Abstract
“Cracking” water is of great significance to develop (HER) catalysts with high catalytic performance for non-platinum hydrogen evolution under alkaline conditions. In this paper, we prepared a ruthenium nanoparticle catalyst on oxidized carbon nanotubes (Ru@OCNT) support. Electrochemical tests showed that Ru@OCNT-700 exhibited excellent catalytic performance and good stability under alkaline conditions (1 M KOH). When the current density reached 10 mA cm−2, it only needed an overpotential of 13.2 mV. The Tafel slope was 45.4 mV/dec−1. Due to its excellent HER performance, Ru@OCNT electrocatalyst could have broad applicability in large-scale hydrogen production.
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