MoSe2/Co-MOF/NF复合材料的制备及电催化产氧性能
Preparation and electrocatalytic performance of MoSe2/Co-MOF/NF for oxygen evolution reaction
商文静 1邓鑫 1王炳昊 1田翌钦 1李香 1娄永兵 1陈金喜1
作者信息
- 1. 东南大学化学化工学院,南京 211189
- 折叠
摘要
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.
Abstract
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 mate-rial 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.
关键词
电解水/金属有机骨架/过渡金属硒化物/析氧反应Key words
water splitting/metal-organic frameworks/transition metal selenide/oxygen evolution reaction引用本文复制引用
基金项目
江苏省高等学校重点学科发展计划()
江苏省科技成果转化计划(BA2020060)
出版年
2024
NETL
NSTL
万方数据