Electron-transfer enhanced MoO2-Ni heterostructures as a highly efficient pH-universal catalyst for hydrogen evolution

作     者：Benzhi Wang Hexiu Huang Meilin Huang Puxuan Yan Tayirjan Taylor Isimjan Xiulin Yang Benzhi Wang;Hexiu Huang;Meilin Huang;Puxuan Yan;Tayirjan Taylor Isimjan;Xiulin Yang

作者机构：Guangxi Key Laboratory of Low Carbon Energy MaterialsSchool of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilin 541004China Saudi Arabia Basic Industries Corporation(SABIC)at King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2020年第63卷第6期

页      面：841-849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] 

基　　金：supported by the National Natural Science Foundation of China(21965005) Natural Science Foundation of Guangxi Province(2018GXNSFAA294077 and 2018GXNSFAA281220) Project of High-Level Talents of Guangxi(F-KA18015 and 2018ZD004) 

主　　题：MoO2-Ni pH-universal electron-transfer hydrogen evolution electrolysis 

摘      要：Hydrogen is one of the most promising energy carriers to replace fossil fuels and electrolyzing water to produce hydrogen is a very effective ***,designing highly active and stable non-precious metal hydrogen evolution electrocatalysts that can be used in universal pH is a huge ***,we have reported a simple strategy to develop a highly active and durable non-precious MoO2-Ni electrocatalyst for hydrogen evolution reaction(HER)in a wide pH *** MoO2-Ni catalyst exhibits a superior electrocatalytic performance with low overpotentials of 46,69,and 84 mV to reach-10 mA cm-2 in 1.0 M KOH,0.5 M H2SO4,and 1.0 M PBS electrolytes,*** the same time,the catalyst also shows outstanding stability over a wide pH *** is particularly noted that the catalytic performance of MoO2-Ni in alkaline solution is comparable to the highest performing catalysts *** outstanding HER performance is mainly attributed to the collective effect of the rational morphological design,electronic structure engineering,and strong interfacial coupling between MoO2 and Ni in *** work provides a viable method for the synthesis of inexpensive and efficient HER electrocatalysts for the use in wide pH ranges.