| 초록 |
The hydrogen evolution reaction (HER) performance in Co-Mn-based bimetallic oxides has been reported to some extent, but this study focuses on its electrochemical properties depending on the specific structure of Co-Mn bimetallic electrocatalyst and on the amount of active species. The catalysts of four types are prepared by following a solvothermal process and coated on a NiOOH/NF support electrode (NNF). Compared to the CoO and Mn2O3 single particle-assembled electrodes, the CoMn2O4/NNF electrode coated with the flower shaped CoMn2O4 bimetallic particle displays the higher stability in HER. It is demonstrated that the structural characteristic of CoMn2O4 contributes to the excellent stability in a long-term HER test. Thus, the experimental and theoretical findings in this study prove the excellent HER performance of CoMn2O4 particles. |
