文献类型：期刊文献

英文题名：Boosting hydrogen evolution reaction performance via island effect-driven interfacial charge tuning and bubble kinetics optimization on Co/Ni(OH)2 array electrode

作者：Jiang, Runlai Wang, Zheng Ma, Xianguo Wang, Xuyun Song, Hongbing Wang, Hui Li, Zihao Ren, Jianwei Wang, Rongfang

第一作者：Jiang, Runlai

通信作者：Ma, XG[1];Wang, H[2];Li, ZH[2]

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]Univ Pretoria, Dept Chem Engn, Cnr Lynnwood Rd & Roper St, ZA-0028 Hatfield, 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.|贵州理工学院化学工程学院;贵州理工学院;

年份：2026

卷号：203

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20255219789280);Scopus(收录号：2-s2.0-105025443200);WOS:【SCI-EXPANDED(收录号:WOS:001652311600001)】；

基金：The authors would like to express their gratitude for the financial support received from Natural Science Foundation of Guizhou Province (Grants No. QKHJC-ZK [2023] Key 019) , Top Talent Project of Guizhou Provincial Department of Education (Grant No. QJJ [2022] 084) , and Key Laboratory of Energy Chemistry in Guizhou universities (Grants No. QJJ [2022] 035) .

语种：英文

外文关键词："Island-sea" structure; Catalytic activity; Bubble dynamics; Array electrode; Anion exchange membrane water electrolysis

摘要：The fine structural of the fundamental units constituting the array configuration critically influence both the activity and interfacial bubble dynamics of the array electrodes. Here, the Co nano-islands are deposited on the surface of Ni(OH)2 nanosheet-like fundamental units "sea" to fabricate the array electrode (Co/Ni(OH)2/NF) for anion exchange membrane water electrolysis (AEMWE). The transfer of electron at the islands-sea interface characterized by X-ray and ultraviolet photoelectron spectroscopy decreases the adsorption energy of H* intermediate of the hydrogen evolution reaction (HER) calculated by density functional theory, meanwhile, the islands-sea interface promotes the H2 bubble dynamics bubbles verified by the annealing simulation and the bubble statistics on the Co/Ni(OH)2/NF electrode. Consequently, the Co/Ni(OH)2/NF electrode delivered a current density of 100 mA cm-2 for the hydrogen evolution reaction (HER) at a relatively low overpotential of 169 mV. Moreover, it reached 300 mA cm-2 at 1.56 V and 1000 mA cm-2 at 1.77 V, maintaining excellent operational stability for 100 h in the AEMWE system without any noticeable decline in performance.