Electrodeposition of Pt-Decorated Ni(OH)₂/CeO₂ Hybrid as Superior Bifunctional Electrocatalyst for Water Splitting.

ABSTRACT: The facile synthesis of highly active and stable bifunctional electrocatalysts to catalyze water splitting is attractive but challenging. Herein, we report the electrodeposition of Pt-decorated Ni(OH)₂/CeO₂ (PNC) hybrid as an efficient and robust bifunctional electrocatalyst. The graphite-supported PNC catalyst delivers superior hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activities over the benchmark Pt/C and RuO₂, respectively. For overall water electrolysis, the PNC hybrid only requires a cell voltage of 1.45 V at 10 mA cm^-2 and sustains over 85 h at 1000 mA cm^-2. The remarkable HER/OER performances are attributed to the superhydrophilicity and multiple effects of PNC, in which Ni(OH)₂ and CeO

SUBMITTER: Liu H 

PROVIDER: S-EPMC7877398 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature