Nickel-cobalt bimetallic sulfide NiCo₂S₄ nanostructures for a robust hydrogen evolution reaction in acidic media.

ABSTRACT: There are many challenges associated with the fabrication of efficient, inexpensive, durable and very stable nonprecious metal catalysts for the hydrogen evolution reaction (HER). In this study, we have designed a facile strategy by tailoring the concentration of precursors to successfully obtain nickel-cobalt bimetallic sulfide (NiCo₂S₄) using a simple hydrothermal method. The morphology of the newly prepared NiCo₂S₄ comprised a mixture of microparticles and nanorods, which were few microns in dimension. The crystallinity of the composite sample was found to be excellent with a cubic phase. The sample that contained a higher amount of cobalt compared to nickel and produced single-phase NiCo₂S₄ exhibited considerably improve

SUBMITTER: Aftab U 

PROVIDER: S-EPMC9054539 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature