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

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 ha...

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Bibliographic Details
Published in:Rare metals 2021-05, Vol.40 (5), p.1040-1047
Main Authors: Wang, Ying-Hua, Li, Rui-Qing, Li, Hai-Bo, Huang, Hong-Li, Guo, Zeng-Jing, Chen, Hong-Yan, Zheng, Yao, Qu, Kong-Gang
Format: Article
Language:English
Subjects:
Biomaterials
Carbon
Catalysts
Charge transfer
Chemistry and Materials Science
Electrocatalysts
Energy
Hydrogen
Hydrogen evolution reactions
Hydrogen fuels
Hydrogen-based energy
Materials Engineering
Materials Science
Metallic Materials
Nanoparticles
Nanoscale Science and Technology
Original Article
Phosphides
Physical Chemistry
Phytic acid
Platinum
Pyrolysis
Ruthenium
Synthesis
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Summary: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 controlled preparation of the ultrasmall RuP 2 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 RuP 2 nanoparticles were uniformly embedded onto the N,P-codoped carbon 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 RuP 2 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. Graphic abstract
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-020-01665-1