1
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Chen H, Deng L, Liu S, Hu F, Li L, Ren J, Peng S. A strongly coupled oxide-support heterostructure for efficient acidic water oxidation. Chem Commun (Camb) 2024. [PMID: 39319388 DOI: 10.1039/d4cc04262j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2024]
Abstract
The synthesized RuO2/MnCo2O4.5 nano-heterostructure possesses dense interfaces and abundant defect structures, synergistically balancing oxygen evolution reaction (OER) activity and stability. RuO2/MnCo2O4.5 exhibits a low overpotential of 190 mV at 10 mA cm-2. The proton exchange membrane (PEM) electrolyzer assembled can operate at 200 mA cm-2 stably for 50 h.
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Affiliation(s)
- Hongjun Chen
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
| | - Liming Deng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
| | - Shuyi Liu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
| | - Feng Hu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
| | - Linlin Li
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
| | - Jianwei Ren
- Department of Chemical Engineering, University of Pretoria, cnr Lynnwood Road and Roper Street, Hatfield 0028, South Africa.
| | - Shengjie Peng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai 200050, China
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2
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Xu H, Liu Y, Wang K, Jin L, Chen J, He G, Chen H. Multicomponent Interface and Electronic Structure Engineering in Ir-Doped CoMO 4-Co(OH) 2 (M = W and Mo) Enable Promoted Oxygen Evolution Reaction. Inorg Chem 2024; 63:16037-16046. [PMID: 39121355 DOI: 10.1021/acs.inorgchem.4c02603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
The core principles of multicomponent interface and electronic structure engineering are essential in designing high-performance catalysts for the oxygen evolution reaction (OER). However, combining these aspects within a catalyst is a significant challenge. In this investigation, a novel approach involving the development of hybrid Ir-doped CoMO4-Co(OH)2 (M = W and Mo) hollow nanoboxes was introduced, enabling remarkably efficient water oxidation electrocatalysis. Constructed from ultrathin nanosheet-assembled hollow nanoboxes, these structures boast a wealth of active centers for intermediate species, which in turn enhance both charge transfer and mass transport capabilities. Moreover, the compelling electronic and synergistic effects arising from the interaction between CoMO4 and Co(OH)2 significantly bolster OER electrocatalysis by facilitating efficient electron transfer. The introduction of Ir atoms serves to strategically adjust the electronic structure, fine-tune its electronic state, and operate as active centers to enhance OER electrocatalysis, thus diminishing the overpotential. This configuration results in Ir-CoWO4-Co(OH)2 and Ir-CoMoO4-Co(OH)2 exhibiting impressively low overpotentials of 252 and 261 mV, respectively, to 10 mA cm-2. Utilized in conjunction with the Pt/C catalyst in a two-electrode system for overall water splitting, a mere 1.53 V cell potential is needed to achieve the desired 10 mA cm-2 current density.
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Affiliation(s)
- Hui Xu
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
| | - Yang Liu
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
| | - Kun Wang
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
| | - Lei Jin
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
| | - Jie Chen
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
| | - Guangyu He
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
| | - Haiqun Chen
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China
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3
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Hu S, Wang K, Xu X, Wang Q. Co-doping regulation on Ni-based electrocatalysts to adjust the selectivity of oxygen reduction reaction for Zn-air batteries and H 2O 2 production. Dalton Trans 2024. [PMID: 39041789 DOI: 10.1039/d4dt01625d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Although Ni-based materials are widely used as electrocatalysts, it remains necessary to further explore their selectivity towards the four- or two-electron oxygen reduction reaction (ORR). Herein, it is proposed to synthesize NiO@NCNTs (NCNTs = N-doped carbon nanotubes) using a metal-organic framework (MOF), [Ni(BZIDA)(H2O)]n (NiMOF, BZIDA = benzimidazole-5,6-dicarboxylic acid), as a precursor after calcination with dicyandiamide (DCDA). Regarding NiO@NCNTs, small NiO particles are distributed in NCNTs derived from DCDA homogeneously. NiO@NCNTs act as a typical two-electron electrocatalyst. The H2O2 production rate of NiO@NCNTs reaches 0.5 mol g-1 h-1 at 0.46 V (vs. RHE). After the doping of Co2+ in NiMOF, Co/NiO@NCNTs were synthesized using a similar method, with the four-electron character shown in ORR. A Zn-air battery was assembled by applying Co/NiO@NCNTs as the cathode material. When discharge occurs at 5 and 10 mA cm-2, its specific capacitance reaches 779.3 and 832.2 mA h g-1 with an energy density of 928.6 and 948.5 W h kg-1, respectively. Theoretical calculations suggest a variation in ORR selectivity between NiO@NCNTs and Co/NiO@NCNTs, which results from their different interactions with OOH*. This study demonstrates the effect of the structure on ORR selectivity for Ni-based electrocatalysts.
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Affiliation(s)
- Songhan Hu
- Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China.
- School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
| | - Kai Wang
- Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China.
| | - Xinxin Xu
- Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, Liaoning, China
| | - Qiang Wang
- Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China.
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4
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Zhao X, Wu F, Hu H, Li J, Sun Y, Wang J, Zou G, Chen X, Wang Y, Fernandez C, Peng Q. N-Decorated Main-Group MgAl 2O 4 Spinel: Unlocking Exceptional Oxygen Reduction Activity for Zn-Air Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311268. [PMID: 38342592 DOI: 10.1002/smll.202311268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/15/2024] [Indexed: 02/13/2024]
Abstract
The development of economical and efficient oxygen reduction reaction (ORR) catalysts is crucial to accelerate the widespread application rhythm of aqueous rechargeable zinc-air batteries (ZABs). Here, a strategy is reported that the modification of the binding energy for reaction intermediates by the axial N-group converts the inactive spinel MgAl2O4 into the active motif of MgAl2O4-N. It is found that the introduction of N species can effectively optimize the electronic configuration of MgAl2O4, thereby significantly reducing the adsorption strength of *OH and boosting the reaction process. This main-group MgAl2O4-N catalyst exhibits a high ORR activity in a broad pH range from acidic and alkaline environments. The aqueous ZABs assembled with MgAl2O4-N shows a peak power density of 158.5 mW cm-2, the long-term cyclability over 2000 h and the high stability in the temperature range from -10 to 50 °C, outperforming the commercial Pt/C in terms of activity and stability. This work not only serves as a significant candidate for the robust ORR electrocatalysts of aqueous ZABs, but also paves a new route for the effective reutilization of waste Mg alloys.
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Affiliation(s)
- Xue Zhao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Fengqi Wu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Haidong Hu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Jinyu Li
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Yong Sun
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Jing Wang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Guodong Zou
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
| | - Xiaobo Chen
- School of Engineering, RMIT University, Carlton, VIC, 3053, Australia
| | - Yong Wang
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Carlos Fernandez
- School of Pharmacy and life sciences, Robert Gordon University, Aberdeen, AB107GJ, UK
| | - Qiuming Peng
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China
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5
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Liu R, Zhang C, Wu T, Liu R, Sun Y, Ma J. Fabrication of a novel HKUST-1/CoFe 2O 4/g-C 3N 4 electrode for the electrochemical detection of ciprofloxacin in physiological samples. Talanta 2024; 273:125882. [PMID: 38513472 DOI: 10.1016/j.talanta.2024.125882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 03/02/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024]
Abstract
In this work, a novel HKUST-1/CoFe2O4/g-C3N4 electrode was successfully prepared via the hydrothermal method and the high-temperature calcination method, which can be applied as an electrochemical sensor for the precise detection of ciprofloxacin (CIP) in physiological samples. The novel electrode was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FT-IR), and its electrochemical performance was further evaluated via the cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. The results demonstrated that the HKUST-1/CoFe2O4/g-C3N4 electrode exhibited an optimal linear range of 0.05-180 μmol L-1 for the CIP detection, which demonstrated a low limit of detection (LOD) of 0.0026 μmol L-1 and a low limit of quantitation (LOQ) of 0.0087 μmol L-1, respectively. Additionally, the novel semiconductor sensors exhibited exceptional selectivity, stability and repeatability in the determination of CIP. The recovery rate of CIP was found to range from 98.00% to 104.00% in serum, with the relative standard deviations (RSD) below 2.62% (n = 5), while the recovery rate of CIP was found to range from 96.00% to 105.00%, with the RSD less than 3.23% (n = 5) in urine. The current study extends to the application of the semiconductor-based electrochemical sensors and offers a new approach for the clinical pharmaceutical analysis to ensure medication safety, which could provide valuable insights into the potential of semiconductor sensors for future clinical applications.
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Affiliation(s)
- Rui Liu
- Center of Pharmaceutical Engineering and Technology, Harbin University of Commerce, Harbin, 150076, China.
| | - Chaojun Zhang
- Center of Pharmaceutical Engineering and Technology, Harbin University of Commerce, Harbin, 150076, China
| | - Tianheng Wu
- Center of Pharmaceutical Engineering and Technology, Harbin University of Commerce, Harbin, 150076, China
| | - Rijia Liu
- Center of Pharmaceutical Engineering and Technology, Harbin University of Commerce, Harbin, 150076, China
| | - Yuan Sun
- Center of Pharmaceutical Engineering and Technology, Harbin University of Commerce, Harbin, 150076, China.
| | - Jing Ma
- Department of Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
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6
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Li X, Wang M, Fu J, Lu F, Li Z, Wang G. Sulfurized NiFe 2O 4 Electrocatalyst with In Situ Formed Fe-NiOOH Nanoparticles to Realize Industrial-Level Oxygen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310040. [PMID: 38150619 DOI: 10.1002/smll.202310040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/11/2023] [Indexed: 12/29/2023]
Abstract
Constructing composite catalysts with refined geometric control and optimal electronic structure provides a promising route to enhance electrocatalytic performance toward the oxygen evolution reaction (OER). Herein, a composite catalyst is prepared with multiple components using chemical vapour deposition method to transform crystalline NiFe2O4 into crystalline NiFe2O4@amorphous S-NiFe2O4 with core-shell structure (C-NiFe2O4@A-S-NiFe2O4), and Fe-NiOOH nanoparticles are subsequently in situ generated on its surface during the process of electrocatalytic OER. The C-NiFe2O4@A-S-NiFe2O4 catalyst exhibits a low overpotential of 275 mV while possessing an excellent stability for 500 h at 10 mA cm-2. The anion exchange membrane water electrolyzer with C-NiFe2O4@A-S-NiFe2O4 anode catalyst obtains a current density of 4270 mA cm- 2 at 2.0 V. Further, in situ Raman spectroscopy result demonstrates that in situ generated Fe-NiOOH nanoparticles are revealed to act as the catalytic active phase for catalyzing the OER. Besides, introducing A-S-NiFe2O4 in C-NiFe2O4@A-S-NiFe2O4 facilitates the formation of Fe-NiOOH nanoparticles with high-valency Ni, thus increasing the proportion of lattice oxygen-participated OER. This work not only provides an alternative strategy for the design of high-performance catalysts, but also lays a foundation for the exploration of catalytic mechanisms.
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Affiliation(s)
- Xiang Li
- College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, 116028, China
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Mengna Wang
- College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, 116028, China
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Jie Fu
- College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, 116028, China
| | - Fang Lu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhenyu Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Guoxiong Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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7
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Miao J, Lin C, Yuan X, An Y, Yang Y, Li Z, Zhang K. Supramolecular catalyst with [FeCl 4] unit boosting photoelectrochemical seawater splitting via water nucleophilic attack pathway. Nat Commun 2024; 15:2023. [PMID: 38448472 PMCID: PMC10918074 DOI: 10.1038/s41467-024-46342-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/23/2024] [Indexed: 03/08/2024] Open
Abstract
Propelled by the structure of water oxidation co-catalysts in natural photosynthesis, molecular co-catalysts have long been believed to possess the developable potential in artificial photosynthesis. However, the interfacial complexity between light absorber and molecular co-catalyst limits its structural stability and charge transfer efficiency. To overcome the challenge, a supramolecular scaffold with the [FeCl4] catalytic units is reported, which undergo a water-nucleophilic attack of the water oxidation reaction, while the supramolecular matrix can be in-situ grown on the surface of photoelectrode through a simple chemical polymerization to be a strongly coupled interface. A well-defined BiVO4 photoanode hybridized with [FeCl4] units in polythiophene reaches 4.72 mA cm-2 at 1.23 VRHE, which also exhibits great stability for photoelectrochemical seawater splitting due to the restraint on chlorine evolution reaction by [FeCl4] units and polythiophene. This work provides a novel solution to the challenge of the interface charge transfer of molecular co-catalyst hybridized photoelectrode.
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Affiliation(s)
- Jiaming Miao
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Cheng Lin
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Xiaojia Yuan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yang An
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yan Yang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zhaosheng Li
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, 22 Hankou Road, Nanjing, 210093, China.
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, 22 Hankou Road, Nanjing, 210093, China.
| | - Kan Zhang
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
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8
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Gopalakrishnan M, Kao-ian W, Rittiruam M, Praserthdam S, Praserthdam P, Limphirat W, Nguyen MT, Yonezawa T, Kheawhom S. 3D Hierarchical MOF-Derived Defect-Rich NiFe Spinel Ferrite as a Highly Efficient Electrocatalyst for Oxygen Redox Reactions in Zinc-Air Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11537-11551. [PMID: 38361372 PMCID: PMC11184548 DOI: 10.1021/acsami.3c17789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
The strategy of defect engineering is increasingly recognized for its pivotal role in modulating the electronic structure, thereby significantly improving the electrocatalytic performance of materials. In this study, we present defect-enriched nickel and iron oxides as highly active and cost-effective electrocatalysts, denoted as Ni0.6Fe2.4O4@NC, derived from NiFe-based metal-organic frameworks (MOFs) for oxygen reduction reactions (ORR) and oxygen evolution reactions (OER). XANES and EXAFS confirm that the crystals have a distorted structure and metal vacancies. The cation defect-rich Ni0.6Fe2.4O4@NC electrocatalyst exhibits exceptional ORR and OER activities (ΔE = 0.68 V). Mechanistic pathways of electrochemical reactions are studied by DFT calculations. Furthermore, a rechargeable zinc-air battery (RZAB) using the Ni0.6Fe2.4O4@NC catalyst demonstrates a peak power density of 187 mW cm-2 and remarkable long-term cycling stability. The flexible solid-state ZAB using the Ni0.6Fe2.4O4@NC catalyst exhibits a power density of 66 mW cm-2. The proposed structural design strategy allows for the rational design of electronic delocalization of cation defect-rich NiFe spinel ferrite attached to ultrathin N-doped graphitic carbon sheets in order to enhance active site availability and facilitate mass and electron transport.
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Affiliation(s)
- Mohan Gopalakrishnan
- Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Wathanyu Kao-ian
- Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Meena Rittiruam
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok 10330, Thailand
- High-Performance
Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic
Reaction Engineering (CECC), Chulalongkorn
University, Bangkok 10330, Thailand
- Rittiruam
Research Group, Bangkok 10330, Thailand
| | - Supareak Praserthdam
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok 10330, Thailand
- High-Performance
Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic
Reaction Engineering (CECC), Chulalongkorn
University, Bangkok 10330, Thailand
| | - Piyasan Praserthdam
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok 10330, Thailand
| | - Wanwisa Limphirat
- Synchrotron
Light Research Institute, 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand
| | - Mai Thanh Nguyen
- Division
of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Tetsu Yonezawa
- Division
of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Soorathep Kheawhom
- Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Bio-Circular-Green-economy
Technology & Engineering Center (BCGeTEC), Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Center
of Excellence on Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok 10330, Thailand
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9
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Zhang L, Xia S, Zhang X, Yao Y, Zhang Y, Chen S, Chen Y, Yan J. Low-Temperature Synthesis of Mesoporous Half-Metallic High-Entropy Spinel Oxide Nanofibers for Photocatalytic CO 2 Reduction. ACS NANO 2024. [PMID: 38334301 DOI: 10.1021/acsnano.3c09559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
High-entropy oxides (HEOs) exhibit great prospects owing to their varied composition, chemical adaptability, adjustable light-absorption ability, and strong stability. In this study, we report a strategy to synthesize a series of porous high-entropy spinel oxide (HESO) nanofibers (NFs) at a low temperature of 400 °C by a sol-gel electrospinning technique. The key lies in selecting six acetylacetonate salt precursors with similar coordination abilities, maintaining a high-entropy disordered state during the transformation from stable sols to gel NFs. The as-synthesized HESO NFs of (NiCuMnCoZnFe)3O4 show a high specific surface area of 66.48 m2/g, a diverse elemental composition, a dual bandgap, half-metallicity property, and abundant defects. The diverse elements provide various synergistic catalytic sites, and oxygen vacancies act as active sites for electron-hole separation, while the half-metallicity and dual-bandgap structure offer excellent light absorption ability, thus expanding its applicability to a wide range of photocatalytic processes. As a result, the HESO NFs can efficiently convert CO2 into CH4 and CO with high yields of 8.03 and 15.89 μmol g-1 h-1, respectively, without using photosensitizers or sacrificial agents.
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Affiliation(s)
- Liang Zhang
- College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
| | - Shuhui Xia
- College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiaohua Zhang
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, People's Republic of China
| | - Yonggang Yao
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Yuanyuan Zhang
- College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
| | - Shuo Chen
- College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
| | - Yuehui Chen
- College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
| | - Jianhua Yan
- College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, People's Republic of China
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10
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Yuan J, Li Y, Xu H, Qiao Y, He G, Chen H. Engineering improved strategies for spinel cathodes in high-performing zinc-ion batteries. NANOSCALE 2024; 16:1025-1037. [PMID: 38117187 DOI: 10.1039/d3nr05225g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The development of high-performing cathode materials for aqueous zinc-ion batteries (ZIBs) is highly important for the future large-scale energy storage. Owing to the distinctive framework structure, diversity of valences, and high electrochemical activity, spinel materials have been widely investigated and used for aqueous ZIBs. However, the stubborn issues of low electrical conductivity and sluggish kinetics plague their smooth applications in aqueous ZIBs, which stimulates the development of effective strategies to address these issues. This review highlights the recent advances of spinel-based cathode materials that include the configuration of aqueous ZIBs and corresponding reaction mechanisms. Subsequently, the classifications of spinel materials and their properties are also discussed. Then, the review mainly summarizes the effective strategies for elevating their electrochemical performance, including their morphology and structure design, defect engineering, heteroatom doping, and coupling with a conductive support. In the final section, several sound prospects in this fervent field are also proposed for future research and applications.
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Affiliation(s)
- Jingjing Yuan
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Yifan Li
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Hui Xu
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Yifan Qiao
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Guangyu He
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Haiqun Chen
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province 213164, China.
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11
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Zhou S, Sun Y, Gao T, Liao J, Zhao S, Cao G. Enhanced Li + Diffusion and Lattice oxygen Stability by the High Entropy Effect in Disordered-Rocksalt Cathodes. Angew Chem Int Ed Engl 2023; 62:e202311930. [PMID: 37665223 DOI: 10.1002/anie.202311930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/05/2023]
Abstract
Cation-disordered Rocksalt oxides (DRXs) are a promising new class of cathode materials for Li-ion batteries due to their natural abundance, low cost and great electrochemical performance. High entropy strategy in Mn-based DRXs appears to be an effective strategy for improving the rate capability, but it suffers from challenges including capacity degradation. The present paper reports a new group of high entropy DRXs (HE DRX) based on Ni2+ -Nb5+ pair; the structural and chemical evolution upon cycling of DRXs with an increasing transition metal (TM) species are systematically investigated. An explanation is proposed for how the crystal field stability energy determines that HE DRX could exist in single Rocksalt solid solution structures. We further reveal that the charge compensation mechanism in HE DRX is the result of various TM synergistic effect. More importantly, through various in situ and ex situ techniques and theoretical calculation, the effective integration of more TM cation species within the HE DRX framework promotes better Li+ diffusion and improves lattice oxygen stability, consequently increasing capacity upon cycling.
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Affiliation(s)
- Shuyu Zhou
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen Nanshan District, Shenzhen, 518055, China
- School of Materials Science and Engineering, Tsinghua University Haidian District, Beijing, 100084, China
| | - Yuxuan Sun
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen Nanshan District, Shenzhen, 518055, China
| | - Tong Gao
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen Nanshan District, Shenzhen, 518055, China
| | - Junhong Liao
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen Nanshan District, Shenzhen, 518055, China
| | - Shixi Zhao
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen Nanshan District, Shenzhen, 518055, China
| | - Guozhong Cao
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
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12
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Sun YY, Zhang XY, Tang J, Li X, Fu HQ, Xu HG, Mao F, Liu P, Yang HG. Amorphous Oxysulfide Reconstructed from Spinel NiCo 2 S 4 for Efficient Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207965. [PMID: 36965022 DOI: 10.1002/smll.202207965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/20/2023] [Indexed: 06/18/2023]
Abstract
The progress of effective and durable electrocatalysts for oxygen evolution reaction (OER) is urgent, which is essential to promote the overall efficiency of green hydrogen production. To improve the performance of spinel cobalt-based oxides, which serve as promising water oxidation electrocatalysts in alkaline electrolytes, most researches have been concentrated on cations modification. Here, an anionic regulation mechanism is employed to adopt sulfur(S) anion substitution to supplant NiCo2 O4 by NiCo2 S4 , which contributed to an impressive OER performance in alkali. It is revealed that the substitution of S constructs a sub-stable spinel structure that facilitates its reconstruction into active amorphous oxysulfide under OER conditions. More importantly, as the active phase in the actual reaction process, the hetero-anionic amorphous oxysulfide has an appropriately tuned electronic structure and efficient OER electrocatalytic activity. This work demonstrates a promising approach for achieving anion conditioning-based tunable structure reconstruction for robust and easy preparation spinel oxide OER electrocatalysts.
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Affiliation(s)
- Ying Ying Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xin Yu Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jianfang Tang
- China General Nuclear New Energy Holdings Co., Ltd., Beijing, 100071, China
| | - Xiaoxia Li
- China General Nuclear New Energy Holdings Co., Ltd., Beijing, 100071, China
| | - Huai Qin Fu
- Centre for Catalysis and Clean Energy, Gold Coast Campus, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Hao Guan Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Fangxin Mao
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - PengFei Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hua Gui Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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13
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Nam D, Lee G, Kim J. Interface engineering of CeO 2 nanoparticle/Bi 2WO 6 nanosheet nanohybrids with oxygen vacancies for oxygen evolution reactions under alkaline conditions. RSC Adv 2023; 13:8873-8881. [PMID: 36936830 PMCID: PMC10018795 DOI: 10.1039/d2ra08273j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/26/2023] [Indexed: 03/18/2023] Open
Abstract
Because of the interactive combination synergy effect, hetero interface engineering is used way for advancing electrocatalytic activity and durability. In this study, we demonstrate that a CeO2/Bi2WO6 heterostructure is synthesized by a hydrothermal method. Electrochemical measurement results indicate that CeO2/Bi2WO6 displays not only more OER catalytic active sites with an overpotential of 390 mV and a Tafel slope of 117 mV dec-1 but also durability for 10 h (97.57%). Such outstanding characteristics are primarily attributed to (1) the considerable activities by CeO2 nanoparticles uniformly distributed on Bi2WO6 nanosheets and (2) the plentiful Bi-O-Ce and W-O-Ce species playing the role of strong couples between CeO2 nanoparticles and Bi2WO6 nanosheets and oxygen vacancy existence in CeO2 nanoparticles, which can improve the electrochemical active surface area (ECSA) and activity, and enhance the conductivity for OERs. This CeO2/Bi2WO6 consists of the heterojunction engineering that can open a modern method of thinking for high effective OER electrocatalysts.
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Affiliation(s)
- Dukhyun Nam
- School of Chemical Engineering & Materials Science, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul Korea
| | - Geunhyeong Lee
- School of Chemical Engineering & Materials Science, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul Korea
| | - Jooheon Kim
- School of Chemical Engineering & Materials Science, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul Korea
- Department of Advanced Materials Engineering, Chung-Ang University Anseong-si Gyeonggi-do 17546 Republic of Korea
- Department of Intelligent Energy and Industry, Graduate School, Chung-Ang University Seoul 06974 Republic of Korea
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14
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Xu H, Li J, Chu X. Intensifying Hydrogen Spillover for Boosting Electrocatalytic Hydrogen Evolution Reaction. CHEM REC 2023; 23:e202200244. [PMID: 36482015 DOI: 10.1002/tcr.202200244] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/22/2022] [Indexed: 12/13/2022]
Abstract
Hydrogen spillover has attracted increasing interests in the field of electrocatalytic hydrogen evolution reaction (HER) in recent years because of their distinct reaction mechanism and beneficial terms for simultaneously weakening the strong hydrogen adsorption on metal and strengthening the weak hydrogen adsorption on support. By taking advantageous merits of efficient hydrogen transfer, hydrogen spillover-based binary catalysts have been widely investigated, which paves a new way for boosting the development of hydrogen production by water electrolysis. In this paper, we summarize the recent progress of this interesting field by focusing on the advanced strategies for intensifying the hydrogen spillover towards HER. In addition, the challenging issues and some perspective insights in the future development of hydrogen spillover-based electrocatalysts are also systematically discussed.
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Affiliation(s)
- Hui Xu
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province, 213164, China.,College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Junru Li
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, 476000, Henan Province, PR China
| | - Xianxu Chu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, 476000, Henan Province, PR China.,College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
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15
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Zhang Q, Hu Y, Wu H, Zhao X, Wang M, Wang S, Feng R, Chen Q, Song F, Chen M, Liu P. Entropy-Stabilized Multicomponent Porous Spinel Nanowires of NiFeXO 4 (X = Fe, Ni, Al, Mo, Co, Cr) for Efficient and Durable Electrocatalytic Oxygen Evolution Reaction in Alkaline Medium. ACS NANO 2023; 17:1485-1494. [PMID: 36630198 DOI: 10.1021/acsnano.2c10247] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Cost-effective electrochemical water splitting technology hinges on the development of efficient and durable catalysts for oxygen evolution reaction (OER). Spinel oxides (formula: AxB3-xO4) are structurally stable for real applications. Much effort has been devoted to improving the catalytic activity. Here, we report a eutectic dealloying strategy to activate the porous spinel NiFe2O4 nanowires with up to four metal cation substitutions. As-obtained spinel NiFeXO4 (X = Fe, Ni, Al, Mo, Co, Cr) delivers a benchmark current density of 10 mA·cm-2 at an overpotential of only 195 mV, outperforming most spinel phase OER electrocatalysts and comparable to the state-of-the-art NiFe hydroxides. It is stable for over 115 h of electrolysis. Aberration-corrected transmission electron microscopy, high-resolution electron energy loss spectroscopy, and atomic-scale strain mappings reveal that the multivalent cation substitutions result in substantial lattice distortion and significant electronic coupling of metal 3d and O 2p orbitals for increased covalency. Further theoretical calculations suggest that the NiFeXO4 are stabilized by the high configurational entropy, and their synergy favors the absorption of H2O molecules and lowers the adsorption energy barrier of the OOH* intermediate. The improved intrinsic activity together with the highly nanoporous structures contribute to the appealing apparent catalytic performances. The work demonstrates an effective approach for the synthesis of stable multicomponent spinel oxides and highlights the effectiveness of the multication substitution strategy for producing highly durable and active spinel catalysts, which meet multiplexed structure and superior property requirements in practical applications.
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Affiliation(s)
- Qiwen Zhang
- Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Yixuan Hu
- Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Haofei Wu
- Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Xiaoran Zhao
- Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Mingliang Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Sihong Wang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Ruohan Feng
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Qing Chen
- Department of Mechanical and Aerospace Engineering, Department of Chemistry, and The Energy Institute, Hong Kong University of Science and Technology, Kowloon, Hong Kong
| | - Fang Song
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
| | - Mingwei Chen
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland21218, United States
| | - Pan Liu
- Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai200240, People's Republic of China
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16
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Xu H, Yuan J, He G, Chen H. Current and future trends for spinel-type electrocatalysts in electrocatalytic oxygen evolution reaction. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214869] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Yang F, Liang WB, Yang X, Yuan R, Zhuo Y. Identifying 5-Hydroxymethylcytosine without Sequence Specificity Using MOF-Derived MnO xS y Nanoflowers for Boosting Electrochemiluminescence. Anal Chem 2022; 94:16402-16410. [DOI: 10.1021/acs.analchem.2c03667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Fan Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Wen-Bin Liang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Xia Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ying Zhuo
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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18
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Wang H, Sarwar MT, Tian L, Bao W, Yang H. Nanoclay Modulates Cation Occupancy in Manganese Ferrite for Catalytic Antibacterial Treatment. Inorg Chem 2022; 61:17692-17702. [DOI: 10.1021/acs.inorgchem.2c02803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hao Wang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan430074, China
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan430074, China
| | - Muhammad Tariq Sarwar
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan430074, China
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan430074, China
| | - Luyuan Tian
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan430074, China
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan430074, China
| | - Wenxin Bao
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan430074, China
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan430074, China
| | - Huaming Yang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan430074, China
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan430074, China
- Hunan Key Laboratory of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha410083, China
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19
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Ghorui UK, Mondal P, Adhikary B, Mondal A, Sarkar A. Newly designed one‐pot in‐situ synthesis of VS2/rGO nanocomposite to explore its electrochemical behavior towards oxygen electrode reactions. ChemElectroChem 2022. [DOI: 10.1002/celc.202200526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Uday Kumar Ghorui
- IIEST Shibpur: Indian Institute of Engineering Science and Technology Chemistry INDIA
| | - Papri Mondal
- IIEST Shibpur: Indian Institute of Engineering Science and Technology Chemistry INDIA
| | - Bibhutosh Adhikary
- IIEST Shibpur: Indian Institute of Engineering Science and Technology Chemistry INDIA
| | - Anup Mondal
- IIEST Chemistry Botanic Garden 711103 HOWRAH INDIA
| | - Arpita Sarkar
- IIEST Shibpur: Indian Institute of Engineering Science and Technology Chemistry INDIA
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20
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Meng C, Wang Z, Zhang L, Ji X, Chen X, Yu R. Tuning the Mn Dopant To Boost the Hydrogen Evolution Performance of CoP Nanowire Arrays. Inorg Chem 2022; 61:9832-9839. [PMID: 35687832 DOI: 10.1021/acs.inorgchem.2c01436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Because of its advantages such as abundant resources, low cost, simple synthesis, and high electrochemical stability, cobalt phosphide (CoP) is considered as a promising candidate for electrocatalytic hydrogen evolution reaction. Through element doping, the morphology and electronic structure of the catalyst can be tuned, resulting in both the increase of the active site number and the improvement of the intrinsic activity of each site. Herein, we designed and fabricated Mn-doped CoP nanowires with a length of 3 μm, a diameter of 50 nm, and the pores between the grains of 10 nm. As a highly efficient electrocatalyst for alkaline hydrogen evolution, the Mn10-doped CoP/NF (doping amount is about 10 atom %) electrode presented overpotentials of 60 mV @ 10 mA cm-2 and 112 mV @ 100 mA cm-2, improved by 35 and 23%, respectively, compared with CoP/NF. Characterizations indicate that Mn doping increases the electrochemical active area, reduces the impedance, and tunes the electronic structure of the material. Density functional theory calculations also revealed that an appropriate amount of Mn dopant at a suitable location can both react as an active site itself and boost the activity of the surrounding Co sites, delivering favorable H* adsorption and rapid reaction kinetics. This result may not only promote the development of hydrogen evolution reaction catalysts but also encourage explorations of the relationship between the property and fine doping structure.
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Affiliation(s)
- Cheng Meng
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zumin Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing 100190, China
| | - Lijuan Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing 100190, China
| | - Xiaohao Ji
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xiaoyu Chen
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ranbo Yu
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China.,Key Laboratory of Advanced Material Processing and Mold (Ministry of Education), Zhengzhou University, Zhengzhou 450002, China
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