Facilitating alkaline hydrogen evolution reaction on the hetero-interfaced Ru/RuO2 through Pt single atoms doping

Abstract Exploring an active and cost-effective electrocatalyst alternative to carbon-supported platinum nanoparticles for alkaline hydrogen evolution reaction (HER) have remained elusive to date. Here, we report a catalyst based on platinum single atoms (SAs) doped into the hetero-interfaced Ru/RuO 2 support (referred to as Pt-Ru/RuO 2 ), which features a low HER overpotential, an excellent stability and a distinctly enhanced cost-based activity compared to commercial Pt/C and Ru/C in 1 M KOH. Advanced physico-chemical characterizations disclose that the sluggish water dissociation is accelerated by RuO 2 while Pt SAs and the metallic Ru facilitate the subsequent H* combination. Theoretical calculations…

• EC
  European Commission

  Award: 101071111
• NN
  National Natural Science Foundation of China

  Awards: 22179098, 52302302
• BF
  Bundesministerium für Bildung und Forschung

  Award: 03SF0613D
• PU
  Pohang University of Science and Technology
• FR
  Fundamental Research Funds for the Central Universities
• HE
  HORIZON EUROPE European Innovation Council

  Awards: 101071111 -ANEMEL, 101071111