanyang Technological University, Singapore, 639798, Singapore
- Cambridge Centre for Advanced Research and Education in Singapore Ltd (Cambridge CARES), CREATE Tower, Singapore, 138602, Singapore
| | - Li-Bo Sun
- Cambridge Centre for Advanced Research and Education in Singapore Ltd (Cambridge CARES), CREATE Tower, Singapore, 138602, Singapore
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Xuan Ai
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Pei Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Yu Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Xin Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
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Chen M, Fan Q, Yu P, Chen K, Li P, Liang K. Engineering Ti 3C 2-MXene Surface Composition for Excellent Li + Storage Performance. Molecules 2024; 29:1731. [PMID: 38675552 DOI: 10.3390/molecules29081731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Exploiting novel materials with high specific capacities is crucial for the progress of advanced energy storage devices. Intentionally constructing functional heterostructures based on a variety of two-dimensional (2D) substances proves to be an extremely efficient method for capitalizing on the shared benefits of these materials. By elaborately designing the structure, a greatly escalated steadiness can be achieved throughout electrochemical cycles, along with boosted electron transfer kinetics. In this study, chemical vapor deposition (CVD) was utilized to alter the surface composition of multilayer Ti3C2Tx MXene, contributing to contriving various layered heterostructure materials through a precise adjustment of the reaction temperature. The optimal composite materials at a reaction temperature of 500 °C (defined as MX500), incorporating MXene as the conductive substrate, exhibited outstanding stability and high coulombic efficiency during electrochemical cycling. Meanwhile, the reactive sites are increased by using TiS2 and TiO2 at the heterogeneous interfaces, which sustains a specific capacity of 449 mAh g-1 after 200 cycles at a current density of 0.1 A g-1 and further demonstrates their exceptional electrochemical characteristics. Additionally, the noted pseudocapacitive properties, like MXene materials, further highlight the diverse capabilities of intuitive material design. This study illuminates the complex details of surface modification in multilayer MXene and offers a crucial understanding of the strategic creation of heterostructures, significantly impacting sophisticated electrochemical applications.
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Affiliation(s)
- Minghua Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Qi Fan
- Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Ping Yu
- School of Electronic and Information Engineering, Ningbo University of Technology, Ningbo 315211, China
| | - Ke Chen
- Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Qianwan Institute of CNITECH, Ningbo 315336, China
| | - Peng Li
- Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Qianwan Institute of CNITECH, Ningbo 315336, China
| | - Kun Liang
- Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications, Ningbo Key Laboratory of Special Energy Materials and Chemistry, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
- Qianwan Institute of CNITECH, Ningbo 315336, China
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9
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Guo D, Xu J, Liu G, Yu X. Core-Shell CoS 2@MoS 2 with Hollow Heterostructure as an Efficient Electrocatalyst for Boosting Oxygen Evolution Reaction. Molecules 2024; 29:1695. [PMID: 38675517 DOI: 10.3390/molecules29081695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 04/28/2024] Open
Abstract
It is imperative to develop an efficient catalyst to reduce the energy barrier of electrochemical water decomposition. In this study, a well-designed electrocatalyst featuring a core-shell structure was synthesized with cobalt sulfides as the core and molybdenum disulfide nanosheets as the shell. The core-shell structure can prevent the agglomeration of MoS2, expose more active sites, and facilitate electrolyte ion diffusion. A CoS2/MoS2 heterostructure is formed between CoS2 and MoS2 through the chemical interaction, and the surface chemistry is adjusted. Due to the morphological merits and the formation of the CoS2/MoS2 heterostructure, CoS2@MoS2 exhibits excellent electrocatalytic performance during the oxygen evolution reaction (OER) process in an alkaline electrolyte. To reach the current density of 10 mA cm-2, only 254 mV of overpotential is required for CoS2@MoS2, which is smaller than that of pristine CoS2 and MoS2. Meanwhile, the small Tafel slope (86.9 mV dec-1) and low charge transfer resistance (47 Ω) imply the fast dynamic mechanism of CoS2@MoS2. As further confirmed by cyclic voltammetry curves for 1000 cycles and the CA test for 10 h, CoS2@MoS2 shows exceptional catalytic stability. This work gives a guideline for constructing the core-shell heterostructure as an efficient catalyst for oxygen evolution reaction.
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Affiliation(s)
- Donglei Guo
- Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Jiaqi Xu
- Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Guilong Liu
- Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
| | - Xu Yu
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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10
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Roy R, Holec D, Michal L, Hemzal D, Sarkar S, Sandeep Kumar G, Nečas D, Dhankhar M, Kaushik P, Jénnifer Gómez I, Zajíčková L. Possible charge ordering and anomalous transport in graphene/graphene quantum dot heterostructure. J Phys Condens Matter 2024; 36:265601. [PMID: 38457842 DOI: 10.1088/1361-648x/ad31bf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 03/08/2024] [Indexed: 03/10/2024]
Abstract
Observations of superconductivity and charge density waves (CDW) in graphene have been elusive thus far due to weak electron-phonon coupling (EPC) interactions. Here, we report a unique observation of anomalous transport and multiple charge ordering phases at high temperatures (T1∼213K,T2∼325K) in a 0D-2D van der Waals (vdW) heterostructure comprising of single layer graphene (SLG) and functionalized (amine) graphene quantum dots (GQD). The presence of functionalized GQD contributed to charge transfer with shifting of the Dirac point ∼ 0.05 eV above the Fermi level (ab initio simulations) and carrier densityn∼-0.3×1012 cm-2confirming p-doping in SLG and two-fold increase in EPC interaction was achieved. Moreover, we elucidate the interplay between electron-electron and electron-phonon interactions to substantiate high temperature EPC driven charge ordering in the heterostructure through analyses of magnetotransport and weak anti-localization (WAL) framework. Our results provide impetus to investigate strongly correlated phenomena such as CDW and superconducting phase transitions in novel graphene based heterostructures.
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Affiliation(s)
- Rajarshi Roy
- Central European Institute of Technology, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | - David Holec
- Department of Materials Science, Montanuniversität Leoben, Franz-Josef-Strasse 18, A-8700 Leoben, Austria
| | - Lukáš Michal
- Central European Institute of Technology, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | - Dušan Hemzal
- Department of Condensed Matter Physics, Masaryk University, Kotlářská, 611 37 Brno, Czech Republic
| | - Saikat Sarkar
- Thin Film and Nanoscience Lab, Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Gundam Sandeep Kumar
- Department of Chemistry, KU Leuven, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - David Nečas
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic
| | - Meena Dhankhar
- National Centre for Nano Fabrication and Characterization, Oersteds Plads-Building 347, Kongens Lyngby 2800 DK, Denmark
| | - Preeti Kaushik
- Department of Condensed Matter Physics, Masaryk University, Kotlářská, 611 37 Brno, Czech Republic
| | - I Jénnifer Gómez
- Department of Condensed Matter Physics, Masaryk University, Kotlářská, 611 37 Brno, Czech Republic
- Centro Interdisciplinar de Química e Bioloxía (CICA), Universidade da Coruña, Rúa as Carballeiras, 15071 A Coruña, Spain
| | - Lenka Zajíčková
- Department of Condensed Matter Physics, Masaryk University, Kotlářská, 611 37 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic
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11
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Liu W, Shao R, Guo L, Man J, Zhang C, Li L, Wang H, Wang B, Guo L, Ma S, Zhang B, Diao H, Qin Y, Yan L. Precise Design of TiO 2@CoO x Heterostructure via Atomic Layer Deposition for Synergistic Sono-Chemodynamic Oncotherapy. Adv Sci (Weinh) 2024; 11:e2304046. [PMID: 38311581 PMCID: PMC11005734 DOI: 10.1002/advs.202304046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/21/2023] [Indexed: 02/06/2024]
Abstract
Sonodynamic therapy (SDT), a tumor treatment modality with high tissue penetration and low side effects, is able to selectively kill tumor cells by producing cytotoxic reactive oxygen species (ROS) with ultrasound-triggered sonosensitizers. N-type inorganic semiconductor TiO2 has low ROS quantum yields under ultrasound irradiation and inadequate anti-tumor activity. Herein, by using atomic layer deposition (ALD) to create a heterojunction between porous TiO2 and CoOx, the sonodynamic therapy efficiency of TiO2 can be improved. Compared to conventional techniques, the high controllability of ALD allows for the delicate loading of CoOx nanoparticles into TiO2 pores, resulting in the precise tuning of the interfaces and energy band structures and ultimately optimal SDT properties. In addition, CoOx exhibits a cascade of H2O2→O2→·O2 - in response to the tumor microenvironment, which not only mitigates hypoxia during the SDT process, but also contributes to the effect of chemodynamic therapy (CDT). Correspondingly, the synergistic CDT/SDT treatment is successful in inhibiting tumor growth. Thus, ALD provides new avenues for catalytic tumor therapy and other pharmaceutical applications.
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Affiliation(s)
- Wen Liu
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
- Key Laboratory of Cellular Physiology at Shanxi Medical UniversityMinistry of EducationTaiyuan030001P. R. China
| | - Runrun Shao
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Lingyun Guo
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
- Pharmacy CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Jianliang Man
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Chengwu Zhang
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Lihong Li
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Haojiang Wang
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Bin Wang
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Lixia Guo
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Sufang Ma
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
| | - Bin Zhang
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan030001P. R. China
| | - Haipeng Diao
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
- Key Laboratory of Cellular Physiology at Shanxi Medical UniversityMinistry of EducationTaiyuan030001P. R. China
| | - Yong Qin
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan030001P. R. China
| | - Lili Yan
- Basic Medical CollegeShanxi Medical UniversityTaiyuan030001P. R. China
- Key Laboratory of Cellular Physiology at Shanxi Medical UniversityMinistry of EducationTaiyuan030001P. R. China
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12
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Ding Y, Zhang L, Gao X, Wei M, Liu Q, Li Y, Li Z, Cheng L, Wu M. Construction of Sugar-Gourd-Shaped Carbon Nanofibers Embedded with Heterostructured Zinc-Cobalt Selenide Nanocages for Superior Potassium-Ion Storage. Small 2024; 20:e2307095. [PMID: 38009720 DOI: 10.1002/smll.202307095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/16/2023] [Indexed: 11/29/2023]
Abstract
Transition metal selenides are considered as promising anode materials for potassium-ion batteries (PIBs) due to their high theoretical capacities. However, their applications are limited by low conductivity and large volume expansion. Herein, sugar-gourd-shaped carbon nanofibers embedded with heterostructured ZnCo-Se nanocages are prepared via a facile template-engaged method combined with electrospinning and selenization process. In this hierarchical ZnCo-Se@NC/CNF, abundant phase boundaries of CoSe2/ZnSe heterostructure can promote interfacial electron transfer and chemical reactivity. The interior porous ZnCo-Se@NC nanocage structure relieves volume expansion and maintains structural integrity during K+ intercalation and deintercalation. The exterior spinning carbon nanofibers connect the granular nanocages in series, which prevents the agglomeration, shortens the electron transport distance and enhances the reaction kinetics. As a self-supporting anode material, ZnCo-Se@NC/CNF delivers a high capacity (362 mA h g-1 at 0.1 A g-1 after 100 cycles) with long-term stability (95.9% capacity retention after 1000 cycles) and shows superior reaction kinetics with high-rate K-storage. Energy level analysis and DFT calculations illustrate heterostructure facilitates the adsorption of K+ and interfacial electron transfer. The K+ storage mechanism is revealed by ex situ XRD and EIS analyses. This work opens a novel avenue in designing high-performance heterostructured anode materials with ingenious structure for PIBs.
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Affiliation(s)
- Yinxuan Ding
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai, 200444, P. R. China
| | - Long Zhang
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai, 200444, P. R. China
| | - Xinglong Gao
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai, 200444, P. R. China
| | - Mingzhi Wei
- School of Material Science and Engineering, Qilu University of Technology, Jinan, 250353, P. R. China
| | - Qu Liu
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai, 200444, P. R. China
| | - Yunbiao Li
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai, 200444, P. R. China
| | - Zhen Li
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai, 200444, P. R. China
| | - Lingli Cheng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 201800, P. R. China
| | - Minghong Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 201800, P. R. China
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13
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Xiao Z, Gao L, Li S. Engineering Heterostructured Fe-Co-P Arrays for Robust Sodium Storage. Materials (Basel) 2024; 17:1616. [PMID: 38612131 PMCID: PMC11013002 DOI: 10.3390/ma17071616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024]
Abstract
Transition metal phosphides attract extensive concerns thanks to their high theoretical capacity in sodium ion batteries (SIBs). Nevertheless, the substantial volume fluctuation of metal phosphides during cycling leads to severe capacity decay, which largely hinders their large-scale deployment. In this regard, heterostructured Fe-Co-P (FeP/Co2P) arrays are firstly constructed in this work for SIBs. The novel self-supported construction without insulated binders favors fast charge migration and Na+ ion diffusion. In addition, the special heterostructure with abundant heterointerfaces could considerably mitigate the volume change during (de)sodiation and provide increased active sites for Na+ ions. Density functional theoretical (DFT) calculations confirm the built-in electric field in the heterointerfaces, which greatly hastens charge transfer and Na+ ion transportation, thereafter bringing about enhanced electrochemical performance. Most importantly, the FeP/Co2P heterostructure discloses higher electrical conductivity than that of bare FeP and Co2P based on the theoretical calculations. As anticipated, the heterostructured Fe-Co-P arrays demonstrate superior performance to that of Fe-P or Co-P anode, delivering high reversible capacities of 634 mAh g-1 at 0.2 A g-1 and 239 mAh g-1 at 1 A g-1 after 300 cycles.
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Affiliation(s)
- Zidi Xiao
- Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, China;
| | - Lin Gao
- Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, China;
- Hubei Key Laboratory of Energy Storage and Power Battery, School of Mathematics, Physics and Optoelectronic Engineering, Hubei University of Automotive Technology, Shiyan 442002, China
| | - Shaohui Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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14
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Yuan Y, Ren J, Xue H, Li J, Tang F, Guo X, Lu X. Electronic Properties of CrB/Co 2CO 2 Superlattices by Multiple Descriptor-Based Machine Learning Combined with First-Principles. Small Methods 2024:e2301415. [PMID: 38507722 DOI: 10.1002/smtd.202301415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 03/03/2024] [Indexed: 03/22/2024]
Abstract
In recent times, newly unveiled 2D materials exhibiting exceptional characteristics, such as MBenes and MXenes, have gained widespread application across diverse domains, encompassing electronic devices, catalysis, energy storage, sensors, and various others. Nonetheless, numerous technical bottlenecks persist in the development of high-performance, structurally flexible, and adjustable electronic device materials. Research investigations have demonstrated that 2D van der Waals superlattices (vdW SLs) structures comprising materials exhibit exceptional electrical, mechanical, and optical properties. In this work, the advantages of both materials are combined and compose the vdW SLs structure of MBenes and MXenes, thus obtaining materials with excellent electronic properties. Furthermore, it integrates machine learning (ML) with first-principles methods to forecast the electrical properties of MBene/MXene superlattice materials. Initially, various configurations of MBene/MXene superlattice materials are explored, revealing that distinct stacking methods exert significant influence on the electronic structure of MBene/MXene materials. Specifically, the BABA-type stacking of CrB (layer A) and Co2CO2 MXene (layer B) is most stable configureation. Subsequently, multiple descriptors of the structure are constructed to predict the density of states of vdW SLs through the employment of ML techniques. The best model achieves a mean absolute error (MAE) as low as 0.147 eV.
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Affiliation(s)
- Yuanyuan Yuan
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Junqiang Ren
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Hongtao Xue
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Junchen Li
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Fuling Tang
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Xin Guo
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
| | - Xuefeng Lu
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, P. R. China
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15
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Cheng S, Wu W, Li L, Su Y, Jin B, Li Y, Yu Z, Gu R. Synthesis of P-(NiCo)CO 3 /TiO 2 /Ti Self-Supported Electrode with High Catalytic Activity and Stability for Hydrogen Evolution. Small Methods 2024:e2301771. [PMID: 38501826 DOI: 10.1002/smtd.202301771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/24/2024] [Indexed: 03/20/2024]
Abstract
Hydrogen is considered an ideal clean energy due to its high mass-energy density, and only water is generated after combustion. Water electrolysis is a sustainable method of obtaining a usable amount of pure hydrogen among the various hydrogen production methods. However, its development is still limited by applying expensive noble metal catalysts. Here, the dissolution-recrystallization process of TiO2 nanotube arrays in water with the hydrothermal reaction of a typical nickel-cobalt hydroxide synthesis process followed by phosphating to prepare a self-supported electrode with (NiCo)CO3 /TiO2 heterostructure named P-(NiCo)CO3 /TiO2 /Ti electrode is combined. The electrode exhibits an ultra-low overpotential of 31 mV at 10 mA cm-2 with a Tafel slope of 46.2 mV dec-1 in 1 m KOH and maintained its stability after running for 500 h in 1 m KOH. The excellent catalytic activity can be attributed to the structure of nanotube arrays with high specific surface area, superhydrophilicity, and super aerophobicity on the electrode surface. In addition, the uniform (NiCo)CO3 /TiO2 heterostructure also accelerates the electron transfer on the electrode surface. Finally, DFT calculations demonstrate that phosphating also improves the ΔGH* and ΔGH2O of the electrode. The synthesis strategy also promotes the exploration of catalysts for other necessary electrocatalytic fields.
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Affiliation(s)
- Shaoan Cheng
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Wei Wu
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Longxin Li
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yuqing Su
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Beichen Jin
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yangxi Li
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zhen Yu
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Ruonan Gu
- State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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16
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Wang X, Yu X, He P, Qin F, Yao Y, Ren L. Application of Amorphous-Crystalline Coupling Materials in Electrocatalysis. Chemphyschem 2024; 25:e202300761. [PMID: 38323329 DOI: 10.1002/cphc.202300761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/08/2024]
Abstract
Interface engineering has proven to be a highly efficient strategy for modulating the physicochemical properties of electrocatalysts and further enhancing their electrochemical performance in related energy applications. In this context, the newly proposed crystalline-amorphous (c-a) heterostructures with unusual atomic arrangements at interfaces show strong competitiveness. Nonetheless, few efforts have been made to reveal and summarize the structure-activity relationship at the two-phase interface and the corresponding electrocatalytic mechanism. This concept is devoted to comprehensively discussing the fundamental characteristics of crystalline-amorphous electrocatalysts and their application in the field of energy conversion with typical examples. In addition, the development prospects and opportunities of crystalline-amorphous heterostructure are summarized to provide potential development directions for other types of clean energy development.
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Affiliation(s)
- Xinyu Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189
| | - Xu Yu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189
| | - Pinyi He
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189
| | - Fu Qin
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189
| | - Yongkang Yao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189
| | - Lili Ren
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189
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17
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Jeong S, Kim U, Lee S, Zhang Y, Son E, Choi KJ, Han YK, Baik JM, Park H. Superaerophobic/Superhydrophilic Multidimensional Electrode System for High-Current-Density Water Electrolysis. ACS Nano 2024; 18:7558-7569. [PMID: 38420914 DOI: 10.1021/acsnano.3c12533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Water electrolysis is emerging as a promising renewable-energy technology for the green production of hydrogen, which is a representative and reliable clean energy source. From economical and industrial perspectives, the development of earth-abundant non-noble metal-based and bifunctional catalysts, which can simultaneously exhibit high catalytic activities and stabilities for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), is critical; however, to date, these types of catalysts have not been constructed, particularly, for high-current-density water electrolysis at the industrial level. This study developed a heterostructured zero-dimensional (0D)-one-dimensional (1D) PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF)-Ni3S2 as a self-supported catalytic electrode via interface and morphology engineering. This unique heterodimensional nanostructure of the PBSCF-Ni3S2 system demonstrates superaerophobic/superhydrophilic features and maximizes the exposure of the highly active heterointerface, endowing the PBSCF-Ni3S2 electrode with outstanding electrocatalytic performances in both HER and OER and exceptional operational stability during the overall water electrolysis at high current densities (500 h at 500 mA cm-2). This study provides important insights into the development of catalytic electrodes for efficient and stable large-scale hydrogen production systems.
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Affiliation(s)
- Seulgi Jeong
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Ungsoo Kim
- Department of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
| | - Sangjin Lee
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Yihan Zhang
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Eunbin Son
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Kyoung-Jin Choi
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Jeong Min Baik
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- SKKU Institute of Energy Science and Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyesung Park
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Integrative Energy Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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18
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Ren K, Liu JZ, Palummo M, Sun M. Editorial: Theoretical study of two-dimensional materials for photocatalysis and photovoltaics. Front Chem 2024; 12:1387236. [PMID: 38510812 PMCID: PMC10951059 DOI: 10.3389/fchem.2024.1387236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/22/2024] Open
Affiliation(s)
- Kai Ren
- School of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China
| | - Jefferson Zhe Liu
- Department of Mechanical Engineering, The University of Melbourne, Parkville, VIC, Australia
| | - Maurizia Palummo
- Dipartimento di Fisica and INFN, Università di Roma ‟Tor Vergata”, Roma, Italy
| | - Minglei Sun
- Department of Physics and NANOlab Center of Excellence, University of Antwerp, Antwerp, Belgium
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19
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An H, Mu X, Tan G, Su P, Liu L, Song N, Bai S, Yan CH, Tang Y. A Coordination-Derived Cerium-Based Amorphous-Crystalline Heterostructure with High Electrocatalytic Oxygen Evolution Activity. Small 2024:e2311505. [PMID: 38433398 DOI: 10.1002/smll.202311505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/23/2024] [Indexed: 03/05/2024]
Abstract
The rational design of heterogeneous catalysts is crucial for achieving optimal physicochemical properties and high electrochemical activity. However, the development of new amorphous-crystalline heterostructures is significantly more challenging than that of the existing crystalline-crystalline heterostructures. To overcome these issues, a coordination-assisted strategy that can help fabricate an amorphous NiO/crystalline NiCeOx (a-NiO/c-NiCeOx ) heterostructure is reported herein. The coordination geometry of the organic ligands plays a pivotal role in permitting the formation of coordination polymers with high Ni contents. This consequently provides an opportunity for enabling the supersaturation of Ni in the NiCeOx structure during annealing, leading to the endogenous spillover of Ni from the depths of NiCeOx to its surface. The resulting heterostructure, featuring strongly coupled amorphous NiO and crystalline NiCeOx , exhibits harmonious interactions in addition to low overpotentials and high catalytic stability in the oxygen evolution reaction (OER). Theoretical calculations prove that the amorphous-crystalline interfaces facilitate charge transfer, which plays a critical role in regulating the local electron density of the Ni sites, thereby promoting the adsorption of oxygen-based intermediates on the Ni sites and lowering the dissociation-related energy barriers. Overall, this study underscores the potential of coordinating different metal ions at the molecular level to advance amorphous-crystalline heterostructure design.
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Affiliation(s)
- Haiyan An
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xijiao Mu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Guoying Tan
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Pingru Su
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Liangliang Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Nan Song
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Shiqiang Bai
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Chun-Hua Yan
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yu Tang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
- State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou, 014030, P. R. China
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20
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Cao JM, Ma MY, Liu HH, Yang JL, Liu Y, Zhang KY, Butt FA, Gu ZY, Li K, Wu XL. Interfacial-Confined Isochronous Conversion to Biphasic Selenide Heterostructure with Enhanced Adsorption Behaviors for Robust High-Rate Na-Ion Storage. Small 2024; 20:e2311024. [PMID: 38239090 DOI: 10.1002/smll.202311024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/29/2023] [Indexed: 03/16/2024]
Abstract
Sodium-ion batteries (SIBs) have gradually become one of the most promising energy storage techniques in the current era of post-lithium-ion batteries. For anodes, transitional metal selenides (TMSe) based materials are welcomed choices , owing to relatively higher specific capacities and enriched redox active sites. Nevertheless, current bottlenecks are blamed for their poor intrinsic electronic conductivities, and uncontrollable volume expansion during redox reactions. Given that, an interfacial-confined isochronous conversion strategy is proposed, to prepare orthorhombic/cubic biphasic TMSe heterostructure, namely CuSe/Cu3 VSe4 , through using MXene as the precursor, followed by Cu/Se dual anchorage. As-designed biphasic TMSe heterostructure endows unique hierarchical structure, which contains adequate insertion sites and diffusion spacing for Na ions, besides, the surficial pseudocapacitive storage behaviors can be also proceeded like 2D MXene. By further investigation on electronic structure, the theoretical calculations indicate that biphasic CuSe/Cu3 VSe4 anode exhibits well-enhanced properties, with smaller bandgap and thus greatly improves intrinsic poor conductivities. In addition, the dual redox centers can enhance the electrochemical Na ions storage abilities. As a result, the as-designed biphasic TMSe anode can deliver a reversible specific capacity of 576.8 mAh g-1 at 0.1 A g-1 , favorable Na affinity, and reduced diffusion barriers. This work discloses a synchronous solution toward demerits in conductivities and lifespan, which is inspiring for TMSe-based anode development in SIBs systems.
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Affiliation(s)
- Jun-Ming Cao
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Ming-Yang Ma
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Han-Hao Liu
- Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Jia-Lin Yang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Yue Liu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Kai-Yang Zhang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Faaz A Butt
- Materials Engineering Department, NED University of Engineering and Technology, Karachi, 75300, Pakistan
| | - Zhen-Yi Gu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Kai Li
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Xing-Long Wu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
- Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
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21
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Wu X, Li X, Lv J, Lv X, Wu A, Qi Z, Wu HB. Pulsed Electrolysis Promotes CO 2 Reduction to Ethanol on Heterostructured Cu 2O/Ag Catalysts. Small 2024; 20:e2307637. [PMID: 37946399 DOI: 10.1002/smll.202307637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/17/2023] [Indexed: 11/12/2023]
Abstract
The electrochemical conversion of carbon dioxide (CO2) into ethanol with high added value has attracted increasing attention. Here, an efficient catalyst with abundant Cu2O/Ag interfaces for ethanol production under pulsed CO2 electrolysis is reported, which is composed of Cu2O hollow nanospheres loaded with Ag nanoparticles (named as se-Cu2O/Ag). The CO2-to-ethanol Faradaic efficiency is prominently improved to 46.3% at a partial current density up to 417 mA cm-2 under pulsed electrolysis conditions in a neutral flow cell, notably outperforming conventional Cu catalysts during static electrolysis. In situ spectroscopy reveals the stabilized Cu+ species of se-Cu2O/Ag during pulsed electrolysis and the enhanced adsorbed CO intermediate (*CO)coverage on the heterostructured catalyst. Density functional theory (DFT) calculations further confirm that the Cu2O/Ag heterostructure stabilizes the *CO intermediate and promotes the coupling of *CO and adsorbed CH intermediate (*CH). Meanwhile, the stable Cu+ species under pulsed electrolysis favor the hydrogenation of adsorbed HCCOH intermediate (*HCCOH) to adsorbed HCCHOH intermediate (*HCCHOH) on the pathway to ethanol. The synergistic effect between the enhanced generation of *CO on Cu2O/Ag and regenerated Cu+ species under pulsed electrolysis steers the reaction pathway toward ethanol. This work provides some insights into selective ethanol production from CO2 electroreduction via combined catalyst design and non-steady state electrolysis.
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Affiliation(s)
- Xiuju Wu
- Institute for Composites Science Innovation (InCSI), State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xiaotong Li
- Institute for Composites Science Innovation (InCSI), State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jiabao Lv
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Xiangzhou Lv
- Institute for Composites Science Innovation (InCSI), State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Angjian Wu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Zhifu Qi
- Zhejiang Baima Lake Laboratory Co., Ltd, Hangzhou, Zhejiang, 311121, China
| | - Hao Bin Wu
- Institute for Composites Science Innovation (InCSI), State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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22
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Zhang Y, Zhang D, Gao B, Xu Q. 2D Heterostructure of CoCl 2 /Co 3 O 4 Built for Strong Enhanced Magnetism. Small 2024; 20:e2305641. [PMID: 37914667 DOI: 10.1002/smll.202305641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/18/2023] [Indexed: 11/03/2023]
Abstract
As a remarkable structure, 2D magnetic heterojunctions have attracted researchers' attention owing to their controlled manipulation in the electronic device. However, successful fabrication as well as modulation of their structure and compound remain challenging. Herein, a novel method is designed to obtain a CoCl2 /Co3 O4 heterojunction on Si/SiO2 substrate with the assistance of supercritical CO2 (SC CO2 ), and the as-fabricated sample has significantly increased coercivity and saturation magnetization, which is 11 times higher than pure Co3 O4 . Further, it can be found that the CO2 pressure has the decisive effect on the saturation magnetization of the sample. Therefore, it suggests that the tunable electronic-magnetic device can be anticipated to be obtained in the future.
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Affiliation(s)
- Yunxiao Zhang
- College of Materials Science & Engineering, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Di Zhang
- College of Materials Science & Engineering, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Bo Gao
- College of Materials Science & Engineering, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Qun Xu
- College of Materials Science & Engineering, Zhengzhou University, Zhengzhou, 450052, P. R. China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, P. R. China
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23
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Dang Van C, Garain S, Ager JW, Kim M, Lee MH. Heterostructure of Fe-Doped CoMoO x/CoMoO x as an Efficient Electrocatalyst for Oxygen Evolution Reaction. ACS Appl Mater Interfaces 2024; 16:9989-9998. [PMID: 38358461 DOI: 10.1021/acsami.3c14929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Oxygen evolution reaction (OER) plays a crucial role as a counter half-reaction for both electrochemical hydrogen production through water splitting and the generation of valuable carbon compounds via CO2 reduction. To overcome the sluggish kinetics of the OER, significant efforts have been devoted to developing cost-effective, sustainable, and efficient electrocatalysts, with transition-metal-based catalysts emerging as promising candidates. Herein, we successfully synthesized a core-shell type nanostructure of Fe-doped CoMoOx/CoMoOx (CMFO), which exhibits excellent electrocatalytic properties for OER. The presence of an amorphous layer of Fe-doped CoMoOx with abundant oxygen vacancies, along with the stability of a key OER intermediate, *O, contributes to the enhanced activity of CMFO catalyst compared to pristine CoMoOx (CMO). The optimized catalyst of CMFO-550 achieved much lower overpotential and Tafel slope and also exhibited better remarkable long-term stability for over 90 h compared to CMO-550. These findings highlight the potential of CMFO-550 as a cost-effective and highly efficient electrocatalyst for the OER. The successful development of this core-shell nanostructure opens up a new opportunity for the design and synthesis of advanced electrocatalysts for the OER, with implications for various applications in energy conversion and storage.
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Affiliation(s)
- Cu Dang Van
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi 17104, Korea
| | - Samiran Garain
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi 17104, Korea
| | - Joel W Ager
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Materials Sciences Division and Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Minho Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi 17104, Korea
| | - Min Hyung Lee
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi 17104, Korea
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24
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Huang KW, Sivakumar C, Wu CH, Lee CW, Lee WE, Tsai FY, Ho MS. Highly Efficient Room Temperature NO 2 Sensor Using Two-Phase TiO x Heterogeneous Nanoparticles. ACS Appl Mater Interfaces 2024; 16:10485-10495. [PMID: 38367282 DOI: 10.1021/acsami.3c15770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2024]
Abstract
In this study, we successfully synthesized two-phase titanium oxide (TiOx) heterogeneous nanoparticles (NPs) using an advanced sol-gel method, a significant stride in developing efficient, room temperature (RT) NO2 gas sensors. The prepared two-phase TiOx heterogeneous NPs exhibited exceptional sensitivity to low concentrations of NO2 gas at RT. The heightened gas response was attributed to a significant presence of oxygen vacancies, creating intermediate states within the two-phase heterostructures and thus narrowing the band gap. This facilitated electron transport from the valence band (VB) to the conduction band (CB), resulting in increased current at RT. The XPS analysis confirmed a substantial amount of chemisorbed oxygen O2(ads)- within the two-phase heterostructures, providing more chemisorption sites for nitrogen dioxide gas. This increase in chemisorption sites significantly improved the gas response. Furthermore, the introduction of zinc into the TiOx NPs reduced their band gap, enhancing the background resistance signal-to-noise ratio and increasing the response while maintaining remarkable stability. In summary, our work introduces a promising RT NO2 sensor based on two-phase TiOx heterogeneous NPs, holding great potential for applications in environmental monitoring and gas sensing technology. In future work, we aim to delve deeper into the capabilities of the sensor, exploring broader applications and refining its design for enhanced practicality in environmental monitoring.
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Affiliation(s)
- Kuan-Wen Huang
- Department of Physics, National Chung Hsing University, Taichung 402, Taiwan
| | | | - Chiu-Hsien Wu
- Department of Physics, National Chung Hsing University, Taichung 402, Taiwan
- Institute of Nanoscience, National Chung Hsing University, Taichung 402, Taiwan
| | - Chih-Wei Lee
- Brightek Optoelectronic Co., LTD, Taoyuan City 330, Taiwan
| | - Wei-En Lee
- Brightek Optoelectronic Co., LTD, Taoyuan City 330, Taiwan
| | - Fu-Yu Tsai
- Brightek Optoelectronic Co., LTD, Taoyuan City 330, Taiwan
| | - Mon-Shu Ho
- Department of Physics, National Chung Hsing University, Taichung 402, Taiwan
- Institute of Nanoscience, National Chung Hsing University, Taichung 402, Taiwan
- Innovation and Development Center of Sustainable Agriculture (IDSCA), Taichung 402, Taiwan
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25
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Debnath S, Meyyappan M, Giri PK. Printed MoSe 2/GaAs Photodetector Enabling Ultrafast and Broadband Photodetection up to 1.5 μm. ACS Appl Mater Interfaces 2024; 16:9039-9050. [PMID: 38324453 DOI: 10.1021/acsami.3c17477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The development of high-performance and low-cost photodetectors (PDs) capable of detecting a broad range of wavelengths, from ultraviolet (UV) to near-infrared (NIR), is crucial for applications in sensing, imaging, and communication systems. This work presents a novel approach for printing a broadband PD based on a heterostructure of two-dimensional (2D) molybdenum diselenide (MoSe2) and gallium arsenide (GaAs). The fabrication process involves a precise technique to print MoSe2 nanoflower (NF) ink onto a prepatterned GaAs substrate. The resulting heterostructure exhibits unique properties, leveraging the exceptional electronic and optical characteristics of both GaAs and 2D MoSe2. The fabricated PD achieves an astounding on-off ratio of ∼105 at 5 V bias while demonstrating an exceptional on-off ratio of ∼104 at 0 V. The depletion region between GaAs and MoSe2 facilitates efficient charge generation and separation and collection of photogenerated carriers. This significantly improves the performance of the PD, resulting in a notably high responsivity across the spectrum. The peak responsivity of the device is 5.25 A/W at 5 V bias under 808 nm laser excitation, which is more than an order of magnitude higher than that of any commercial NIR PDs. Furthermore, the device demonstrates an exceptional responsivity of 0.36 A/W under an external bias of 0 V. The printing technology used here offers several advantages including simplicity, scalability, and compatibility with large-scale production. Additionally, it enables precise control over the placement and integration of the MoSe2 NF onto the GaAs substrate, ensuring uniformity and reliability in device performance. The exceptional responsivity across a broad spectral range (360-1550 nm) and the success of the printing technique make our MoSe2/GaAs heterostructure PD promising for future low-cost and efficient optoelectronic devices.
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Affiliation(s)
- Subhankar Debnath
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - M Meyyappan
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - P K Giri
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
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26
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Gao Y, Zhou W, Wang Y, Gao Y, Han J, Kong D, Lu G. Ag 2S-Decorated One-Dimensional CdS Nanorods for Rapid Detection and Effective Discrimination of n-Butanol. Nanomaterials (Basel) 2024; 14:394. [PMID: 38470725 PMCID: PMC10934644 DOI: 10.3390/nano14050394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/11/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024]
Abstract
N-butanol (C4H9OH) is a volatile organic compound (VOC) that is susceptible to industrial explosions. It has become imperative to develop n-butanol sensors with high selectivity and fast response and recovery kinetics. CdS/Ag2S composite nanomaterials were designed and prepared by the solvothermal method. The incorporation of Ag2S engendered a notable augmentation in specific surface area and a consequential narrow band gap. The CdS/Ag2S-based sensor with 3% molar ratio of Ag2S, operating at 200 °C, demonstrated a remarkably elevated response (S = Ra/Rg = 24.5) when exposed to 100 ppm n-butanol, surpassing the pristine CdS by a factor of approximately four. Furthermore, this sensor exhibited notably shortened response and recovery times, at a mere 4 s and 1 s, respectively. These improvements were ascribed to the one-dimensional single-crystal nanorod structure of CdS, which provided an effective path for expedited electron transport along its axial dimension. Additionally, the electron and chemical sensitization effects resulting from the modification with precious metal sulfides Ag2S were the primary reasons for enhancing the sensor response. This work can contribute to mitigating the safety risks associated with the use of n-butanol in industrial processes.
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Affiliation(s)
| | | | | | - Yuan Gao
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China; (Y.G.); (W.Z.); (Y.W.); (J.H.); (D.K.); (G.L.)
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27
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Sasaki M, Akamatsu T, Tomioka K, Motohisa J. Size control of InP nanowires by in situannealing and its application to the formation of InAsP quantum dots. Nanotechnology 2024; 35:195604. [PMID: 38306695 DOI: 10.1088/1361-6528/ad2570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
We carried outin situannealing of InP nanowires (NWs) in a metal-organic vapor phase epitaxial (MOVPE) growth reactor to control and reduce the tip size of InP NWs. InP NWs were grown by selective-area (SA) MOVPE on partially masked (111)A InP substrates, and annealing was successively applied in tertiarybutylphosphine (TBP) ambient. Initially, the InP NWs had a hexagonal cross-section with{112¯}facets vertical to the substrates; they became tapered, and the edges were rounded by annealing. By appropriately selecting the annealing temperature and initial NW diameter, the tip size of the NW was reduced and NWs with a tip size of 20 nm were successfully formed. Subsequently, a thin InAsP layer was grown on the annealed NWs and their photoluminescence was investigated at low temperatures. The characterization results indicated the formation of InAsP quantum dots (QDs) emitting in the telecom band. Our approach is useful for reducing the size of the NWs and for the controlled formation of InAsP QDs embedded in InP NWs in photonic devices compatible with telecom bands.
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Affiliation(s)
- Masahiro Sasaki
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics, Hokkaido University, North 14, West 9, Sapporo 060-0814, Japan
| | - Tomoya Akamatsu
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics, Hokkaido University, North 14, West 9, Sapporo 060-0814, Japan
| | - Katsuhiro Tomioka
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics, Hokkaido University, North 14, West 9, Sapporo 060-0814, Japan
| | - Junichi Motohisa
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics, Hokkaido University, North 14, West 9, Sapporo 060-0814, Japan
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28
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Deng Y, Liu S, Ma X, Guo S, Zhai B, Zhang Z, Li M, Yu Y, Hu W, Yang H, Kapitonov Y, Han J, Wu J, Li Y, Zhai T. Intrinsic Defect-Driven Synergistic Synaptic Heterostructures for Gate-Free Neuromorphic Phototransistors. Adv Mater 2024:e2309940. [PMID: 38373410 DOI: 10.1002/adma.202309940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/28/2024] [Indexed: 02/21/2024]
Abstract
The optoelectronic synaptic devices based on two-dimensional (2D) materials offer great advances for future neuromorphic visual systems with dramatically improved integration density and power efficiency. The effective charge capture and retention are considered as one vital prerequisite to realizing the synaptic memory function. However, the current 2D synaptic devices are predominantly relied on materials with artificially-engineered defects or intricate gate-controlled architectures to realize the charge trapping process. These approaches, unfortunately, suffer from the degradation of pristine materials, rapid device failure, and unnecessary complication of device structures. To address these challenges, an innovative gate-free heterostructure paradigm is introduced herein. The heterostructure presents a distinctive dome-like morphology wherein a defect-rich Fe7 S8 core is enveloped snugly by a curved MoS2 dome shell (Fe7 S8 @MoS2 ), allowing the realization of effective photocarrier trapping through the intrinsic defects in the adjacent Fe7 S8 core. The resultant neuromorphic devices exhibit remarkable light-tunable synaptic behaviors with memory time up to ≈800 s under single optical pulse, thus demonstrating great advances in simulating visual recognition system with significantly improved image recognition efficiency. The emergence of such heterostructures foreshadows a promising trajectory for underpinning future synaptic devices, catalyzing the realization of high-efficiency and intricate visual processing applications.
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Affiliation(s)
- Yao Deng
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Shenghong Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xiaoxi Ma
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Shuyang Guo
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Baoxing Zhai
- Institute of Semiconductors, Henan Academy of Sciences, Zhengzhou, 450046, P. R. China
| | - Zihan Zhang
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Manshi Li
- Wuhan National High Magnetic Field Centre, Department of Physics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yimeng Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Nanostructure Research Center, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wenhua Hu
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Hui Yang
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yury Kapitonov
- Department of Photonics, Saint Petersburg State University, Saint Petersburg, 199034, Russia
| | - Junbo Han
- Wuhan National High Magnetic Field Centre, Department of Physics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Jinsong Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Nanostructure Research Center, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yuan Li
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Tianyou Zhai
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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29
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Wang X, Wang Y, Ma M, Zhao X, Zhang J, Zhang F. P-N Bonds-Mediated Atomic-Level Charge-Transfer Channel Fabricated between Violet Phosphorus and Carbon Nitride Favors Charge Separation and Water Splitting. Small 2024:e2311841. [PMID: 38368255 DOI: 10.1002/smll.202311841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/29/2024] [Indexed: 02/19/2024]
Abstract
Heterostructures are widely employed in photocatalysis to promote charge separation and photocatalytic activity. However, their benefits are limited by the linkages and contact environment at the interface. Herein, violet phosphorus quantum dots (VPQDs) and graphitic carbon nitride (g-C3 N4 ) are employed as model materials to form VPQDs/g-C3 N4 heterostructures by a simple ultrasonic pulse excitation method. The heterostructure contains strong interfacial P-N bonds that mitigate interfacial charge-separation issues. P-P bond breakage occurs in the distinctive cage-like [P9] VPQD units during longitudinal disruption, thereby exposing numerous active P sites that bond with N atoms in g-C3 N4 under ultrasonic pulse excitation. The atomic-level interfacial P-N bonds of the Z-scheme VPQDs/g-C3 N4 heterostructure serve as photogenerated charge-transfer channels for improved electron-hole separation efficiency. This results in excellent photocatalytic performance with a hydrogen evolution rate of 7.70 mmol g-1 h-1 (over 9.2 and 8.5 times greater than those of pure g-C3 N4 and VPQDs, respectively) and apparent quantum yield of 11.68% at 400 nm. Using atomic-level chemical bonds to promote interfacial charge separation in phosphorene heterostructures is a feasible and effective design strategy for photocatalytic water-splitting materials.
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Affiliation(s)
- Xin Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yan Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Ming Ma
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xuewen Zhao
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Jinying Zhang
- State Key Laboratory of Electrical Insulation and Power Equipment, Center of Nanomaterials for Renewable Energy, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Fuxiang Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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30
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Kim S, Jeon Y, Lee EK, Kim YJ, Kim CH, Yoo H. Light-Triggerable and Gate-Tunable Negative Differential Resistance in Small Molecules Heterojunction. Nano Lett 2024; 24:2025-2032. [PMID: 38295356 DOI: 10.1021/acs.nanolett.3c04671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Negative differential resistance (NDR), a phenomenon in which the current decreases when the applied voltage is increased, is attracting attention as a unique electrical property. Here, we propose a broad spectral photo/gate cotunable channel switching NDR (CS-NDR) device. The proposed CS-NDR device has superior linear gate-tunable NDR behavior and highly reproducible properties compared to the previously reported NDR devices, as the fundamental mechanism of the CS-NDR device is directly related to a charge transport channel switching by the linear increase of the applied drain voltage. We also experimentally demonstrate that the photoinduced NDR behavior of the CS-NDR device was derived from the grain boundaries of dinaphtho[2;3-b:2',3'-f]-thieno[3,2-b]thiophene. Furthermore, this work produces a 9 × 9 CS-NDR device array composed of 81 devices, providing the reproducibility and uniformity of the CS-NDR device. Finally, we successfully demonstrate the detection of text images with 81 CS-NDR devices using the proposed photo/gate cotunable NDR behavior.
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Affiliation(s)
- Seongjae Kim
- SDC Research Group, Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Republic of Korea
| | - Yunchae Jeon
- SDC Research Group, Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Republic of Korea
| | - Eun Kwang Lee
- Department of Chemical Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Yeong Jae Kim
- Ceramic Total Solution Center, Korea Institute of Ceramic Engineering and Technology, Icheon 17303, Republic of Korea
| | - Chang-Hyun Kim
- School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Hocheon Yoo
- SDC Research Group, Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Republic of Korea
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Singha Roy S, Madhu R, Bera K, Nagappan S, Dhandapani HN, De A, Kundu S. Tuning the Activity and Stability of CoCr-LDH by Forming a Heterostructure on Surface-Oxidized Nickel Foam for Enhanced Water-Splitting Performance. ACS Appl Mater Interfaces 2024; 16:5965-5976. [PMID: 38263906 DOI: 10.1021/acsami.3c17540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
The development of low-cost, efficient catalysts for electrocatalytic water splitting to generate green hydrogen is a hot topic among researchers. Herein, we have developed a highly efficient heterostructure of CoCr-LDH on NiO on nickel foam (NF) for the first time. The preparation strategy follows the simple annealing of a cleaned NF without using any Ni salt precursor, followed by the growth of CoCr-LDH nanosheets over the surface-oxidized NF. The CoCr-LDH/NiO/NF catalyst shows excellent electrocatalytic activity and stability toward oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in a 1 M KOH solution. For OER, only 253 mV and for HER, only 185 mV overpotentials are required to attain a 50 mA cm-2 current density. Also, the long-term stability of both the OER and HER for 60 h proves its robustness. The turnover frequency value for the OER increased 1.85 times after the heterostructure formation compared to bare CoCr-LDH. The calculated Faradaic efficiency values of 97.4 and 94.75% for the OER and HER revealed the high intrinsic activity of the heterostructure. Moreover, the heterostructure only needs 1.57 V of cell voltage when acting as both the anode and the cathode to achieve a 10 mA cm-2 current density. The long-term stability of 60 h for the total water-splitting process proves its excellent performance. Several systematic pre- and post-experiment characterizations prove its durable nature. These excellent OER and HER activities and stabilities are attributed to the surface-modified electronic structure and thin nanosheet-like surface morphology of the heterostructure. The thin, wide, and modified surface of the catalyst facilitates the diffusion of ions (reactants) and gas molecules (products) at the electrode/electrolyte interface. Furthermore, electron transfer from n-type CoCr-LDH to p-type NiO results in enhanced electronic conductivity. This study demonstates the effective design of a self-supported heterostructure with minimal synthetic steps to generate a bifunctional electrocatalyst for water splitting, contributing to the greater cause of green hydrogen economy.
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Affiliation(s)
- Suprobhat Singha Roy
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Aditi De
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
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32
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Wang B, Zhang N, Wang Y, Chen D, Qi J, Tu J. S-induced Phase Change Forming In 2 O 3 /In 2 S 3 Heterostructure for Photoelectrochemical Glucose Sensor. Chemistry 2024; 30:e202303514. [PMID: 38081143 DOI: 10.1002/chem.202303514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Indexed: 02/03/2024]
Abstract
In the past several decades, Photoelectrochemical (PEC) sensing still remains a great challenge to design highly-efficient semiconductor photocatalysts via a facile method. It is of much importance to design and synthesize various novel nanostructured sensing materials for further improving the response performance. Herein, we present an In2 O3 /In2 S3 heterostructure obtained by combining microwave assisted hydrothermal method with S-induced phase change, whose energy band and electronic structure could be adjusted by changing the S content. Combining theoretical calculation and spectroscopic techniques, the introduction of sulfur was proved to produce multifunctional interfaces, inducing the change of phase, oxygen vacancies and band gap, which accelerates the separation of photoexcited carriers and reduces their recombination, improving the electronic injection efficiency around the interface of In2 O3 /In2 S3 . As anticipated, an enhanced glucose response performance with a photocurrent of 0.6 mA cm-2 , a linear range of 0.1-1 mM and a detection limit as low as 14.5 μM has been achieved based on the In2 O3 /In2 S3 heterostructure, which is significant superior over its pure In2 O3 and S-doped In2 O3 counterparts. This efficient interfacial strategy may open a new route to manipulate the electrical structure, and energy band structure regulation of sensing material to improve the performance of photoelectrodes for PEC.
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Affiliation(s)
- Bingrong Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Nan Zhang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Yifeng Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Delun Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Junlei Qi
- State Key Laboratory of Advanced Welding and, Joining Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Jinchun Tu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
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Shao S, Liang Z, Yin P, Li X, Zhang Y. Microstructure and Mechanical Properties of Al-Li Alloys with Different Li Contents Prepared by Selective Laser Melting. Materials (Basel) 2024; 17:657. [PMID: 38591497 PMCID: PMC10856739 DOI: 10.3390/ma17030657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/23/2024] [Accepted: 01/26/2024] [Indexed: 04/10/2024]
Abstract
Research on the development of new lightweight Al-Li alloys using a selective laser melting process has great potential for industrial applications. This paper reports on the development of novel aluminum-lithium alloys using selective laser melting technology. Al-Cu-Li-Mg-Ag-Sc-Zr pre-alloyed powders with lithium contents of 1 wt.%, 2 wt.% and 3 wt.%, respectively, were prepared by inert gas atomization. After SLM process optimization, the microstructure and mechanical properties of the as-printed specimens were investigated. The densifications of the three newly developed alloys were 99.51%, 98.96% and 92.01%, respectively. They all had good formability, with the lithium loss rate at about 15%. The as-printed alloy with 1% Li content presented good comprehensive properties, with a yield strength of 413 ± 16 MPa, an ultimate tensile strength of 461 ± 12 MPa, and an elongation of 14 ± 1%. The three alloys exhibited a layered molten pool stacking morphology and had a typical heterostructure. The columnar crystals and equiaxed fine grains were alternately arranged, and most of the precipitated phases were enriched at the grain boundaries. The change in Li content mainly affected the precipitation of the Cu-containing phase. When the Li content was 1 wt.%, the following occured: θ phase, T1 phase and TB phase. When Li increased to 2 wt.%, T1 and T2 phases precipitated together. When Li reaches 3 wt.%, δ' phase precipitated with T2 phase. This study provides useful guidance for the future SLM forming of new crack-free and high-strength Al-Li alloys.
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Affiliation(s)
- Shuobing Shao
- National Engineering & Technology Research Center for Non-Ferrous Metals Composites, GRINM Group Corporation Limited, Beijing 101407, China
- GRINM Metal Composites Technology Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Zhuoheng Liang
- National Engineering & Technology Research Center for Non-Ferrous Metals Composites, GRINM Group Corporation Limited, Beijing 101407, China
- GRINM Metal Composites Technology Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Peng Yin
- National Engineering & Technology Research Center for Non-Ferrous Metals Composites, GRINM Group Corporation Limited, Beijing 101407, China
- GRINM Metal Composites Technology Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Xinyuan Li
- National Engineering & Technology Research Center for Non-Ferrous Metals Composites, GRINM Group Corporation Limited, Beijing 101407, China
- GRINM Metal Composites Technology Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Yongzhong Zhang
- National Engineering & Technology Research Center for Non-Ferrous Metals Composites, GRINM Group Corporation Limited, Beijing 101407, China
- GRINM Metal Composites Technology Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
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Li X, Niu Z, Niu M, Wang J, Cao D, Zeng X. Single Atom Ru Doped Ni 2 P/Fe 3 P Heterostructure for Boosting Hydrogen Evolution for Water Splitting. Small 2024:e2311335. [PMID: 38286638 DOI: 10.1002/smll.202311335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/12/2024] [Indexed: 01/31/2024]
Abstract
Modulating the chemical composition and structure has been considered as one of the most promising strategies for developing high-efficient water splitting catalysts. Here, a single-atom Ru doped Ni2 P/Fe3 P catalyst is synthesized by introducing the dispersed Ru atoms to adjust Ni2 P/Fe3 P heterostructure. Single atom Ru provides effective hydrogen evolution reaction (HER) active sites for boosting catalytic activities. The catalyst with only 0.2 wt.% content of Ru exhibits an overpotential of 19.3 mV at 10 mA cm-2 , which is obviously lower than 146.1 mV of Ni2 P/Fe3 P. Notably, an alkaline overall water electrolyzer based on Ru-Ni2 P/Fe3 P catalysts achieves a cell voltage of 1.47 V and operates over 600 h at 10 mA cm-2 , which is superior to that of benchmark RuO2 //Pt/C (1.61 V). The theoretical calculations further confirm that Ru single atom doping can effectively optimize the hydrogen/water adsorption free energy of the active site and therefore improve the HER activity of heterostructure. This work provides a valuable reference to design high-activity and durability catalyst for water splitting through the double modulation of interface-effect and atomic doping.
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Affiliation(s)
- Xiuhui Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - ZeYuan Niu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Mang Niu
- State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - JiaXin Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaofei Zeng
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
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35
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Song J, Sun M. Modulating Thermoelectric Properties of the MoSe 2/WSe 2 Superlattice Heterostructure by Twist Angles. ACS Appl Mater Interfaces 2024; 16:3325-3333. [PMID: 38190725 DOI: 10.1021/acsami.3c15160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
In the current era of limited resources, the matter of energy conversion holds significant importance. Thermoelectric materials possess the ability to transform thermal energy into electric power. Achieving an impressive thermoelectric figure of merit (ZT) necessitates the presence of a high power factor alongside low thermal conductivity. Stimulated by recent experimental reports on the in-plane lateral MoSe2/WSe2 heterostructure in the application thermoelectric device [Zhang Y. et al., Simultaneous electrical and thermal rectification in a monolayer lateral heterojunction. Science 2022, 378, 169], in this study, the method of twisting angle is used to modulate the energy bands of van der Waals MoSe2/WSe2 superlattice heterostructures to optimize the carrier concentration, band gap, electric conductance, thermal conductivity, and ZT of the heterostructure. The 21.79° twisted heterostructures among different twisting-angle heterostructures benefit from both the high power factor and low thermal conductivity, ultimately leading to significantly improved ZT compared to the untwisted counterpart.
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Affiliation(s)
- Jizhe Song
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mengtao Sun
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
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36
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Zhai Z, Zhang C, Chen B, Liu L, Song H, Yang B, Zheng Z, Li J, Jiang X, Huang N. A Highly Active Porous Mo 2C-Mo 2N Heterostructure on Carbon Nanowalls/Diamond for a High-Current Hydrogen Evolution Reaction. Nanomaterials (Basel) 2024; 14:243. [PMID: 38334514 PMCID: PMC10856447 DOI: 10.3390/nano14030243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/07/2024] [Accepted: 01/16/2024] [Indexed: 02/10/2024]
Abstract
Developing non-precious metal-based electrocatalysts operating in high-current densities is highly demanded for the industry-level electrochemical hydrogen evolution reaction (HER). Here, we report the facile preparation of binder-free Mo2C-Mo2N heterostructures on carbon nanowalls/diamond (CNWs/D) via ultrasonic soaking followed by an annealing treatment. The experimental investigations and density functional theory calculations reveal the downshift of the d-band center caused by the heterojunction between Mo2C/Mo2N triggering highly active interfacial sites with a nearly zero ∆GH* value. Furthermore, the 3D-networked CNWs/D, as the current collector, features high electrical conductivity and large surface area, greatly boosting the electron transfer rate of HER occurring on the interfacial sites of Mo2C-Mo2N. Consequently, the self-supporting Mo2C-Mo2N@CNWs/D exhibits significantly low overpotentials of 137.8 and 194.4 mV at high current densities of 500 and 1000 mA/cm2, respectively, in an alkaline solution, which far surpass the benchmark Pt/C (228.5 and 359.3 mV) and are superior to most transition-metal-based materials. This work presents a cost-effective and high-efficiency non-precious metal-based electrocatalyst candidate for the electrochemical hydrogen production industry.
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Affiliation(s)
- Zhaofeng Zhai
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
- School of Materials Science and Engineering, University of Science and Technology of China, No. 72 Wenhua Road, Shenyang 110016, China
| | - Chuyan Zhang
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
| | - Bin Chen
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
- School of Materials Science and Engineering, University of Science and Technology of China, No. 72 Wenhua Road, Shenyang 110016, China
| | - Lusheng Liu
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
| | - Haozhe Song
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
| | - Bing Yang
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
- School of Materials Science and Engineering, University of Science and Technology of China, No. 72 Wenhua Road, Shenyang 110016, China
| | - Ziwen Zheng
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
- School of Materials Science and Engineering, University of Science and Technology of China, No. 72 Wenhua Road, Shenyang 110016, China
| | - Junyao Li
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
| | - Xin Jiang
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
- Institute of Materials Engineering, University of Siegen, No. 9-11 Paul-Bonatz-Str., 57076 Siegen, Germany
| | - Nan Huang
- Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), No. 72 Wenhua Road, Shenyang 110016, China; (Z.Z.); (C.Z.); (B.C.); (L.L.); (H.S.); (B.Y.); (Z.Z.); (J.L.)
- School of Materials Science and Engineering, University of Science and Technology of China, No. 72 Wenhua Road, Shenyang 110016, China
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Nam J, Lee GY, Lee DY, Sung D, Hong S, Jang AR, Kim KS. Tailored Synthesis of Heterogenous 2D TMDs and Their Spectroscopic Characterization. Nanomaterials (Basel) 2024; 14:248. [PMID: 38334519 PMCID: PMC10856291 DOI: 10.3390/nano14030248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 02/10/2024]
Abstract
Two-dimensional (2D) vertical van der Waals heterostructures (vdWHs) show great potential across various applications. However, synthesizing large-scale structures poses challenges owing to the intricate growth parameters, forming unexpected hybrid film structures. Thus, precision in synthesis and thorough structural analysis are essential aspects. In this study, we successfully synthesized large-scale structured 2D transition metal dichalcogenides (TMDs) via chemical vapor deposition using metal oxide (WO3 and MoO3) thin films and a diluted H2S precursor, individual MoS2, WS2 films and various MoS2/WS2 hybrid films (Type I: MoxW1-xS2 alloy; Type II: MoS2/WS2 vdWH; Type III: MoS2 dots/WS2). Structural analyses, including optical microscopy, Raman spectroscopy, transmission electron microscopy (TEM) with energy-dispersive X-ray spectroscopy, and cross-sectional imaging revealed that the A1g and E2g modes of WS2 and MoS2 were sensitive to structural variations, enabling hybrid structure differentiation. Type II showed minimal changes in the MoS2's A1g mode, while Types I and III exhibited a ~2.8 cm-1 blue shift. Furthermore, the A1g mode of WS2 in Type I displayed a 1.4 cm-1 red shift. These variations agreed with the TEM-observed microstructural features, demonstrating strain effects on the MoS2-WS2 interfaces. Our study provides insights into the structural features of diverse hybrid TMD materials, facilitating their differentiation through Raman spectroscopy.
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Affiliation(s)
- Jungtae Nam
- Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea; (J.N.); (G.Y.L.); (D.Y.L.); (S.H.)
| | - Gil Yong Lee
- Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea; (J.N.); (G.Y.L.); (D.Y.L.); (S.H.)
| | - Dong Yun Lee
- Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea; (J.N.); (G.Y.L.); (D.Y.L.); (S.H.)
| | - Dongchul Sung
- Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea; (J.N.); (G.Y.L.); (D.Y.L.); (S.H.)
| | - Suklyun Hong
- Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea; (J.N.); (G.Y.L.); (D.Y.L.); (S.H.)
| | - A-Rang Jang
- Division of Electrical, Electronic and Control Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Keun Soo Kim
- Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, Republic of Korea; (J.N.); (G.Y.L.); (D.Y.L.); (S.H.)
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Smyth CM, Cain JM, Boehm A, Ohlhausen JA, Lam MN, Yan X, Liu SE, Zeng TT, Sangwan VK, Hersam MC, Chou SS, Ohta T, Lu TM. Direct Characterization of Buried Interfaces in 2D/3D Heterostructures Enabled by GeO 2 Release Layer. ACS Appl Mater Interfaces 2024; 16:2847-2860. [PMID: 38170963 DOI: 10.1021/acsami.3c12849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Inconsistent interface control in devices based on two-dimensional materials (2DMs) has limited technological maturation. Astounding variability of 2D/three-dimensional (2D/3D) interface properties has been reported, which has been exacerbated by the lack of direct investigations of buried interfaces commonly found in devices. Herein, we demonstrate a new process that enables the assembly and isolation of device-relevant heterostructures for buried interface characterization. This is achieved by implementing a water-soluble substrate (GeO2), which enables deposition of many materials onto the 2DM and subsequent heterostructure release by dissolving the GeO2 substrate. Here, we utilize this novel approach to compare how the chemistry, doping, and strain in monolayer MoS2 heterostructures fabricated by direct deposition vary from those fabricated by transfer techniques to show how interface properties differ with the heterostructure fabrication method. Direct deposition of thick Ni and Ti films is found to react with the monolayer MoS2. These interface reactions convert 50% of MoS2 into intermetallic species, which greatly exceeds the 10% conversion reported previously and 0% observed in transfer-fabricated heterostructures. We also measure notable differences in MoS2 carrier concentration depending on the heterostructure fabrication method. Direct deposition of thick Au, Ni, and Al2O3 films onto MoS2 increases the hole concentration by >1012 cm-2 compared to heterostructures fabricated by transferring MoS2 onto these materials. Thus, we demonstrate a universal method to fabricate 2D/3D heterostructures and expose buried interfaces for direct characterization.
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Affiliation(s)
| | - John M Cain
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Alex Boehm
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - James A Ohlhausen
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Mila Nhu Lam
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Xiaodong Yan
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Stephanie E Liu
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Thomas T Zeng
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Vinod K Sangwan
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Mark C Hersam
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Stanley S Chou
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Taisuke Ohta
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Tzu-Ming Lu
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
- Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
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39
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Wang F, Yue S, Han X, Zhang T, Han A, Wang L, Liu J. ZnS/C Dual-Quantum-Dots Heterostructural Nanofibers for High-Performance Photocatalytic H 2O 2 Production. ACS Appl Mater Interfaces 2024; 16:2606-2613. [PMID: 38175744 DOI: 10.1021/acsami.3c14183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Constructing heterostructures of dual quantum-dots (QDs) is a promising way to achieve high performance in photocatalysis, but it still faces substantial synthetic challenges. Herein, we developed an in situ transformation strategy to coassemble ZnS QDs and C QDs into dual-quantum-dot heterostructural nanofibers (ZnS/C-DQDH). Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy results revealed the formation of strong Zn-O-C bonds at the interface between ZnS QDs and C QDs, improving the separation efficiency of photogenerated charge carriers. The ZnS/C-DQDH demonstrated remarkable photocatalytic activity in H2O2 production, with generation rates of 2896.4 μmol gcat-1 h-1 without sacrificial agents and 9879.3 μmol gcat-1 h-1 with ethanol as the sacrificial agent, significantly higher than the QD counterparts and surpassed state-of-the-art photocatalysts. Moreover, due to the nanofibrous feature, ZnS/C-DQDH demonstrated excellent stability and facile recyclability. This work provides a facile and large scalable method to gain dual-quantum-dot heterostructures and a promising alternative for photocatalytic H2O2 production.
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Affiliation(s)
- Fanping Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Shuang Yue
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xu Han
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Tianyu Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Aijuan Han
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Lianying Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Junfeng Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
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40
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Fan Q, Li X, Dong H, Ni Z, Hu T. ZIF-67 Anchored on MoS 2/rGO Heterostructure for Non-Enzymatic and Visible-Light-Sensitive Photoelectrochemical Biosensing. Biosensors (Basel) 2024; 14:38. [PMID: 38248415 PMCID: PMC10813494 DOI: 10.3390/bios14010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Graphene and graphene-like two-dimensional layered nanomaterials-based photoelectrochemical (PEC) biosensors have recently grown rapidly in popularity thanks to their advantages of high sensitivity and low background signal, which have attracted tremendous attention in ultrahigh sensitive small molecule detection. This work proposes a non-enzymatic and visible-light-sensitive PEC biosensing platform based on ZIF-67@MoS2/rGO composite which is synthesized through a facile and one-step microwave-assisted hydrothermal method. The combination of MoS2 and rGO could construct van der Waals heterostructures, which not only act as visible-light-active nanomaterials, but facilitate charge carriers transfer between the photoelectrode and glassy carbon electrode (GCE). ZIF-67 anchored on MoS2/rGO heterostructures provides large specific surface areas and a high proportion of catalytic sites, which cooperate with MoS2 nanosheets, realizing rapid and efficient enzyme-free electrocatalytic oxidation of glucose. The ZIF-67@MoS2/rGO-modified GCE can realize the rapid and sensitive detection of glucose at low detection voltage, which exhibits a high sensitivity of 12.62 μAmM-1cm-2. Finally, the ZIF-67@MoS2/rGO PEC biosensor is developed by integrating the ZIF-67@MoS2/rGO with a screen-printed electrode (SPE), which exhibits a high sensitivity of 3.479 μAmM-1cm-2 and a low detection limit of 1.39 μM. The biosensor's selectivity, stability, and repeatability are systematically investigated, and its practicability is evaluated by detecting clinical serum samples.
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Affiliation(s)
| | - Xiao Li
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China; (Q.F.); (H.D.); (Z.N.)
| | | | | | - Tao Hu
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China; (Q.F.); (H.D.); (Z.N.)
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41
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Zhang B, Qiu X, Chen T, Huang C, Yue X, Huang S. Construction of Heterostructure between Ni 17W 3 and WO 2 to Boost the Hydrogen Oxidation Reaction in Alkaline Medium. ACS Appl Mater Interfaces 2024. [PMID: 38214041 DOI: 10.1021/acsami.3c13952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The inferior intrinsic performance of Ni-based catalysts for the hydrogen oxidation reaction (HOR) in an alkaline medium seriously restricts the utilization of emerging anion-exchange membrane fuel cells (AEMFCs). This is because the hydrogen and hydroxyl binding energies on Ni need to be optimized. Although electrocatalysts obtained by alloying Ni with Mo or W reportedly exhibit enhanced activity, they are still far from industrial requirements based on unbalanced HBE and OHBE. Herein, we report to further enhance alkaline HOR activity by constructing a heterostructure between NiW alloy and metal oxide (Ni17W3/WO2), which is synthesized through solvothermal treatment combined with annealing. The as-fabricated reduced graphene oxide (rGO)-supported Ni17W3/WO2 (Ni17W3/WO2/rGO) exhibits state-of-the-art catalytic activity (current density of 2.9 mA cm-2 at 0.1 V vs RHE), faster kinetics (geometric kinetics current density of 4.0 mA cm-2 that can be comparable to Pt/C), and high stability (maintaining the current density for more than 80 h) toward HOR in alkaline media. The detailed characterizations reveal that the charge transfer across the boundary arising from constructing the as-prepared heterostructure tunes the electronic structures, ultimately facilitating the HOR process.
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Affiliation(s)
- Bin Zhang
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xinzhuo Qiu
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Tingzhao Chen
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Churong Huang
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xin Yue
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Shaoming Huang
- Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
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42
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Yuan R, Zhang Z, Wu G, Zhang Y, Sha J, Chen Y, Si W. Unfolding of protein using MoS 2/SnS 2heterostructure for nanopore-based sequencing. Nanotechnology 2024; 35:135501. [PMID: 38118165 DOI: 10.1088/1361-6528/ad177f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/20/2023] [Indexed: 12/22/2023]
Abstract
Protein sequencing is crucial for understanding the complex mechanisms driving biological functions. However, proteins are usually folded in their native state and the mechanism of fast protein conformation transitions still remains unclear, which make protein sequencing challenging. Molecular dynamics simulations with accurate force field are now able to observe the entire folding/unfolding process, providing valuable insights into protein folding mechanisms. Given that proteins can be unfolded, nanopore technology shows great potential for protein sequencing. In this study, we proposed to use MoS2/SnS2heterostructures to firstly unfold proteins and then detect them by a nanopore in the heterostructural membrane. All-atom molecular dynamics simulations performed in this work provided rich atomic-level information for a comprehensive understanding of protein unfolding process and mechanism on the MoS2/SnS2heterostructure, it was found that the strong binding of protein to SnS2nanostripe and hydrogen bond breaking were the main reasons for unfolding the protein on the heterostructure. After the protein was fully unfolded, it was restrained on the nanostripe because of the affinity of protein to the SnS2nanostripe. Thus by integrating the proposed unfolding technique with nanopore technology, detection of linear unfolded peptide was realized in this work, allowing for the identification of protein components, which is essential for sequencing proteins in the near future.
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Affiliation(s)
- Runyi Yuan
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211100, People's Republic of China
| | - Zhen Zhang
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211100, People's Republic of China
| | - Gensheng Wu
- School of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Yin Zhang
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211100, People's Republic of China
| | - Jingjie Sha
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211100, People's Republic of China
| | - Yunfei Chen
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211100, People's Republic of China
| | - Wei Si
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211100, People's Republic of China
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43
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Sun C, Zhou H, Sheng T, Li S, Zhu H. Ultrafast Interlayer Charge Transfer Outcompeting Intralayer Valley Relaxation in Few-Layer 2D Heterostructures. ACS Nano 2024; 18:931-938. [PMID: 38154000 DOI: 10.1021/acsnano.3c09681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
While 2D transition metal dichalcogenides (TMDs) feature interesting layer-tunable multivalley band structures, their preeminent role in determining the photoexcitation charge transfer dynamics in 2D heterostructures (HSs) is yet to be unraveled, as previous charge transfer studies on TMD HSs have been mostly focused on monolayers with a direct bandgap at the K valley. By ultrafast transient absorption spectroscopy and deliberately designed few-layer WSe2/WS2 HSs, we have observed an ultrafast interlayer electron transfer from photoexcited few-layer WSe2 to WS2, prior to intralayer relaxation to lower lying dark valleys. More interestingly, we have identified an unconventional ∼0.5 ps electron back-transfer process after the initial interlayer electron transfer in HSs with WSe2 layers ≥ 3, regenerating indirect intralayer excitons. The result reveals an ielectron and valley relaxation pathway mediated by interlayer charge transfer in 2D HSs, faster than intralayer relaxation. It also sheds light on the origin of generally observed robust ultrafast interlayer charge transfer in TMD HSs and provides guidance toward optoelectronic and valleytronic devices using few-layer TMDs.
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Affiliation(s)
- Cheng Sun
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China, 310027
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, China, 311215
| | - Hongzhi Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China, 310027
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, China, 311215
| | - Tianyu Sheng
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China, 310027
| | - Shuangshuang Li
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China, 310027
| | - Haiming Zhu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China, 310027
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, China, 311215
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44
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Xu P, Wen C, Gao C, Liu H, Li Y, Guo X, Shen XC, Liang H. Near-Infrared-II-Activatable Self-Assembled Manganese Porphyrin-Gold Heterostructures for Photoacoustic Imaging-Guided Sonodynamic-Augmented Photothermal/Photodynamic Therapy. ACS Nano 2024; 18:713-727. [PMID: 38117769 DOI: 10.1021/acsnano.3c09011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Porphyrins and their derivatives are widely used as photosensitizers and sonosensitizers in tumor treatment. Nevertheless, their poor water solubility and low chemical stability reduce their singlet oxygen (1O2) yield and, consequently, their photodynamic therapy (PDT) and sonodynamic therapy (SDT) efficiency. Although strategies for porphyrin molecule assembly have been developed to augment 1O2 generation, there is scope for further improving PDT and SDT efficiencies. Herein, we synthesized ordered manganese porphyrin (SM) nanoparticles with well-defined self-assembled metalloporphyrin networks that enabled efficient energy transfer for enhanced photocatalytic and sonocatalytic activity in 1O2 production. Subsequently, Au nanoparticles were grown in situ on the SM surface by anchoring the terminal alkynyl of porphyrin to form plasmonic SMA heterostructures, which showed the excellent near-infrared-II (NIR-II) region absorption and photothermal properties, and facilitated electron-hole pair separation and transfer. With the modification of hyaluronic acid (HA), SMAH heterostructure nanocomposites exhibited good water solubility and were actively targeted to cancer cells. Under NIR-II light and ultrasound (US) irradiation, the SMAH generates hyperthermia, and a large amount of 1O2, inducing cancer cell damage. Both in vitro and in vivo studies confirmed that the SMAH nanocomposites effectively suppressed tumor growth by decreasing GSH levels in SDT-augmented PDT/PTT. Moreover, by utilizing the strong absorption in the NIR-II window, SMAH nanocomposites can achieve NIR-II photoacoustic imaging-guided combined cancer treatment. This work provides a paradigm for enhancing the 1O2 yield of metalloporphyrins to improve the synergistic therapeutic effect of SDT/PDT/PTT.
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Affiliation(s)
- Peijing Xu
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Changchun Wen
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Cunji Gao
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Huihui Liu
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Yingshu Li
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Xiaolu Guo
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Xing-Can Shen
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Hong Liang
- School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin 541004, People's Republic of China
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45
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Gong F, Chen Z, Zhao Y, Zhang H, Zeng G, Yao C, Gong L, Zhang Y, Liu J, Wei S. Trifunctional L-Cysteine Assisted Construction of MoO 2 /MoS 2 /C Nanoarchitecture Toward High-Rate Sodium Storage. Small 2024:e2307986. [PMID: 38189535 DOI: 10.1002/smll.202307986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/11/2023] [Indexed: 01/09/2024]
Abstract
The volume collapse and slow kinetics reaction of anode materials are two key issues for sodium ion batteries (SIBs). Herein, an "embryo" strategy is proposed for synthesis of nanorod-embedded MoO2 /MoS2 /C network nanoarchitecture as anode for SIBs with high-rate performance. Interestingly, L-cysteine which plays triple roles including sulfur source, reductant, and carbon source can be utilized to produce the sulfur vacancy-enriched heterostructure. Specifically, L-cysteine can combine with metastable monoclinic MoO3 nanorods at room temperature to encapsulate the "nutrient" of MoOx analogues (MoO2.5 (OH)0.5 and MoO3 ·0.5H2 O) and hydrogen-deficient L-cysteine in the "embryo" precursor affording for subsequent in situ multistep heating treatment. The resultant MoO2 /MoS2 /C presents a high-rate capability of 875 and 420 mAh g-1 at 0.5 and 10 A g-1 , respectively, which are much better than the MoS2 -based anode materials reported by far. Finite element simulation and analysis results verify that the volume expansion can be reduced to 42.8% from 88.8% when building nanorod-embedded porous network structure. Theoretical calculations reveal that the sulfur vacancies and heterointerface engineering can promote the adsorption and migration of Na+ leading to highly enhanced thermodynamic and kinetic reaction. The work provides an efficient approach to develop advanced electrode materials for energy storage.
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Affiliation(s)
- Feilong Gong
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Zhilin Chen
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yang Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Hongge Zhang
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Guang Zeng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Cuijie Yao
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Lihua Gong
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yonghui Zhang
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Jian Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
- DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering and Advanced Technology Institute of University of Surrey, Guildford, Surrey, GU2 7XH, UK
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, P. R. China
| | - Shizhong Wei
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
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46
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Fukata N, Jevasuwan W. Formation and characterization of Group IV semiconductor nanowires. Nanotechnology 2024; 35:122001. [PMID: 38096568 DOI: 10.1088/1361-6528/ad15b8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
To enable the application to next-generation devices of semiconductor nanowires (NWs), it is important to control their formation and tune their functionality by doping and the use of heterojunctions. In this paper, we introduce formation and the characterization methods of nanowires, focusing on our research results. We describe a top-down method of controlling the size and alignment of nanowires that shows advantages over bottom-up growth methods. The latter technique causes damage to the nanowire surfaces, requiring defect removal after the NW formation process. We show various methods of evaluating the bonding state and electrical activity of impurities in NWs. If an impurity is doped in a NW, mobility decreases due to the scattering that it causes. As a strategy for solving this problem, we describe research into core-shell nanowires, in which Si and Ge heterojunctions are formed in the diameter direction inside the NW. This structure can separate the impurity-doped region from the carrier transport region, promising as a channel for the new ultimate high-mobility transistor.
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Affiliation(s)
- Naoki Fukata
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba 305-0044, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
| | - Wipakorn Jevasuwan
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba 305-0044, Japan
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47
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Cheng Z, Yang Y, Wang P, Wang P, Yang J, Wang D, Chen Q. Optimizing Hydrogen and Hydroxyl Adsorption over Ru/WO 2.9 Metal/Metalloid Heterostructure Electrocatalysts for Highly Efficient and Stable Hydrogen Oxidation Reactions in Alkaline Media. Small 2024:e2307780. [PMID: 38168535 DOI: 10.1002/smll.202307780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/06/2023] [Indexed: 01/05/2024]
Abstract
The development of high-performance, stable and platinum-free electrocatalysts for the hydrogen oxidation reaction (HOR) in alkaline media is crucial for the commercial application of anion exchange membrane fuel cells (AEMFCs). Ruthenium, as an emerging HOR electrocatalyst with a price advantage over platinum, still needs to solve the problems of low intrinsic activity and easy oxidation. Herein, Ru nanoparticles are anchored on the oxygen-vacancy-rich metalloid WO2.9 by interfacial engineering to create abundant and efficient Ru and WO2.9 interfacial active sites for accelerated HOR in alkaline media. Ru/WO2.9 /C displays excellent catalytic activity with mass activity (8.29 A mgNM -1 ) and specific activity (1.32 mA cmNM -2 ), which are 2.5/3.3 and 21.8/8.3 times that of PtRu/C and Pt/C, respectively. Moreover, Ru/WO2.9 /C exhibits excellent CO tolerance and operational stability. Experimental and theoretical studies reveal that the improved charge transfer from Ru to WO2.9 in the metal/metalloid heterostructure significantly tune the electronic structure of Ru sites and optimize the hydrogen binding energy (HBE) of Ru. While, WO2.9 provides abundant hydroxyl adsorption sites. Therefore, the equilibrium adsorption of hydrogen and hydroxyl at the interface of Ru/WO2.9 will be realized, and the oxidation of metal Ru would be avoided, thereby achieving excellent HOR activity and durability.
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Affiliation(s)
- Zhiyu Cheng
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yang Yang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Peichen Wang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Pengcheng Wang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Jiahe Yang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Dongdong Wang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Qianwang Chen
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
- The High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
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48
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Zhang Y, Cheng L, Li L, Lin Y, Li S, Li Y, Ren X, Zhang P, Sun L. ZnSe/SnSe Heterostructure Incorporated with Selenium/Nitrogen Co-Doped Carbon Nanofiber Skeleton for Sodium-Ion Batteries. Small 2024:e2306536. [PMID: 38168889 DOI: 10.1002/smll.202306536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/02/2023] [Indexed: 01/05/2024]
Abstract
Effective strategies toward building exquisite nanostructures with enhanced structural integrity and improved reaction kinetics will carry forward the practical application of alloy-based materials as anodes in batteries. Herein, a free-standing 3D carbon nanofiber (CNF) skeleton incorporated with heterostructured binary metal selenides (ZnSe/SnSe) nanoboxes is developed for Na-ion storage anodes, which can facilitate Na+ ion migration, improve structure integrity, and enhance the electrochemical reaction kinetics. During the carbonization and selenization process, selenium/nitrogen (Se/N) is co-doped into the 3D CNF skeleton, which can improve the conductivity and wettability of the CNF matrices. More importantly, the ZnSe/SnSe heterostructures and the Se/N co-doping CNFs can have a synergistic interfacial coupling effect and built-in electric field in the heterogeneous interfaces of ZnSe/SnSe hetero-boundaries as well as the interfaces between the CNF matrix and the selenide heterostructures, which can enable fast ion/electron transport and accelerate surface/internal reaction kinetics for Na-ion storage. The ZnSe/SnSe@Se,N-CNFs exhibit superior Na-ion storage performance than the comparative ZnSe/SnSe, ZnSe and SnSe powders, which deliver an excellent rate performance (882.0, 773.6, 695.7, 634.2, and 559.0 mAh g-1 at current rates of 0.1, 0.2, 0.5, 1, and 2 A g-1 ) and long-life cycling stability of 587.5 mAh g-1 for 3500 cycles at 2 A g-1 .
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Affiliation(s)
- Yingmeng Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Lele Cheng
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Liheng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yihan Lin
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Shaojun Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yongliang Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xiangzhong Ren
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Lingna Sun
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
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Cao X, Zhou R, Xiong Y, Du G, Feng Z, Pan Q, Chen Y, Ji H, Ni Z, Lu J, Hu H, You Y. Volume-Confined Fabrication of Large-Scale Single-Crystalline Molecular Ferroelectric Thin Films and Their Applications in 2D Materials. Adv Sci (Weinh) 2024; 11:e2305016. [PMID: 38037482 PMCID: PMC10811469 DOI: 10.1002/advs.202305016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/23/2023] [Indexed: 12/02/2023]
Abstract
With outstanding advantages of chemical synthesis, structural diversity, and mechanical flexibility, molecular ferroelectrics have attracted increasing attention, demonstrating themselves as promising candidates for next-generation wearable electronics and flexible devices in the film form. However, it remains a challenge to grow high-quality thin films of molecular ferroelectrics. To address the above issue, a volume-confined method is utilized to achieve ultrasmooth single-crystal molecular ferroelectric thin films at the sub-centimeter scale, with the thickness controlled in the range of 100-1000 nm. More importantly, the preparation method is applicable to most molecular ferroelectrics and has no dependency on substrates, showing excellent reproducibility and universality. To demonstrate the application potential, two-dimensional (2D) transitional metal dichalcogenide semiconductor/molecular ferroelectric heterostructures are prepared and investigated by optical spectroscopic method, proving the possibility of integrating molecular ferroelectrics with 2D layered materials. These results may unlock the potential for preparing and developing high-performance devices based on molecular ferroelectric thin films.
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Affiliation(s)
- Xiao‐Xing Cao
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Ru‐Jie Zhou
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Yu‐An Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Guo‐Wei Du
- Key Laboratory of Quantum Materials and Devices of Ministry of EducationSchool of PhysicsSoutheast UniversityNanjing211189People's Republic of China
| | - Zi‐Jie Feng
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Qiang Pan
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Yin‐Zhu Chen
- Key Laboratory of Quantum Materials and Devices of Ministry of EducationSchool of PhysicsSoutheast UniversityNanjing211189People's Republic of China
| | - Hao‐Ran Ji
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Zhenhua Ni
- Key Laboratory of Quantum Materials and Devices of Ministry of EducationSchool of PhysicsSoutheast UniversityNanjing211189People's Republic of China
| | - Junpeng Lu
- Key Laboratory of Quantum Materials and Devices of Ministry of EducationSchool of PhysicsSoutheast UniversityNanjing211189People's Republic of China
| | - Huihui Hu
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
| | - Yu‐Meng You
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing211189People's Republic of China
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50
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Tang F, Jiang W, Xie J, Zhao D, Meng Y, Yang Z, Lv Z, Xu Y, Sun W, Jiang Z. PPy-Coated Mo 3S 4/CoMo 2S 4 Nanotube-like Heterostructure for High-Performance Lithium Storage. Molecules 2023; 29:234. [PMID: 38202816 PMCID: PMC10780578 DOI: 10.3390/molecules29010234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Heterostructured materials show great potential to enhance the specific capacity, rate performance and cycling lifespan of lithium-ion batteries owing to their unique interfaces, robust architectures, and synergistic effects. Herein, a polypyrrole (PPy)-coated nanotube-like Mo3S4/CoMo2S4 heterostructure is prepared by the hydrothermal and subsequent in situ polymerization methods. The well-designed nanotube-like structure is beneficial to relieve the serious volume changes and facilitate the infiltration of electrolytes during the charge/discharge process. The Mo3S4/CoMo2S4 heterostructure could effectively enhance the electrical conductivity and Li+ transport kinetics owing to the refined energy band structure and the internal electric field at the heterostructure interface. Moreover, the conductive PPy-coated layer could inhibit the obvious volume expansion like a firm armor and further avoid the pulverization of the active material and aggregation of generated products. Benefiting from the synergistic effects of the well-designed heterostructure and PPy-coated nanotube-like architecture, the prepared Mo3S4/CoMo2S4 heterostructure delivers high reversible capacity (1251.3 mAh g-1 at 300 mA g-1), superior rate performance (340.3 mAh g-1 at 5.0 A g-1) and excellent cycling lifespan (744.1 mAh g-1 after 600 cycles at a current density of 2.0 A g-1). Such a design concept provides a promising strategy towards heterostructure materials to enhance their lithium storage performances and boost their practical applications.
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Affiliation(s)
| | | | | | | | | | - Zhenglong Yang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China; (F.T.); (W.J.); (J.X.); (D.Z.); (Y.M.); (Y.X.); (W.S.); (Z.J.)
| | - Zhiqiang Lv
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China; (F.T.); (W.J.); (J.X.); (D.Z.); (Y.M.); (Y.X.); (W.S.); (Z.J.)
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