Ultrafine Co₃O₄ nanolayer-shelled CoWP nanowire array: a bifunctional electrocatalyst for overall water splitting.

ABSTRACT: The development of bifunctional electrocatalysts based on highly efficient non-noble metals is pivotal for overall water splitting. Here, a composite electrode of Co₃O₄@CoWP is synthesized, where an ultrathin layer composed of Co₃O₄ nanoparticles is grown on CoWP nanowires supported on a carbon cloth (CC). The Co₃O₄@CoWP/CC electrode exhibits excellent electrocatalytic activity and improved kinetics towards both the oxygen and hydrogen evolution reactions (OER and HER). The Co₃O₄@CoWP/CC electrode achieves a current density of 10 mA cm^-2 at a low overpotential of 269 mV for the OER and -10 mA cm^-2 at 118 mV for the HER in 1.0 M KOH solution. The voltage applied to a two-electrode w

SUBMITTER: Zhang L 

PROVIDER: S-EPMC9055948 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature