文献类型：期刊文献

英文题名：Interface engineering of porous Co(OH)2/La(OH)3@Cu nanowire heterostructures for high efficiency hydrogen evolution and overall water splitting

作者：Zhang, Zhen[1];Wang, Zhiqiang[2,3];Zhang, Hang[1];Zhang, Zikuan[1];Zhou, Jingwei[1];Hou, Ying[1];Liu, Peizhi[1];Xu, Bingshe[1];Zhang, Haixia[1];Guo, Junjie[1]

机构：[1]Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Joint Int Res Lab Precis Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：11

期号：8

起止页码：4355

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20230813629599);WOS:【SCI-EXPANDED(收录号:WOS:000928598300001)】；

基金：This work was supported by the National Natural Science Foundation of China (52001222, 52271064, 52201019, 52075361, and U21A20174); Major Science and Technology Project of Shanxi Province (20201102003); Key Research and Development Projects in Shanxi province (201903D421030); Key National Scientific and Technological Cooperation Projects of Shanxi Province (202104041101008); Program for the Innovative Talents of Higher Education Institutions of Shanxi (PTIT); Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP, 2019L025) and Special Foundation for Youth SanJin scholars.

语种：英文

外文关键词：Cobalt compounds - Efficiency - Electrocatalysts - Electrodes - Electronic structure - Hydrogen - Morphology - Nanowires - Rare earths

摘要：Transition metal hydroxide heterostructures have exhibited great potential to substitute precious metal catalysts for electrocatalytic water splitting due to their tunable electronic structures and boosted catalytic performance. However, exploring heterostructure catalysts composed of transition metal hydroxides and rare earth hydroxides with excellent catalytic behavior and durability still remains a great challenge. Herein, the porous cobalt hydroxide and lanthanum hydroxide heterostructure is constructed on copper nanowires (Co(OH)(2)/La(OH)(3)@Cu NWs, denoted as CH/LH@Cu NWs in the text). Benefitting from the two dimensional morphology, pore-rich feature and substantial heterointerfaces of CH/LH as well as the hierarchical Cu NW substrate, the CH/LH@Cu NW catalyst shows outstanding hydrogen evolution reaction (HER) activities with an ultralow overpotential of 36 mV at 10 mA cm(-2), together with excellent alkaline oxygen evolution reaction (OER) performance with an overpotential of 273 mV at 100 mA cm(-2). Using the CH/LH@Cu NW catalyst as the anode and cathode, the electrolytic cell requires only 1.56 V to attain the current density of 20 mA cm(-2) together with a preferable long-term stability. This work offers new understanding into the development of high-efficiency water splitting electrocatalysts via heterostructural and interfacial strategies.