Spontaneously separated intermetallic Co₃Mo from nanoporous copper as versatile electrocatalysts for highly efficient water splitting.

ABSTRACT: Developing robust nonprecious electrocatalysts towards hydrogen/oxygen evolution reactions is crucial for widespread use of electrochemical water splitting in hydrogen production. Here, we report that intermetallic Co₃Mo spontaneously separated from hierarchical nanoporous copper skeleton shows genuine potential as highly efficient electrocatalysts for alkaline hydrogen/oxygen evolution reactions in virtue of in-situ hydroxylation and electro-oxidation, respectively. The hydroxylated intermetallic Co₃Mo has an optimal hydrogen-binding energy to facilitate adsorption/desorption of hydrogen intermediates for hydrogen molecules. Associated with high electron/ion transport of bicontinuous nanoporous skeleton, nanoporous copper supported Co₃Mo electrodes exhibit

SUBMITTER: Shi H 

PROVIDER: S-EPMC7287083 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature