A synergy establishment by metal-organic framework and carbon quantum dots to enhance electrochemical water oxidation

作     者：Qiuxiang Mou Xuan Wang Zhenhang Xu Pnur Zul Erlei Li Pingping Zhao Xinghai Liu Houbin Li Gongzhen Cheng Qiuxiang Mou;Xuan Wang;Zhenhang Xu;Pnur Zul;Erlei Li;Pingping Zhao;Xinghai Liu;Houbin Li;Gongzhen Cheng

作者机构：School of Printing and PackagingWuhan UniversityWuhan 430072China College of Chemistry and Molecular SciencesWuhan UniversityWuhan 430072China 

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

年 卷 期：2022年第33卷第1期

页      面：562-566页

核心收录：

学科分类：081702[工学-化学工艺] 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：financially supported by the Fundamental Research Funds for the Central Universities(No.2042021kf0077) Start-up funds for provincial and municipal"double first-class"construction special talents(No.600460001) China postdoctoral Science Foundation(No.2017M612496) 

主　　题：Metal-organic framework Carbon quantum dots Electrochemical impedance spectroscopy Oxygen evolution reaction Stability 

摘      要：Available online Integrating transition metal centered MOFs with conductive materials is a feasible route to enhance electron transfer efficiency of ***,a composite porous structure CQDs_(10)@NiFe-MOF-A was fabricated via introducing carbon quantum dots(CQDs)into porous *** CQDs would make partial loss of lattice in MOF during its growth,leading to the composite building block with the coexistance of crystalline region and amorphous *** calcining treatment would produce an ultrathin protective layer as well as some lattice *** synergy effect between NiFe ions effectively regulated electronic structure of metal active sites,and successful grafting of CQDs to NiFe-MOF significantly improved electrical *** expected,the catalyst exhibited outstanding OER performances with high mass activity of 91.6 A/g at overpotential of 300 mV and robust durability of 10,000 cycles in 1 mol/L KOH,which outperformed that of noble catalyst IrO_(2)of 25.2 A/*** strategy paves a feasible and effective avenue for the non-noble metal catalysts.