Low-temperature selective synthesis of metastableα-MoC with electrochemical properties:Electrochemical co-reduction of CO_(2)and MoO_(3)in molten salts

作     者：Longtao Zhu Yinan Zhao Wenhao Yang Hsien-Yi Hsu Ping Peng Fang-Fang Li Longtao Zhu;Yinan Zhao;Wenhao Yang;Hsien-Yi Hsu;Ping Peng;Fang-Fang Li

作者机构：School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Energy and Environment&Department of Materials Science and EngineeringCity University of Hong KongHong Kong 999077China 

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

年 卷 期：2024年第35卷第1期

页      面：310-315页

核心收录：

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

基　　金：the financial support from National Natural Science Foundation of China(Nos.22071070 21971077) 

主　　题：α-MoC CO_(2)electroreduction Molten salt Sulfur doping Hydrogen evolution reaction 

摘      要：Metastable molybdenum carbide(α-MoC),as a catalyst and an excellent support for metal catalysts,has been widely used in thermo/electro-catalytic ***,the selective synthesis ofα-MoC remains a great ***,a simple one-pot synthetic strategy for the selective preparation of metastableα-MoC is proposed by electrochemical co-reduction of CO_(2)and MoO_(3)in a low-temperature eutectic molten *** synthesizedα-MoC shows a reed flower-like *** controlling the electrolysis time and monitoring the phase and morphology of the obtained products,the growth process ofα-MoC is revealed,where the carbon matrix is deposited first followed by the growth ofα-MoC from the carbon ***,by analyzing the composition of the electrolytic products,the formation mechanism forα-MoC is *** addition,through this one-pot synthetic strategy,S-dopedα-MoC is successfully *** functional theory(DFT)calculations reveal that S doping enhanced the HER performance ofα-MoC by facilitating water absorption and dissociation and weakening the bond energy of Mo-H to accelerate H *** present work not only highlights the valuable utilization of CO_(2) but also offers a new perspective on the design and controllable synthesis of metal carbides and their derivatives.