Cu2O-templated fabrication of Ni（OH）2·0.75H2O hollow tubes for electrocatalytic oxygen evolution reaction

作     者：Yu Zhang Xueai Teng Zequn Ma Rongming Wang Woon-Ming Lau Aixian Shan Yu Zhang;Xueai Teng;Zequn Ma;Rongming Wang;Woon-Ming Lau;Aixian Shan

作者机构：Beijing Advanced Innovation Center for Materials Genome Engineering & Center for Green Innovation School of Mathematics and Physics University of Science and Technology Beijing Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science School of Mathematics and Physics University of Science and Technology Beijing Institute of Materials Science and Devices School of Materials Science and Engineering Suzhou University of Science and Technology Shunde Innovation School of University of Science and Technology Beijing 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2022年第32卷第5期

页      面：554-560页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Key Research and Development Program of China (No. 2018YFA0703700) the National Natural Science Foundation of China (Nos. 12004031, 12034002 and 51971025) Beijing Natural Science Foundation (Grant No. 2212034) Foshan Talents Special Foundation (BKBS202003) Scientific and Technological Innovation Foundation of Foshan (No. BK22BE005) Foshan Science and Technology Innovation Project (No. 2018/T100363) 

主　　题：Ni(OH)2 hollow tube Cu2O wire Template One-dimensional hollow structure Oxygen evolution reaction 

摘      要：Cu2O is an ideal template material for the preparation of transition metal hydroxide/oxyhydroxides with oxygen evolution reaction（OER） enhanced catalytic performance. Here, inspired by Pearson s principle, Cu2O wires were prepared and used as a sacrificial template to prepare Ni（OH）2·0.75H2O hollow tubes(Ni（OH）2HTs) with highly improved surface roughness. Benefiting from unique structural advantages, the Ni（OH）2HTs showed excellent catalytic activity, rapid kinetics and a long-term stability as the OER catalyst, where an overpotential of only 207mV was required to drive a current density of 10 mA cm-2, an ideal kinetics with a Tafel slope as 79.8 mV dec-1was calculated, and no obvious attenuation in chronoamperometry was discovered after operation for 24 h. This paper provides a novel template-assisted strategy to prepare high-performance transition metal-based OER catalysts possessing hollow and tubular structures.