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Wu Q, Li F, Sheng H, Qi Y, Yuan J, Bi H, Li W, Xie E, Lan W. In Situ Fabrication of Hierarchical CuO@CoNi-LDH Composite Structures for High-Performance Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38669688 DOI: 10.1021/acsami.4c01533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Layered double hydroxide (LDH) materials, despite their high theoretical capacity, exhibit significant performance degradation with increasing load due to their low conductivity. Simultaneously achieving both high capacity and high rate performance is challenging. Herein, we fabricated vertically aligned CuO nanowires in situ on the copper foam (CF) substrate by alkali-etching combined with the annealing process. Using this as a skeleton, electrochemical deposition technology was used to grow the amorphous α-phase CoNi-LDH nanosheets on its surface. Thanks to the high specific surface area of the CuO skeleton, ultrahigh loading (̃16.36 mg cm-2) was obtained in the fabricated CF/CuO@CoNi-LDH electrode with the cactus-like hierarchical structure, which enhanced the charge transfer and ion diffusion dynamics. The CF/CuO@CoNi-LDH electrode achieved a good combination of high areal capacitance (33.5 F cm-2) and high rate performance (61% capacitance retention as the current density increases 50 times). The assembled asymmetric supercapacitor device demonstrated a maximum potential window of 0-1.6 V and an energy density of 1.7 mWh cm-2 at a power density of 4 mW cm-2. This work provides a feasible strategy for the design and fabrication of high-mass-loading LDH composites for electrochemical energy storage applications.
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Affiliation(s)
- Qiyuan Wu
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Fengfeng Li
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Hongwei Sheng
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Yifeng Qi
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Jiao Yuan
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- School of Physics and Electronic Information Engineering, Qinghai Normal University, Xining, Qinghai 810008, People's Republic of China
| | - Huasheng Bi
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Wenquan Li
- School of Physics and Electronic Information Engineering, Qinghai Normal University, Xining, Qinghai 810008, People's Republic of China
| | - Erqing Xie
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Wei Lan
- School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
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2
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Lee J, Lee J, Jin X, Kim H, Hwang SJ. Atomically-Thin Holey 2D Nanosheets of Defect-Engineered MoN-Mo 5 N 6 Composites as Effective Hybridization Matrices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306781. [PMID: 37806758 DOI: 10.1002/smll.202306781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/27/2023] [Indexed: 10/10/2023]
Abstract
The defect engineering of inorganic solids has received significant attention because of its high efficacy in optimizing energy-related functionalities. Consequently, this approach is effectively leveraged in the present study to synthesize atomically-thin holey 2D nanosheets of a MoN-Mo5 N6 composite. This is achieved by controlled nitridation of assembled MoS2 monolayers, which induced sequential cation/anion migration and a gradual decrease in the Mo valency. Precise control of the interlayer distance of the MoS2 monolayers via assembly with various tetraalkylammonium ions is found to be crucial for synthesizing sub-nanometer-thick holey MoN-Mo5 N6 nanosheets with a tunable anion/cation vacancy content. The holey MoN-Mo5 N6 nanosheets are employed as efficient immobilization matrices for Pt single atoms to achieve high electrocatalytic mass activity, decent durability, and low overpotential for the hydrogen evolution reaction (HER). In situ/ex situ spectroscopy and density functional theory (DFT) calculations reveal that the presence of cation-deficient Mo5 N6 domain is crucial for enhancing the interfacial interactions between the conductive molybdenum nitride substrate and Pt single atoms, leading to enhanced electron injection efficiency and electrochemical stability. The beneficial effects of the Pt-immobilizing holey MoN-Mo5 N6 nanosheets are associated with enhanced electronic coupling, resulting in improvements in HER kinetics and interfacial charge transfer.
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Affiliation(s)
- Jihyeong Lee
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Junsoo Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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3
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Sun Y, Lee J, Kwon NH, Lim J, Jin X, Gogotsi Y, Hwang SJ. Enhancing Hydrogen Evolution Reaction Activity of Palladium Catalyst by Immobilization on MXene Nanosheets. ACS NANO 2024; 18:6243-6255. [PMID: 38345597 DOI: 10.1021/acsnano.3c09640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Efficient catalysts with minimal content of catalytically active noble metals are essential for the transition to the clean hydrogen economy. Catalyst supports that can immobilize and stabilize catalytic nanoparticles and facilitate the supply of electrons and reactants to the catalysts are needed. Being hydrophilic and more conductive compared with carbons, MXenes have shown promise as catalyst supports. However, the controlled assembly of their 2D sheets creates a challenge. This study established a lattice engineering approach to regulate the assembly of exfoliated Ti3C2Tx MXene nanosheets with guest cations of various sizes. The enlargement of guest cations led to a decreased interlayer interaction of MXene lamellae and increased surface accessibility, allowing intercalation of Pd nanoparticles. Stabilization of Pd nanoparticles between interlayer-expanded MXene nanosheets improved their electrocatalytic activity. The Pd-immobilized K+-intercalated MXene nanosheets (PdKMX) demonstrated exceptional electrocatalytic performance for the hydrogen evolution reaction with the lowest overpotential of 72 mV (@10 mA cm-2) and the highest turnover frequency of 1.122 s-1 (@ an overpotential of 100 mV), which were superior to those of the state-of-the-art Pd nanoparticle-based electrocatalysts. Weakening of the interlayer interaction during self-assembly with K+ ions led to fewer layers in lamellae and expansion of the MXene in the c direction during Pd anchoring, providing numerous surface-active sites and promoting mass transport. In situ spectroscopic analysis suggests that the effective interfacial electron injection from the Pd nanoparticles strongly immobilized on interlayer-expanded PdKMX may be responsible for the improved electrocatalytic performance.
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Affiliation(s)
- Yiyang Sun
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jihyeong Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Nam Hee Kwon
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Joohyun Lim
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Multidimensional Genomics Research Center, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Yury Gogotsi
- A. J. Drexel Nanomaterials Institute, and Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
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Zhao B, Li R, Men Q, Yan Z, Lv H, Wu L, Che R. Transformation of 2D Flakes to 3D Hollow Bowls: Matthew Effect Enables Defects to Prevail in Electromagnetic Wave Absorption of Hollow rGO Bowls. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2208135. [PMID: 37587762 DOI: 10.1002/smll.202208135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 07/26/2023] [Indexed: 08/18/2023]
Abstract
High-efficiency electromagnetic (EM) wave (EMW)-absorbing materials have attracted extensive scientific and technical interest. Although identifying the dominant EM loss mechanism in dielectric-loss materials is indispensable, it is challenging due to a complex synergism between dipole/interfacial polarization and conduction loss. Modulation of defects and microstructures can be a possible approach to determine the dominant EM loss mechanism and realize high-efficiency absorption. Herein, 2D reduced graphene oxide (rGO) flakes are integrated into a 3D hollow bowl-like structure, which increases defect sites (i.e., oxygen vacancy and lattice defect) and reduces the stacked thickness of rGO. Despite their lower stacked thicknesses, the hollow rGO bowls with more defects exhibit lower conductivities but higher permittivities. Accompanied by the transformation from 2D flakes to 3D hollow bowls, the dominant EM loss mechanism of rGO transforms from conduction loss to defect-induced polarization. Furthermore, the defect engineering and structural design endow rGO with well-matched impedance and strong EMW-absorbing capacity. A minimum reflection loss of -41.6 dB (1.3 mm) and an effective absorption bandwidth of 4.8 GHz (1.5 mm) is achieved at a filler loading of 5 wt%. This study will provide meaningful insights into the development of materials with superior EMW-absorbing performances via defect engineering and structural design.
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Affiliation(s)
- Biao Zhao
- School of Microelectronics, Fudan University, Shanghai, 200433, China
| | - Ruosong Li
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Qiaoqiao Men
- Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, 450046, China
| | - Zhikai Yan
- Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, 450046, China
| | - Hualiang Lv
- Institute of Optoelectronics, Fudan University, Shanghai, 200433, China
| | - Le Wu
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Renchao Che
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai, 200438, China
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Li C, Wang X, Ma D, Yan Y, Huo P, Yang Q. Interlayer Nano-Dots Induced High-Rate Supercapacitors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301398. [PMID: 37271896 PMCID: PMC10427355 DOI: 10.1002/advs.202301398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/13/2023] [Indexed: 06/06/2023]
Abstract
The fast OH- transfer between hydroxide layers is the key to enhancing the charge storage efficiency of layered double hydroxides (LDH)-based supercapacitors (SCs). Constructing interlayer reactive sites in LDH is much expected but still a huge challenge. In this work, CdS nano-dots (NDs) are introduced to interlayers of ultra-thin NiFe-LDH (denoted CdSinter. -NiFe-LDH), promoting the interlayer ions flow for higher redox activity. The excellent performance is not only due to the enlarged layer spacing (from 0.70 to 0.81 nm) but also stems from anchored interlayer reactive units and the undamaged original layered structure of LDH, which contribute to the improvement of OH- diffusion coefficient (1.6 × 10-8 cm2 s-1 ) and electrochemical active area (601 mF cm-2 ) better than that of CdS NDs on the surface of NiFe-LDH (2.1 × 10-9 cm2 s-1 and 350 mF cm-2 ). The champion CdSinter. -NiFe-LDH electrode displays high capacitance of 3330.0 F g-1 at 1 A g-1 and excellent retention capacitance of 90.9% at 10 A g-1 , which is better than the NiFe-LDH with CdS NDs on the surface (1966.6 F g-1 ). Moreover, the assembled asymmetric SCs (ASC) device demonstrate an outstanding energy density/power density (121.56 Wh kg-1 /754.5 W kg-1 ).
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Affiliation(s)
- Chunyan Li
- Research Center of Fluid Machinery Engineering and TechnologyJiangsu UniversityZhenjiang212013P. R. China
- School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang212013P. R. China
| | - Xinkun Wang
- Research Center of Fluid Machinery Engineering and TechnologyJiangsu UniversityZhenjiang212013P. R. China
| | - Dongge Ma
- Department of ChemistryCollege of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijing100048P. R. China
| | - Yan Yan
- School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang212013P. R. China
| | - Pengwei Huo
- School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang212013P. R. China
| | - Qingjun Yang
- School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang212013P. R. China
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6
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Li Q, Wu X, Mu S, He C, Ren X, Luo X, Adeli M, Han X, Ma L, Cheng C. Microenvironment Restruction of Emerging 2D Materials and their Roles in Therapeutic and Diagnostic Nano-Bio-Platforms. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207759. [PMID: 37129318 PMCID: PMC10369261 DOI: 10.1002/advs.202207759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/30/2023] [Indexed: 05/03/2023]
Abstract
Engineering advanced therapeutic and diagnostic nano-bio-platforms (NBPFs) have emerged as rapidly-developed pathways against a wide range of challenges in antitumor, antipathogen, tissue regeneration, bioimaging, and biosensing applications. Emerged 2D materials have attracted extensive scientific interest as fundamental building blocks or nanostructures among material scientists, chemists, biologists, and doctors due to their advantageous physicochemical and biological properties. This timely review provides a comprehensive summary of creating advanced NBPFs via emerging 2D materials (2D-NBPFs) with unique insights into the corresponding molecularly restructured microenvironments and biofunctionalities. First, it is focused on an up-to-date overview of the synthetic strategies for designing 2D-NBPFs with a cross-comparison of their advantages and disadvantages. After that, the recent key achievements are summarized in tuning the biofunctionalities of 2D-NBPFs via molecularly programmed microenvironments, including physiological stability, biocompatibility, bio-adhesiveness, specific binding to pathogens, broad-spectrum pathogen inhibitors, stimuli-responsive systems, and enzyme-mimetics. Moreover, the representative therapeutic and diagnostic applications of 2D-NBPFs are also discussed with detailed disclosure of their critical design principles and parameters. Finally, current challenges and future research directions are also discussed. Overall, this review will provide cutting-edge and multidisciplinary guidance for accelerating future developments and therapeutic/diagnostic applications of 2D-NBPFs.
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Affiliation(s)
- Qian Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Xizheng Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Shengdong Mu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Chao He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Xiancheng Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Xianglin Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Mohsen Adeli
- Department of Organic Chemistry, Faculty of Chemistry, Lorestan University, Khorramabad, 68137-17133, Iran
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Xianglong Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lang Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
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7
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He C, Yang L, Peng X, Liu S, Wang J, Dong C, Du D, Li L, Bu L, Huang X. Alkylamine-Confined Thickness-Tunable Synthesis of Co(OH) 2-CoO Nanosheets toward Oxygen Evolution Catalysis. ACS NANO 2023; 17:5861-5870. [PMID: 36920478 DOI: 10.1021/acsnano.2c12735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Thickness regulation of transition metal hydroxides/oxides nanosheets with superior catalytic properties represents a promising strategy to enhance catalytic performance, but it remains an enormous challenge to achieve precise control, especially when it comes to the ultrathin limit (several atomic layers). In this work, a facile strategy of alkylamine-confined growth is proposed for the synthesis of thickness-tunable metal hydroxide/oxide nanosheets. Specifically, ultrathin cobalt hydroxide and cobaltous oxide hybrid (Co(OH)2-CoO) nanosheets (Co-O NSs) with a thickness in the range of 2-6 nm (5-13 atomic layers) are synthesized by using alkylamines with different carbon chain lengths as the ligand to modulate vertical coordination ability. Co-O NSs with a thickness of 2 nm (Co-O NSs-2 nm) exhibit excellent oxygen evolution reaction (OER) performance with an overpotential of 278 mV at 10 mA/cm2. The maximized number of active sites including oxygen vacancies, optimal adsorption strength, and the highest electrical conductivity are considered as the potential factors contributing to the excellent OER performance of Co-O NSs-2 nm. This work holds great significance for the precise thickness-tunable synthesis of transition metal layered hydroxide nanosheets with modulated and improved catalytic performance.
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Affiliation(s)
- Chuansheng He
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Linlin Yang
- Department of Nanoscience, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Xiaohui Peng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shangheng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jia Wang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Chengyuan Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Delin Du
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Leigang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lingzheng Bu
- College of Energy, Xiamen University, Xiamen 361102, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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8
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Yu S, Choi G, Choy JH. Multifunctional Layered Double Hydroxides for Drug Delivery and Imaging. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1102. [PMID: 36985996 PMCID: PMC10058705 DOI: 10.3390/nano13061102] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Two-dimensional nanomaterials, particularly layered double hydroxides (LDHs), have been widely applied in the biomedical field owing to their biocompatibility, biodegradability, controllable drug release/loading ability, and enhanced cellular permeability. Since the first study analyzing intercalative LDHs in 1999, numerous studies have investigated their biomedical applications, including drug delivery and imaging; recent research has focused on the design and development of multifunctional LDHs. This review summarizes the synthetic strategies and in-vivo and in-vitro therapeutic actions and targeting properties of single-function LDH-based nanohybrids and recently reported (from 2019 to 2023) multifunctional systems developed for drug delivery and/or bio-imaging.
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Affiliation(s)
- Seungjin Yu
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea
| | - Goeun Choi
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea
- College of Science and Technology, Dankook University, Cheonan 31116, Republic of Korea
| | - Jin-Ho Choy
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea
- Division of Natural Sciences, The National Academy of Sciences, Seoul 06579, Republic of Korea
- Department of Pre-Medical Course, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea
- International Research Frontier Initiative (IRFI), Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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9
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Xu J, Bian C, Sun J, Liu D, Wang X, Xue Z, Meng X, Wu H. Heterostructure tailoring of carbon nanotubes grown on prismatic NiCo clusters for high-efficiency electromagnetic absorption. J Colloid Interface Sci 2023; 634:185-194. [PMID: 36542964 DOI: 10.1016/j.jcis.2022.12.037] [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: 10/26/2022] [Revised: 11/24/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
The employment of electromagnetic (EM) absorbers integrating elaborate architecture, enhanced microwave absorption and multifunctional features remains a formidable challenge in practical applications including military stealth and incoming 5G electronic information era. Herein, a novel microwave absorber has been fabricated by in-situ growing carbon nanotubes (CNTs) on the prismatic nickel-cobalt (NiCo) clusters derived from Ni-Co layered double hydroxides (NiCo-LDH) via catalytic carbonization of ethyl acetate. The NiCo/CNTs composites with highly porous texture could provide sufficient open space to balance the impedance and introduce magnetic loss mechanism. Accordingly, the absorbers achieved remarkable EM absorption performance with a minimum reflection loss of -46.2 dB at 1.5 mm and broad bandwidth of 5.8 GHz owing to synergistic magnetic-dielectric effects and distinct structural merits. The NiCo/CNTs absorber manifests superior radar wave attenuation by the radar cross section simulation and density functional theory (DFT) was also performed to elucidate the potential mechanisms of the heterostructure formation and performance enhancement in the NiCo/CNTs composites. This work is expected to provide new insights or inspirations to modulate EM properties by rationally designing heterostructure for the elimination of severe EM pollution.
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Affiliation(s)
- Jiajun Xu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Chao Bian
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Jiayu Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Dong Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China.
| | - Xiaobin Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Zhiwei Xue
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Xiuxia Meng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Hongjing Wu
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China.
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10
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Sarigamala KK, Struck A, Shukla S, Saxena S. Heterophase Interfacial Hybrid//Graphene Nanoscrolls based High Performance Lithium-Ion Hybrid Supercapacitor. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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11
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Wang J, Kong X, Yang M, Xiong W, Li Z, Zhou H, Waterhouse GIN, Xu SM, Yan H, Song YF, Duan H, Zhao Y. Superstable Mineralization of Heavy Metals Using Low-Cost Layered Double Hydroxide Nanosheets: Toward Water Remediation and Soil Fertility Enhancement. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jikang Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xianggui Kong
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Mufei Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wenbo Xiong
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zixian Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hua Zhou
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | | | - Si-Min Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hong Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yu-Fei Song
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yufei Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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12
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Sudare T, Yamaguchi T, Ueda M, Shiiba H, Tanaka H, Tipplook M, Hayashi F, Teshima K. Critical role of water structure around interlayer ions for ion storage in layered double hydroxides. Nat Commun 2022; 13:6448. [PMID: 36307449 DOI: 10.1038/s41467-022-34124-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 10/12/2022] [Indexed: 11/09/2022] Open
Abstract
Water-containing layered materials have found various applications such as water purification and energy storage. The highly structured water molecules around ions under the confinement between the layers determine the ion storage ability. Yet, the relationship between the configuration of interlayer ions and water structure in high ion storage layered materials is elusive. Herein, using layered double hydroxides, we demonstrate that the water structure is sensitive to the filling density of ions in the interlayer space and governs the ion storage. For ion storage of dilute nitrate ions, a 24% decrease in the filling density increases the nitrate storage capacity by 300%. Quartz crystal microbalance with dissipation monitoring studies, combined with multimodal ex situ experiments and theoretical calculations, reveal that the decreasing filling density effectively facilitates the 2D hydrogen-bond networking structure in water around interlayer nitrate ions along with minimal change in the layered structure, leading to the high storage capacity.
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Affiliation(s)
- Tomohito Sudare
- Research Initiative for Supra-Materials (RISM), Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan.
| | - Takuro Yamaguchi
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan
| | - Mizuki Ueda
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan
| | - Hiromasa Shiiba
- Research Initiative for Supra-Materials (RISM), Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan
| | - Hideki Tanaka
- Research Initiative for Supra-Materials (RISM), Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan
| | - Mongkol Tipplook
- Research Initiative for Supra-Materials (RISM), Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan
| | - Fumitaka Hayashi
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan
| | - Katsuya Teshima
- Research Initiative for Supra-Materials (RISM), Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan. .,Department of Materials Chemistry, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan.
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13
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Zhao X, Li H, Zhang M, Pan W, Luo Z, Sun X. Hierarchical Nanocages Assembled by NiCo-Layered Double Hydroxide Nanosheets for a High-Performance Hybrid Supercapacitor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34781-34792. [PMID: 35867900 DOI: 10.1021/acsami.2c08903] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Layered double hydroxides (LDHs) have attracted broad attention as cathode materials for hybrid supercapacitors (HSCs) because of their ultrahigh theoretical specific capacitance, high compositional flexibility, and adjustable interlayer spacing. However, as reported, specific capacitance of LDHs is still far below the theoretical value, inspiring countless efforts to these ongoing challenges. Herein, a hierarchical nanocage structure assembled by NiCo-LDH nanosheet arrays was rationally designed and fabricated via a facile solvothermal method assisted by the ZIF-67 template. The transformation from the ZIF-67 template to this hollow structure is achieved by a synergistic effect involving the Kirkendall effect and the Ostwald ripening process. The enlarged specific surface area co-occurred with broadened interlayer spacing of LDH nanosheets by finely increasing the Ni concentration, leading to synchronous improvement of electron/ion transfer kinetics. The optimized NiCo-LDH-210 electrode displays a maximum specific capacitance of 2203.6 F g-1 at 2 A g-1, excellent rate capability, and satisfactory cycling stability because of the highly exposed active sites and shortened ion transport paths provided by vertically aligned LDH nanosheets together with the cavity. Furthermore, the assembled HSC device achieves a superior energy density of 57.3 Wh kg-1 with prominent cycling stability. Impressively, the design concept of complex construction derived from metal-organic frameworks (MOF) derivatives shows tremendous potential for use in energy storage systems.
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Affiliation(s)
- Xiang Zhao
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
| | - Hui Li
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
| | - Mu Zhang
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- Foshan Graduate School of Northeastern University, Foshan 528311, PR China
| | - Wei Pan
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, P.R. China
| | - Xudong Sun
- Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, PR China
- Foshan Graduate School of Northeastern University, Foshan 528311, PR China
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14
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Lai T, Wang J, Xiong W, Wang H, Yang M, Li T, Kong X, Zou X, Zhao Y, O'Hare D, Song YF. Photocatalytic CO2 reduction and environmental remediation using mineralization of toxic metal cations products. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Liu Y, Wang M, Zhang B, Yan D, Xiang X. Mediating the Oxidizing Capability of Surface-Bound Hydroxyl Radicals Produced by Photoelectrochemical Water Oxidation to Convert Glycerol into Dihydroxyacetone. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01319] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yang Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Miao Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Bing Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Dongpeng Yan
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - Xu Xiang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
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16
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Piao H, Choi G, Jin X, Hwang SJ, Song YJ, Cho SP, Choy JH. Monolayer Graphitic Carbon Nitride as Metal-Free Catalyst with Enhanced Performance in Photo- and Electro-Catalysis. NANO-MICRO LETTERS 2022; 14:55. [PMID: 35113289 PMCID: PMC8814173 DOI: 10.1007/s40820-022-00794-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/28/2021] [Indexed: 05/09/2023]
Abstract
The g-C3N4 monolayer in the perfect 2D limit was successfully realized, for the first time, by the well-defined chemical strategy based on the bottom-up process. The most striking evidence was made from Cs-high resolution transmission electron microscopy measurements by observing directly the atomic structure of g-C3N4 unit cell, which was again supported by the corresponding high resolution transmission electron microscopy image simulation results. We demonstrated that the newly prepared g-C3N4 monolayer showed outstanding photocatalytic activity for H2O2 generation as well as excellent electrocatalytic activity for oxygen reduction reaction. The exfoliation of bulk graphitic carbon nitride (g-C3N4) into monolayer has been intensively studied to induce maximum surface area for fundamental studies, but ended in failure to realize chemically and physically well-defined monolayer of g-C3N4 mostly due to the difficulty in reducing the layer thickness down to an atomic level. It has, therefore, remained as a challenging issue in two-dimensional (2D) chemistry and physics communities. In this study, an "atomic monolayer of g-C3N4 with perfect two-dimensional limit" was successfully prepared by the chemically well-defined two-step routes. The atomically resolved monolayer of g-C3N4 was also confirmed by spectroscopic and microscopic analyses. In addition, the experimental Cs-HRTEM image was collected, for the first time, which was in excellent agreement with the theoretically simulated; the evidence of monolayer of g-C3N4 in the perfect 2D limit becomes now clear from the HRTEM image of orderly hexagonal symmetry with a cavity formed by encirclement of three adjacent heptazine units. Compared to bulk g-C3N4, the present g-C3N4 monolayer showed significantly higher photocatalytic generation of H2O2 and H2, and electrocatalytic oxygen reduction reaction. In addition, its photocatalytic efficiency for H2O2 production was found to be the best for any known g-C3N4 nanomaterials, underscoring the remarkable advantage of monolayer formation in optimizing the catalyst performance of g-C3N4.
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Affiliation(s)
- Huiyan Piao
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
| | - Goeun Choi
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- College of Science and Technology, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Young Jae Song
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 440-746, Republic of Korea
- Department of Nano Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, Republic of Korea
| | - Sung-Pyo Cho
- National Center for Inter-University Research Facilities (NCIRF), Seoul National University, Seoul, 08826, Republic of Korea.
- Graphene Research Center, Advanced Institute of Convergence Technology, Suwon, 16229, Republic of Korea.
| | - Jin-Ho Choy
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.
- Department of Pre-Medical Course, College of Medicine, Dankook University, Cheonan, 31116, Republic of Korea.
- Tokyo Tech World Research Hub Initiative (WRHI), Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
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17
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Kwon NH, Jin X, Kim S, Kim H, Hwang S. Multilayer Conductive Hybrid Nanosheets as Versatile Hybridization Matrices for Optimizing the Defect Structure, Structural Ordering, and Energy-Functionality of Nanostructured Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103042. [PMID: 34761539 PMCID: PMC8805630 DOI: 10.1002/advs.202103042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/10/2021] [Indexed: 05/16/2023]
Abstract
The hybridization of conductive nanospecies has garnered significant research interest because of its high efficacy in improving the diverse functionalities of nanostructured materials. In this study, a novel synthetic strategy is developed to optimize the defect structure, structural ordering, and energy-related functionality of nanostructured-materials by employing a multilayer multicomponent two-dimenstional (2D) graphene/metal oxide/graphene nanosheet (NS) as a versatile hybridization matrix. The hybridization of the robust trilayer, polydiallyldiammonium (PDDA)-anchored reduced-graphene oxide (prGO)/metal oxide/prGO NS effectively enhance the structural ordering and porosity of the hybridized MoS2 /MnO2 NS through suppression of defect formation and tight stacking. In comparison with monolayer rGO/RuO2 NS-based homologs, the 2D superlattice trilayer prGO/RuO2 /prGO NS hybrids deliver better functionalities as a hydrogen evolution electrocatalyst and as a supercapacitor electrode, demonstrating the merits of hybridization with multilayer NSs. The advantages of using multilayer multicomponent conductive NSs as hybridization matrices arise from the enhancement of charge and mass transport through the layer flattening or defect suppression of the hybridized NSs and the increase in porosity, as evidenced by density functional theory calculations. Finally, the universal utility of multilayer NSs is confirmed by investigating the strong effect of the stacking order on the electrocatalytic functionality of MoS2 /rGO/RuO2 films fabricated through layer-by-layer deposition.
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Affiliation(s)
- Nam Hee Kwon
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Se‐Jun Kim
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST)Daehak‐ro 291Yuseong‐guDaejeon34141Republic of Korea
| | - Hyungjun Kim
- Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST)Daehak‐ro 291Yuseong‐guDaejeon34141Republic of Korea
| | - Seong‐Ju Hwang
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
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18
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Zhang J, Sun N, Yin B, Su Y, Ji S, Huan Y, Wei T. Regulating Ni 3+ contents by a cobalt doping strategy in ternary Ni xCo 3−xAl 1-LDH nanoflowers for high-performance charge storage. Dalton Trans 2022; 51:16957-16963. [DOI: 10.1039/d2dt02893j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Ni1Co2Al1-LDH electrode prepared by hydrothermal method delivers a high specific capacitance (728 C g−1 at 1 A g−1) and excellent capacitance retention (93.18% of initial capacitance at 30 A g−1 after 10 000 cycles).
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Affiliation(s)
- Jiaqi Zhang
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Ningqiang Sun
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Baoyi Yin
- School of Microelectronics, Dalian University of Technology, Dalian, 116024, China
| | - Yuanhui Su
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Shuaijing Ji
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yu Huan
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Tao Wei
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
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19
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Jin X, Lee T, Tamakloe W, Patil SB, Soon A, Kang Y, Hwang S. In Situ Defect Engineering Route to Optimize the Cationic Redox Activity of Layered Double Hydroxide Nanosheet via Strong Electronic Coupling with Holey Substrate. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103368. [PMID: 34713617 PMCID: PMC8728845 DOI: 10.1002/advs.202103368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/15/2021] [Indexed: 06/13/2023]
Abstract
A defect engineering of inorganic solids garners great deal of research activities because of its high efficacy to optimize diverse energy-related functionalities of nanostructured materials. In this study, a novel in situ defect engineering route to maximize electrocatalytic redox activity of inorganic nanosheet is developed by using holey nanostructured substrate with strong interfacial electronic coupling. Density functional theory calculations and in situ spectroscopic analyses confirm that efficient interfacial charge transfer takes place between holey TiN and Ni-Fe-layered double hydroxide (LDH), leading to the feedback formation of nitrogen vacancies and a maximization of cation redox activity. The holey TiN-LDH nanohybrid is found to exhibit a superior functionality as an oxygen electrocatalyst and electrode for Li-O2 batteries compared to its non-holey homologues. The great impact of hybridization-driven vacancy introduction on the electrochemical performance originates from an efficient electrochemical activation of both Fe and Ni ions during electrocatalytic process, a reinforcement of interfacial electronic coupling, an increase in electrochemical active sites, and an improvement in electrocatalysis/charge-transfer kinetics.
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Affiliation(s)
- Xiaoyan Jin
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Taehun Lee
- Center for Artificial Synesthesia Materials DiscoveryDepartment of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Wilson Tamakloe
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Sharad B. Patil
- Department of Chemistry and NanoscienceCollege of Natural SciencesEwha Womans UniversitySeoul03760Republic of Korea
| | - Aloysius Soon
- Center for Artificial Synesthesia Materials DiscoveryDepartment of Materials Science and EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - Yong‐Mook Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
- KU‐KIST Graduate School of Converging Science and TechnologyKorea UniversitySeoul02841Republic of Korea
| | - Seong‐Ju Hwang
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
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20
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Kim M, Park YH, Kim MH, Jin X, Hwang SJ. Complementary combinative strategy of defect engineering and graphene coupling for efficient energy-functional materials. Chem Asian J 2021; 16:3937-3943. [PMID: 34585836 DOI: 10.1002/asia.202101013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/28/2021] [Indexed: 11/11/2022]
Abstract
The synergetic combination of defect engineering and graphene coupling enables to develop an effective way of exploring efficient bifunctional electrocatalyst/electrode materials. Defect-engineered amorphous MoO2 -reduced graphene oxide (rGO) nanohybrid was synthesized by soft-chemical reduction of K2 MoO4 in graphene oxide colloids. Mo K-edge X-ray absorption spectroscopy clearly demonstrates the rutile-type local atomic structure of amorphous MoO2 with significant oxygen vacancies and intimate electronic coupling with rGO. The defect-introduced MoO2 -rGO nanohybrid shows excellent bifunctionality as electrocatalyst for hydrogen evolution reaction and electrode for sodium-ion batteries, which are superior to those of crystalline MoO2 -rGO homologue. The beneficial effect of simultaneous defect control and rGO coupling can be ascribed to the provision of oxygen vacancies acting as active sites, the increase of electrical conductivity, and the improvement of reaction kinetics.
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Affiliation(s)
- Minji Kim
- Department of Chemistry and Nanoscience, College of Natural Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Yeon Hu Park
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Myung Hwa Kim
- Department of Chemistry and Nanoscience, College of Natural Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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21
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Xu J, Li Z, Chen D, Yang S, Zheng K, Ruan J, Wu Y, Zhang H, Chen J, Xie F, Jin Y, Wang N, Meng H. Porous Indium Tin Oxide-Supported NiFe LDH as a Highly Active Electrocatalyst in the Oxygen Evolution Reaction and Flexible Zinc-Air Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:48774-48783. [PMID: 34628856 DOI: 10.1021/acsami.1c14469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The oxygen evolution reaction (OER) is crucial for hydrogen production from water splitting and rechargeable metal-air batteries. However, the four-electron mechanism results in slow reaction kinetics, which needed to be accelerated by efficient catalysts. Herein, a hybrid catalyst of novel nickel-iron layered double hydroxide (NiFe LDH) on porous indium tin oxide (ITO) is presented to lower the overpotential of the OER. The as-prepared NiFe LDH@ITO catalyst showed superior catalytic activity toward the OER with an overpotential of only 240 mV at a current density of 10 mA/cm2. The catalyst also offered high stability with almost no activity decay after more than 200 h of chronopotentiometry test. Furthermore, the applications of NiFe LDH@ITO in (flexible) rechargeable zinc-air batteries exhibited a better performance than commercial RuO2 and can remain stable in cycling tests. It is supposed that the superior catalytic behavior originates from the ITO conductive framework, which prevents the agglomeration and facilitates the electron transfer during the OER process.
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Affiliation(s)
- Jinchang Xu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Zilong Li
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Di Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Sanxi Yang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Kaiwei Zheng
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jiaxi Ruan
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yinlong Wu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Hao Zhang
- Instrumental Analysis & Research Center, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Jian Chen
- Instrumental Analysis & Research Center, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Fangyan Xie
- Instrumental Analysis & Research Center, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Yanshuo Jin
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Nan Wang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Hui Meng
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
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