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Liu RJ, Yang LX, Wu JT, Bu HP, Liu HJ, Zeng CL, Fu C. Nanosized VC synthesized by disproportionation reaction in molten salts as a promising anode for lithium/sodium-ion batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhang S, Chen M, Zhao X, Cai J, Yan W, Yen JC, Chen S, Yu Y, Zhang J. Advanced Noncarbon Materials as Catalyst Supports and Non-noble Electrocatalysts for Fuel Cells and Metal–Air Batteries. ELECTROCHEM ENERGY R 2021. [DOI: 10.1007/s41918-020-00085-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Guo L, Liu Y, Teng X, Niu Y, Gong S, Chen Z. Self-Supported Vanadium Carbide by an Electropolymerization-Assisted Method for Efficient Hydrogen Production. CHEMSUSCHEM 2020; 13:3671-3678. [PMID: 32352230 DOI: 10.1002/cssc.202000769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/29/2020] [Indexed: 05/28/2023]
Abstract
Exploring efficient electrodes toward the hydrogen evolution reaction (HER) remains a great challenge for large-scale hydrogen production. Owing to its high earth abundance, low electrical resistivity, and small density, vanadium carbide (VC) is a promising HER electrode candidate but has been rarely explored. In this work, VC nanoparticles encased in nitrogen-doped carbon matrix on carbon cloth (VC@NC/CC) were prepared as a binder-free HER cathode through electropolymerization followed by carbothermal reduction under argon. In the first step of pyrrole electropolymerization, the VO4 3- anions, serving as both vanadium source and supporting electrolyte, were homogeneously incorporated in the positively charged polypyrrole (PPy) framework through coulombic interaction. The electropolymerization was effective for preparation of binder-free metal carbide materials with various polymer monomers as carbon source, which was favorable for the high performance of metal carbide electrodes. During the pyrolysis process, the polymeric hybrids were converted to VC nanoparticles and entrapped in the PPy-derived N-doped carbon matrix. The optimized VC@NC/CC electrode exhibited high catalytic activity and durability in both acidic and alkaline media. The use of VC for efficient HER is remarkable, and such a convenient and versatile electropolymerization-assisted method is appealing for the fabrication of industrially scalable large-area VC electrodes for efficient hydrogen production.
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Affiliation(s)
- Lixia Guo
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Yangyang Liu
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Xue Teng
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Yanli Niu
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Shuaiqi Gong
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Zuofeng Chen
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
- College of Chemistry and Materials Science, Longyan University, Longyan, Fujian, 364012, P.R. China
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Zhang Y, Zheng J, Jing X, Meng C. A strategy for the synthesis of VN@C and VC@C core–shell composites with hierarchically porous structures and large specific surface areas for high performance symmetric supercapacitors. Dalton Trans 2018; 47:8052-8062. [DOI: 10.1039/c8dt01194j] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A novel strategy for the fabrication of VN@C and VC@C was developed by the thermal treatment with H2V3O8@C under N2 and Ar atmospheres. VN@C SSC device exhibited better electrochemical performance than VC@C SSC device.
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Affiliation(s)
- Yifu Zhang
- School of Chemistry
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
| | - Jiqi Zheng
- School of Chemistry
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
| | - Xuyang Jing
- School of Chemistry
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
| | - Changgong Meng
- School of Chemistry
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
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