Journal
RARE METALS
Volume 40, Issue 5, Pages 1040-1047Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-020-01665-1
Keywords
RuP2; N,P-codoped carbon; Hydrogen evolution; Electrocatalyst
Funding
- National Natural Science Foundation of China [21601078]
- Natural Science Foundation of Shandong Province [ZR2016BQ21, ZR2019MB064]
- Development Project of Youth Innovation Team in Shandong Colleges and Universities [2019KJC031]
- Doctoral Fund of Shandong Province [K19LB1201]
- Doctoral Program of Liaocheng University [318051608]
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In this study, a composite catalyst utilizing RuP2 nanoparticles and N,P-codoped carbon was proposed, showing better activity than Pt/C under alkaline conditions and comparable activity under acidic and neutral conditions, with the potential to replace commercial Pt/C for practical hydrogen-related applications.
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 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 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 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. Graphic abstract
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