| 초록 |
Building combined materials with a smart nanostructure, by using various transition metal sulfide, metal selenides and oxides carriers as building blocks, economical noble metal-free catalysts for oxygen evolution reaction (OER). We have synthesized a novel ternary composed of Co3Se4, NiMn2S4@rGO, via a facile and well-controlled solvothermal approach to synthesize Co3Se4/NiMn2S4@rGO with super lattice structure and hollow multi-porous architecture. The results revealed that Co3Se4 nanostructure had been successfully epitaxial deposited onto the surface of NiMn2S4@rGO to form Co3Se4 on NiMn2S4 nanostructures on surface of the rGO. In an alkaline environment, the Co3Se4/NiMn2S4@rGO composite exhibits much better electro catalytic activity and durability towards OER than individual Co3Se4/rGO and NiMn2S4@rGO catalysts, which facilitate the OER kinetics. |
