Direct growth of NiCo2Sx nanostructures on stainless steel with enhanced electrocatalytic activity for methanol oxidation

Abstract

In this report, NiCo₂S_x nanostructures are directly synthesized on stainless steel (SS) substrates by a facile electrodeposition method in addition to a post-vulcanization process. The binder free NiCo₂S_x/SS electrode shows high electrocatalytic activity for methanol oxidation compared with NiS_x and CoS_x. The prepared NiCo₂S_x is a promising non-platinum electrocatalyst for direct methanol fuel cells.