文献类型：期刊文献

英文题名：Surface and interface engineering of MoNi alloy nanograins bound to Mo-doped NiO nanosheets on 3D graphene foam for high-efficiency water splitting catalysis

作者：Ding, Hualong[1];Xu, Le[1,2];Wen, Congtao[3,4];Zhou, Jiao-Jiao[1,2];Li, Kuang[1];Zhang, Peilin[1];Wang, Linping[1];Wang, Weiwei[1];Wang, Wanqing[1];Xu, Xicheng[1];Ji, Wuxing[1];Yang, Yang[1];Chen, Luyang[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：440

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20221211821950);WOS:【SCI-EXPANDED(收录号:WOS:000820619400004)】；

基金：This work was supported by the National Natural Science Foundation of China (51502092) , the Fundamental Research Funds for the Central Universities (JKD01211601, 222201718002) , the Thousand Talents Program Young Project in China, and the Program for Eastern Scholar at Shanghai Institutions of Higher Learning (TP2015028) .

语种：英文

外文关键词：MoNi alloy; Mo-doped NiO nanosheets; Interface engineering; Hydrogen evolution; Overall water splitting

摘要：Designing high-efficiency and durable non-noble metal catalysts is essential for the large-scale application of electrocatalytic water splitting. Herein, MoNi alloy nanograins are embedded in Mo-doped NiO nanosheets by partial reduction treatment, which vertically grow on three-dimensional (3D) nitrogen-doped graphene foam substrate (MoNi@Mo-NiO@NGF). The hybrid composite demonstrates superb bifunctional electrocatalytic activity towards hydrogen/oxygen evolution reactions. Especially, it possesses the ultra-low hydrogen evolution overpotential of 56 mV at the current density of 10 mA cm(-2) in alkaline condition. The excellent catalytic activity and remarkable stability can be attributed to the optimized surface electronic structure of MoNi alloy by Mo doping, the synergy interface interaction between MoNi nanograins and Mo-NiO substrate, and the high conductivity and corrosion resistance of NGF support. Thus, this work provides a new strategy for the highperformance catalyst towards overall water splitting by the dual regulation of surface and interface.