Cu-alanine complex-derived CuO electrocatalysts with hierarchical nanostructures for efficient oxygen evolution

作     者：Xinran Li Changli Wang Yang-Yi Liu Huaiguo Xue Huan Pang Qiang Xu Xinran Li;Changli Wang;Yang-Yi Liu;Huaiguo Xue;Huan Pang;Qiang Xu

作者机构：School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou 225009China AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory(ChEM-OlL)National Institute of Advanced Industrial Science and Technology(A1ST)Kyoto 606-8501Japan 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第7期

页      面：2239-2242页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 081705[工学-工业催化] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(NSFC,Nos.U1904215,21671170,21673203,21805192 and 21875207) the Top-notch Academic Programs Project of Jiangsu Higher Education Institutions(TAPP) the Six Talent Plan(No.2015-XCL-030) the Guangdong Basic and Applied Basic Research Foundation(No.2019A1515110735) China Postdoctoral Science Foundation(No.2020M671612) Jiangsu Province Postdoctoral Science Foundation(No.2020Z082) Excellent Doctoral Dissertation of Yangzhou University and Undergraduate Scientific Research Innovation Projects in Jiangsu Province(No.201911117036Z) the Priority Academic Program Development of Jiangsu Higher Education Institutions 

主　　题：Copper complex precursor Copper oxide Hierarchical nanostructure Electrocatalysis Oxygen evolution reaction 

摘      要：Nowadays,Cu-based materials have attracted extensive attention as electrocatalysts,while the inherent reason of the filling of high anti-bonding state of Cu d band(3 d^(10)4 s^(1))makes it difficult to hybridize with O2 p band of oxygen intermediates during the adsorption process of oxygen evolution reaction(OER).To increase the efficiency of Cu-based electrocatalysts,efforts have been made to optimize the electronic structures and to create surface defects and hierarchical nanostructures with more exposed accessible active ***,we report a facile method for preparing CuO electrocatalysts with hierarchical nanostructures using the Cu-alanine complex as a precursor through room-temperature chemical precipitation and subsequent calcination in *** of products obtained at different calcination temperatures reveal the relationship between OER activities and the material characteristics such as specific surface areas,crystal growth orientations,and element *** product obtained at 500℃exhibits the smallest overpotential of 290 mV in 1.0 mol/L KOH for electrocatalyzing *** with various characterizations of CuO electrocatalysts after OER activities,the possible catalytic mechanism and the influence factors of their OER performance are also discussed.