A co-coordination strategy to realize janus-type bimetallic phosphide as highly efficient and durable bifunctional catalyst for water splitting

作     者：Bin Wang Yuanfu Chen Qi Wu Yingjiong Lu Xiaojuan Zhang Xinqiang Wang Bo Yu DongXu Yang Wanli Zhang Bin Wang;Yuanfu Chen;Qi Wu;Yingjiong Lu;Xiaojuan Zhang;Xinqiang Wang;Bo Yu;DongXu Yang;Wanli Zhang

作者机构：State Key Laboratory of Electronic Thin Films and Integrated DevicesUniversity of Electronic Science and Technology of ChinaChengdu 610054China School of Scienceand Institute of Oxygen SupplyTibet UniversityLhasa 850000China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第74卷第15期

页      面：11-20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：the National Natural Science Foundation of China(No.21773024) the Sichuan Science and Technology Program(No.20YYJC3786) the Reformation and Development Funds for Local Region Universities from China Government in 2020(No.ZCKJ 2020-11) the Natural Science Foundation of the Tibet Autonomous Region(No.2016ZR-TU-10) 

主　　题：Bimetallic phosphide Bifunctional catalyst Overall water splitting DFT calculation 

摘      要：In this work,a Janus-type dual-ligand metal-organic frameworks derived bimetallic(Fe,Co)P nanoparticles embedded carbon nanotube(CNT)skeleton(DLD-Fe Co P@CNT)is presented and synthesized via a facileco-coordination synthesis*** DLD-Fe Co P@CNT hybrid shows much better performances for OER and HER with much lower Tafel slope of 39.6(57.1)m V dec-1,an overpotential of 286(166)m V@10 m A cm^(-2)and better stability for OER(HER)in 1 M *** both cathode and anode for water splitting,it requires only a low voltage of 1.67 V to obtain 10 mA cm^(-2)with nearly 100%faradaic efficiency,which is close to Pt/C//RuO_(2)*** functional theory calculations based on the bimetallic phosphide(Fe_(0.3)Co_(0.7)P)model reveal that,compared with the monometallic Fe P or Co P,the enhanced catalytic activities of Fe_(0.3)Co_(0.7)P is mainly manifested in its free energy of H adsorption(GH*)closer to zero,larger binding strength for H2O and higher electrical conductivity.