电催化剂
酞菁
金属有机骨架
非阻塞I/O
材料科学
催化作用
电导率
导电体
电流密度
金属
化学工程
选择性
电化学
电极
纳米技术
无机化学
化学
有机化学
物理化学
冶金
复合材料
吸附
工程类
物理
量子力学
作者
Jun‐Dong Yi,Duan‐Hui Si,Ruikuan Xie,Qi Yin,Meng-Di Zhang,Qiao Wu,Guoliang Chai,Yuan‐Biao Huang,Rong Cao
标识
DOI:10.1002/anie.202104564
摘要
Abstract The electrocatalytic conversion of CO 2 into value‐added chemicals is a promising approach to realize a carbon‐energy balance. However, low current density still limits the application of the CO 2 electroreduction reaction (CO 2 RR). Metal–organic frameworks (MOFs) are one class of promising alternatives for the CO 2 RR due to their periodically arranged isolated metal active sites. However, the poor conductivity of traditional MOFs usually results in a low current density in CO 2 RR. We have prepared conductive two‐dimensional (2D) phthalocyanine‐based MOF (NiPc‐NiO 4 ) nanosheets linked by nickel‐catecholate, which can be employed as highly efficient electrocatalysts for the CO 2 RR to CO. The obtained NiPc‐NiO 4 has a good conductivity and exhibited a very high selectivity of 98.4 % toward CO production and a large CO partial current density of 34.5 mA cm −2 , outperforming the reported MOF catalysts. This work highlights the potential of conductive crystalline frameworks in electrocatalysis.
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