Solution-phase phosphorus substitution for enhanced oxygen evolution reaction in Cu₂WS₄.

ABSTRACT: Transition metal phosphides are among the most promising materials for achieving efficient electrocatalytic performance without the use of rare or expensive noble metals. However, previous research into phosphides for the hydrogen evolution reaction (HER) or oxygen evolution reaction (OER) has focused on high-temperature vapor-phase processes, which are not practical for large-scale applications. Here, we introduce a simple, one-step solution-phase method of phosphide synthesis by modifying Cu₂WS₄ using triphenylphosphine (TPP), which serves to substitute S with P and transform the normally inactive basal plane of Cu₂WS₄ into a defect-rich, activated basal plane. The OER activity was significantly enhanced by phosphorus substitution, with the res

SUBMITTER: Novak TG 

PROVIDER: S-EPMC9059272 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature