Rapid Synthesis of Ruthenium-Copper Nanocomposites as High-Performance Bifunctional Electrocatalysts for Electrochemical Water Splitting.

ABSTRACT: Development of high-performance, low-cost catalysts for electrochemical water splitting is key to sustainable hydrogen production. Herein, ultrafast synthesis of carbon-supported ruthenium-copper (RuCu/C) nanocomposites is reported by magnetic induction heating, where the rapid Joule's heating of RuCl₃ and CuCl₂ at 200 A for 10 s produces Ru-Cl residues-decorated Ru nanocrystals dispersed on a CuCl_x scaffold, featuring effective Ru to Cu charge transfer. Among the series, the RuCu/C-3 sample exhibits the best activity in 1 m KOH toward both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), with an overpotential of only -23 and +270 mV to reach 10 mA cm^-2, respectively. When RuCu/C-3 is used as bifunctional catalysts for e

SUBMITTER: Pan D 

PROVIDER: S-EPMC11576254 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature