Unstable Ni leaching in MOF-derived PtNi-C catalyst with improved performance for alcohols fuel electro-oxidation

作     者：Bo Fang Zong Liu Yufei Bao Ligang Feng Bo Fang;Zong Liu;Yufei Bao;Ligang Feng

作者机构：School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou 225002China 

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

年 卷 期：2020年第31卷第9期

页      面：2259-2262页

核心收录：

学科分类：0808[工学-电气工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the National Natural Science Foundation of China(Nos.21603041,21972124) the Priority Academic Program Development of Jiangsu Higher Education Institution the support of the Foundation of Excellent Doctoral Dissertation of Yangzhou University 

主　　题：Methanol oxidation Fuel cells Electrocatalyst PtNi Metal-organic frameworks 

摘      要：Significance of unstable species leaching was for the first time demonstrated on MOF-derived catalysts by taking PtNi-C as an example,that was instructive for the relevant catalyst fabrication and performance ***-C catalyst was synthesized by combining Pt nanoparticles with Ni-BTC after annealing in the tube furnace and the unstable Ni species can be easily leached out in nitric acid,and the stable PtNi nanoparticles trapped in the graphite carbon layer were *** greatly improved catalytic ability for alcohol fuels oxidation was verified by comparing the fresh and acid leached catalysts in terms of the high peak current density,specific and mass activity and rapid charge transfer kinetics and high catalytic *** current work guides the importance of unstable assistant promoter removal for the MOF derived catalysts.