文献类型：期刊文献

英文题名：Adjusting surface electron density of heterostructured NiCo LDH/MXene/ NF material to improve its electrocatalytic performance in hydrogen evolution reaction

作者：Liu, Xinyu Wang, Min Ji, Shan Fu, Qianqian Ma, Xianguo Linkov, Vladimir Wang, Hui

第一作者：Liu, Xinyu

通信作者：Ma, XG[1];Wang, H[2];Ji, S[3]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;[2]Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China;[3]Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China;[4]Univ Western Cape, South African Inst Adv Mat Chem, ZA-7535 Cape Town, South Africa

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;corresponding author), Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China;corresponding author), Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2024

卷号：67

起止页码：192-199

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20241715952452);Scopus(收录号：2-s2.0-85190725899);WOS:【SCI-EXPANDED(收录号:WOS:001262591100001)】；

基金：The authors would like to thank the National Natural Science Foundation of China (51963004) for financially supporting this work.

语种：英文

外文关键词：Hydroxide; Energy storage; Electrolysis; Hydrogen evolution reaction

摘要：Hydrogen production by water electrolysis has attracted much interest in the field of renewable energy storage due to its high efficiency and low environmental impact. Catalytic activity of transition metal-based electrode materials can be effectively improved by adjusting their composition and/or structure. In this study, MXene nanosheets are electrophoretically deposited on foamed nickel (MXene/NF), and further coated by NiCo layered double hydroxides (LDH) nanosheets, also by electrophoresis, to obtain the heterostructured and highly conductive NiCo LDH/MXene/NF electrode, highly active in the hydrogen evolution reaction. Uniform surface distribution of three-dimensional interconnected nanosheets is demonstrated by SEM and TEM. The electrode surface is fully wet within 150 ms, indicating excellent hydrophilicity. The highly conductive NiCo LDH/MXene/NF electrode material exhibits a potential overshoot of 123 mV vs. RHE at a current density of 10 mA cm(-2), with a Tafel slope of +86.6 mV dec(-1). Long-term cyclic testing confirms good stability of the newly prepared electrode material in the hydrogen evolution reaction.