选择性
金属有机骨架
催化作用
电化学
法拉第效率
金属
材料科学
拉曼光谱
配体(生物化学)
氧化还原
吸收光谱法
无机化学
化学
物理化学
电极
有机化学
冶金
物理
吸附
生物化学
受体
量子力学
光学
作者
Mingxu Sun,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID,NULL AUTHOR_ID
标识
DOI:10.1002/advs.202404931
摘要
Abstract The intensive study of electrochemical CO 2 reduction reaction (CO 2 RR) has resulted in numerous highly selective catalysts, however, most of these still exhibit uncontrollable selectivity. Here, it is reported for the first time the controllable CH 4 /C 2 H 4 selectivity by modulating the electronic states of Cu incorporated in metal‐organic frameworks with different functional ligands, achieving a Faradaic efficiency of 58% for CH 4 on Cu‐incorporated UiO‐66‐H (Ce) composite catalysts, Cu/UiO‐66‐H (Ce) and that of 44% for C 2 H 4 on Cu/UiO‐66‐F (Ce) . In situ measurements of Raman and X‐ray absorption spectra revealed that the electron‐withdrawing ability of the ligand side group controls the product selectivity on MOFs through the modulation of the electronic states of Cu. This work opens new prospects for the development of MOFs as a platform for the tailored tuning of selectivity in CO 2 RR.
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