摘要
Electrochemical water splitting has long been considered an effective energy conversion technology for trans-ferring intermittent renewable electricity into hydrogen fuel,and the exploration of cost-effective and high-performance electrocatalysts is crucial in making electrolyzed water technology commercially viable.Cobalt phosphide(Co-P)has emerged as a catalyst of high potential owing to its high catalytic activity and durability in water splitting.This paper systematically reviews the latest advances in the development of Co-P-based materials for use in water splitting.The essential effects of P in enhancing the catalytic performance of the hydrogen evolution reaction and oxygen evolution reaction are first outlined.Then,versatile synthesis techniques for Co-P electrocatalysts are summarized,followed by advanced strategies to enhance the electrocatalytic performance of Co-P materials,including heteroatom doping,composite construction,integration with well-conductive sub-strates,and structure control from the viewpoint of experiment.Along with these optimization strategies,the understanding of the inherent mechanism of enhanced catalytic performance is also discussed.Finally,some existing challenges in the development of highly active and stable Co-P-based materials are clarified,and pro-spective directions for prompting the wide commercialization of water electrolysis technology are proposed.
基金
the National Natural Science Foundation of China(21962008)
Yunnan Province Excellent Youth Fund Project(202001AW070005)
Candidate Talents Training Fund of Yunnan Province(2017PY269SQ,2018HB007)
Yunnan Ten Thousand Talents Plan Young&Elite Talents Project(YNWR-QNBJ-2018-346).
作者简介
Mengwei Guo is currently studying for his Ph.D.degree at the Faculty of Metallurgical and Energy Engineering,KUST,China,in the group of Prof.Qibo Zhang.His research mainly focuses on the fabrication of manganese-based electrocatalysts from Deep Eutectic Solvents for electrochemical water splitting;Chaowu Wang is currently a doctoral candidate at the Faculty of Metallurgical and Energy Engineering,KUST,China.He obtained his Master's degree in Chemistry from KUST in 2020.His research focuses on the design and fabrication of precious-metal free electrode materials and their application in electrochemical water oxidation in acid;Corresponding author:Qibo Zhang is currently a professor in the Faculty of Metal-lurgical and Energy Engineering,KUST.He received his PhD degree in 2010 from KUST,and worked as a Lecturer(2010-2012)and an Associated Professor(2012-2014)in KUST.Then,he moved to the University of Leicester in the UK as a postdoctoral researcher from 2014 to 2015.His research focuses on electrochemical fabrication of functional materials from Deep Eutectic Solvents and their applications in energy conversion and storage.Key Laboratory of Ionic Liquids Metallurgy,Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Tech-nology,No.68 WenChang Road,121 Street,Kunming,650093,PR China.E-mail address:qibozhang@kust.edu.cn。
