Anchoring nitrogen-doped Co_(2)P nanoflakes on NiCo_(2)O_(4)nanorod arrays over nickel foam as high-performance 3D electrode for alkaline hydrogen evolution

作     者：Xiaohao Ji Xiaoyu Chen Lijuan Zhang Cheng Meng Yilei He Xing Zhang Zumin Wang Ranbo Yu Xiaohao Ji;Xiaoyu Chen;Lijuan Zhang;Cheng Meng;Yilei He;Xing Zhang;Zumin Wang;Ranbo Yu

作者机构：Department of Physical ChemistrySchool of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing100083China State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of Sciences1 North 2nd StreetZhongguancunHaidian DistrictBeijing100190China 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2023年第8卷第2期

页      面：470-477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：financially supported by the National Key R&D Program of China,China(2018YFA0703503) the National Natural Science Foundation of China,China(No.51872024,51932001,21971245) 

主　　题：Hydrogen evolution reaction(HER) Cobalt phosphide Nonprecious electrocatalyst Hierarchal structure Nitrogen doping 

摘      要：Effective and robust electrocatalysts are mainly based on innovative materials and unique ***,we designed a flakelike cobalt phosphide-based catalyst supporting on NiCo_(2)O_(4)nanorods array,which in-situ grew on the nickel foam(NF)current collector,referring as NCo_(2)P/NiCo_(2)O_(4)/NF *** optimizing the microstructure and electronic structure through 3D hierarchy fabrication and nitrogen doping,the catalyst features with abundant electrochemical surface area,favorable surface wettability,excellent electron transport,as well as tailored d band ***,the as-prepared N-Co_(2)P/NiCo_(2)O_(4)/NF electrode exhibits an impressive HER activity with a low overpotentials of58 mV at 10 mA cm^(-2),a Tafel slop of 75 mV dec^(-1),as well as superior durability in alkaline *** work may provide a new pathway to effectively improve the hydrogen evolution performance of transition metal phosphides and to develop promising electrodes for practical electrocatalysis.