NiFe Hydroxide Lattice Tensile Strain: Enhancement of Adsorption of Oxygenated Intermediates for Efficient Water Oxidation Catalysis

作     者：Daojin Zhou Shiyuan Wang Yin Jia Xuya Xiong Hongbin Yang Song Liu Jialun Tang Junming Zhang Dong Liu Lirong Zheng Yun Kuang Xiaoming Sun Bin Liu 

作者机构：State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 China School of Chemical and Biomedical Engineering Nanyang Technological University Singapore 637459 Singapore) E-mail: Bin Liu College of Energy Beijing University of Chemical Technology Beijing 100029 China Institute for Materials Science and Devices Suzhou University of Science and Technology Suzhou 215009 China State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science & Engineering Beijing Institute of Technology Beijing 100029 China Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China 

出 版 物：《Angewandte Chemie》 

年 卷 期：2018年第131卷第3期

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 

主　　题：Kugelmühle NiFe-Katalysatoren Sauerstoffentwicklung Zugspannung 

摘      要：The binding strength of reactive intermediates with catalytically active sites plays a crucial role in governing catalytic performance of electrocatalysts. NiFe hydroxide offers efficient oxygen evolution reaction (OER) catalysis in alkaline electrolyte, however weak binding of oxygenated intermediates on NiFe hydroxide still badly limits its catalytic activity. Now, a facile ball‐milling method was developed to enhance binding strength of NiFe hydroxide to oxygenated intermediates via generating tensile strain, which reduced the anti‐bonding filling states in the d orbital and thus facilitated oxygenated intermediates adsorption. The NiFe hydroxide with tensile strain increasing after ball‐milling exhibits an OER onset potential as low as 1.44 V (vs. reversible hydrogen electrode) and requires only a 270 mV overpotential to reach a water oxidation current density of 10 mA cm −2 .