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Layered Ni−Co−P Electrode Synthesized by CV Electrodeposition for Hydrogen Evolution at Large Currents
Author(s) -
Chen Xiaogang,
Zhao Xuan,
Wang Yuanyuan,
Wang Shanshan,
Shang Yuanyuan,
Xu Jie,
Guo Fengmei,
Zhang Yingjiu
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100707
Subject(s) - catalysis , cyclic voltammetry , materials science , electrode , layer (electronics) , chemical engineering , hydrogen , current density , carbon fibers , reversible hydrogen electrode , nanotechnology , electrochemistry , working electrode , composite material , chemistry , composite number , organic chemistry , quantum mechanics , engineering , physics
In recent years, the catalyst efficiency of hydrogen evolution reaction (HER) has been extensively studied. However, the stability of catalysts at high current densities is still a challenge. Herein, layered Ni−Co−P was electrodeposited on carbon fiber paper (CFP) via cyclic voltammetry (CV). This low‐cost electrode exhibits high efficiency and excellent durability for HER in 1 M KOH. To achieve current densities of 10, 100, 500, and 1000 mA cm −2 , Ni−Co−P/CFP required overpotentials of 49, 95, 170, and 295 mV, respectively. The layered structure allows the catalyst to fall off layer by layer. After the outer layer of catalyst falls off, the inner layer of catalyst will be exposed to continue working. After 300 h of HER at 1000 mA cm −2 , Ni−Co−P/CFP still has a regular morphology and high efficiency. Our work shows that layered Ni−Co−P/CFP has excellent prospects for practical applications.