Cobalt phosphide nanoparticles supported within network of N-doped carbon nanotubes as a multifunctional and scalable electrocatalyst for water splitting

作     者：Dongxu Yang Wenqiang Hou Yingjiong Lu Wanli Zhang Yuanfu Chen Dongxu Yang;Wenqiang Hou;Yingjiong Lu;Wanli Zhang;Yuanfu Chen

作者机构：School of Electronic Science and Engineeringand State Key Laboratory of Electronic Thin Films and Integrated DevicesUniversity of Electronic Science and Technology of ChinaChengdu 610054SichuanChina Department of PhysicsSchool of Scienceand Everest Research InstituteTibet UniversityLhasa 850000Xizang(Tibet)Autonomous RegionChina School of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049ShaanxiChina 

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

年 卷 期：2021年第30卷第1期

页      面：130-138,I0005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：supported by the University of Electronic Science and Technology of China (Grant No. Y03019023601016208) the National Natural Science Foundation of China (Grant Nos. 21773024, 51372033) National High Technology Research and Development Program of China (Grant No. 2015AA034202)。 

主　　题：Obalt phosphides Carbon nanotube Nitrogen doping Large-scale synthesis Overall water splitting 

摘      要：In order to realize industrial production of hydrogen through water splitting,it is essential to develop a cost-efficient and scalable approach to synthesize nonprecious electrocatalysts with sufficiently high activity and stability to replace commercial noble-metal-based electrocatalysts.Herein we synthesize cobalt phosphide nanoparticles dispersed within nitrogen-doped carbon nanotube network(CP@NCNT) via scalable spray drying and thermal treatments.As a multifunctional electrocatalyst,the CP@NCNT hybrid delivers outstanding activity for HER(in both acidic and alkaline electrolytes),OER and overall water splitting.Remarkably,it shows an ultra-low overpotental of 94 mV to obtain 10 mA cm-2 in HER.It also demonstrates outstanding activity in overall water splitting,requiring only 1.619 V to deliver 10 mA cm-2with more than 72 h’ long-term stability.The combination of notable performance,multi-functionality and highly scalable spray-drying synthesis method enables this material as a novel and cost-efficient transition metal-based electrocatalysts for overall water splitting.