Ruthenium anchored on carbon nanotube electrocatalyst for hydrogen production with enhanced Faradaic efficiency

Abstract Developing efficient and stable electrocatalysts is crucial for the electrochemical production of pure and clean hydrogen. For practical applications, an economical and facile method of producing catalysts for the hydrogen evolution reaction (HER) is essential. Here, we report ruthenium (Ru) nanoparticles uniformly deposited on multi-walled carbon nanotubes (MWCNTs) as an efficient HER catalyst. The catalyst exhibits the small overpotentials of 13 and 17 mV at a current density of 10 mA cm –2 in 0.5 M aq. H 2 SO 4 and 1.0 M aq. KOH, respectively, surpassing the commercial Pt/C (16 mV and 33 mV). Moreover, the catalyst has excellent stability in both media, showing almost “zeroloss” during cycling. In…

• NR
  National Research Foundation

  Award: 2016R1A5A1009405
• UN
  Ulsan National Institute of Science and Technology
• NR
  National Research Foundation of Korea

  Awards: 2016R1A5A1009405, 10Z20130011057, 2014R1A2069102, 2019R1C1C1006650