MoSe2/Co-MOF/NF复合材料的制备及电催化产氧性能

设计高效的催化剂对于电解水制氢至关重要。基于过渡金属硒化物(TMSe)的高催化活性和金属有机骨架(MOFs)的灵活结构，我们提出了一种将MOFs与TMSe复合的策略，在导电基底泡沫镍(NF)上生长的复合材料不仅继承了2种单体的优点，还有效地改善了MOFs导电性差、TMSe易团聚的缺点。MoSe₂/Co-MOF/NF在碱性溶液中展示出优异的电催化产氧活性，在电流密度为10 mA·cm^-2时其过电位仅为242 mV，塔菲尔斜率仅为50.64 mV·dec^-1。此外，该材料在碱性溶液中经1 000圈循环伏安(CV)循环测试和30 h的恒电压电解测试均表现出良好的稳定性。

Preparation and electrocatalytic performance of MoSe2/Co-MOF/NF for oxygen evolution reaction

Designing efficient oxygen evolution reaction (OER) catalysts is crucial for water splitting to produce hydrogen. Based on the catalytic activity of transition metal selenides (TMSe) and the structural characteristics of metal-organic frameworks (MOFs), the work proposed a strategy to compound MOFs and TMSe. The composite material grew on conductive base nickel foam (NF) inherited the advantages of the two materials, and the defects of poor conductivity of MOFs and easy aggregation of TMSe were effectively improved. The MoSe₂/Co -MOF/NF showed excellent electrochemical performance in alkaline solution, and its overpotential was only 242 mV at 10 mA·cm^-2, the Tafel slope was 50.64 mV·dec^-1. In addition, it exhibited good stability in an alkaline solution after 1 000 cyclic voltammetry (CV) cycles and 30 h constant voltage electrolysis test.