Controlled synthesis of ultrasmall RuP2 particles on N,P-codoped carbon as superior pH-wide electrocatalyst for hydrogen evolution

• 作者: Ying-Hua Wang Rui-Qing Li Hai-Bo Li Hong-Li Huang Zeng-Jing Guo Hong-Yan Chen Yao Zheng Kong-Gang Qu
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（5）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 1040-1047
• 页数: 8页
• 语种: 英文

摘要

Electrocatalytic hydrogen evolution reaction(HER)is a highly potential strategy to massively produce green hydrogen fuels.However,the employment of costly Pt-based electrocatalyst in the cathode of electrolyzer greatly hampers the development of hydrogen economy.Ruthenium phosphide catalysts have recently drawn wide attention due to the Pt-like activity but relatively lower cost.Herein,a facile strategy was proposed for the con-trolled preparation of the ultrasmall RuP2 nanoparticles on N,P-codoped carbon from common precursors of Ru(Ⅱ)complex and phytic acid.By taking advantage of simple mixing and pyrolysis,the as-synthesized RuP2 nanoparti-cles were uniformly embedded onto the N,P-codoped car-bon nanosheet.The composite catalyst shows better activity than Pt/C for alkaline HER and comparable activity for acidic and neutral HER.The superior activity can be ascribed to the ultrasmall-size and efficient RuP2 together with good mass and charge transfer ability assured by N,P-codoped carbon support.The advantages including low-cost and simple synthesis in this work present an encouraging substitute to replace commercial Pt/C for hydrogen-related practical applications.