Porous carbon coupled with an interlaced MoP–MoS2 heterojunction hybrid for efficient hydrogen evolution reaction

作     者：Qiusheng Zhou Jianrui Feng Xinwen Peng Linxin Zhong Runcang Sun Qiusheng Zhou;Jianrui Feng;Xinwen Peng;Linxin Zhong;Runcang Sun

作者机构：State Key Laboratory of Pulp and Paper EngineeringSouth China University of TechnologyGuangzhou 510640GuangdongChina College of ChemistryKey Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)Nankai UniversityTianjin 300071China Center for Lignocellulose Science and Engineeringand Liaoning Key Laboratory Pulp and Paper EngineeringDalian Polytechnic UniversityDalian 116034LiaoningChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2020年第29卷第6期

页      面：45-51,I0003页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(31430092,21736003) Guangdong Natural Science Funds for Distinguished Young Scholar(2016A030306027,2017A030306029) Guangdong Natural Science Funds(2017A030313130) Guangzhou science and technology funds(201904010078) State Key Laboratory of Pulp and Paper Engineering and Fundamental Research Funds for the Central Universities。 

主　　题：MoS2 Heterojunction Carbon Electrocatalyst 

摘      要：The design and development of electrocatalysts composed of non-noble-metal catalysts with both large surface area and high electrical conductivities are crucial for the hydrogen evolution reaction(HER).Here,a xylose-based porous carbon is coupled with a MoS2-Mo P heterojunction(MoS2-Mo P/FPC)hybrid and used as a promising catalyst for HER.The hybrid is prepared by immobilizing petal-like MoS2 nanosheets on porous carbon(MoS2/FPC),followed by controlling the phosphidation in Ar/H2 to form MoS2-Mo P/FPC.Red phosphorus provides the P species that can induce the construction of the heterojunction under the reducing atmosphere,along with the generation of a Mo P phase and the splitting of the MoS2 phase.The as-prepared MoS2-Mo P/FPC catalyst offers a low overpotential of 144 mV at a current density of 10 m A cm^-2 and a small Tafel slope of 41 m V dec^-1 for the HER in acidic media,as well as remarkable stability.Apart from the active nature of the hybrid,its outstanding activity is attributed to the MoS2-Mo P heterojunction,and the good charge/mass-transfer ability of porous carbon.This strategy provides a new method to develop and design low-cost and high-performance catalysts for the HER.