Controlled phase evolution from Cu_0.33Co_0.67S₂ to Cu₃Co₆S₈ hexagonal nanosheets as oxygen evolution reaction catalysts.

ABSTRACT: Developing cheap and efficient transition metal-based catalysts for the oxygen evolution reaction (OER) plays the key role in large-scale implementation of hydrogen production. However, there is still a lack of effective ways to tune the catalysts performance for the OER reaction from the aspect of structure design and element modulation simultaneously. Herein, a novel Cu_0.33Co_0.67S₂ hexagonal nanosheet has been synthesized through the coprecipitation reaction followed by subsequent vapor sulfidation. Simply mixed with carbon nanotubes (CNTs) during electrode preparation, this Cu_0.33Co_0.67S₂ exhibits an overpotential of 284 mV vs. RHE at a current density of 10 mA cm^-2 in 1.0 M KOH. The improved OER perform

SUBMITTER: Feng J 

PROVIDER: S-EPMC9062190 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature