催化作用
材料科学
纳米颗粒
碳化
咪唑酯
金属有机骨架
石墨烯
纳米复合材料
吸附
化学工程
整体
可逆氢电极
纳米材料
纳米技术
比表面积
电极
沸石咪唑盐骨架
电化学
氧化物
物理化学
化学
有机化学
工作电极
工程类
冶金
作者
Yatao Zhang,Kai Li,Miaomiao Chen,Jing Wang,Jindun Liu,Yatao Zhang
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2019-12-20
卷期号:3 (1): 257-263
被引量:56
标识
DOI:10.1021/acsanm.9b01935
摘要
Metal–organic framework (MOF)-derived nanomaterials provide outstanding catalytic activities for CO2 electroreduction due to their large surface area, tunable geometric structures, and controllable pore size. Herein, we develop a Cu/Cu2O nanocomposite loaded on the surface of carbon derived from direct carbonization of two-dimensional cross-like zeolitic imidazolate framework-L coated vertically on graphene oxide (Cu GNC-VL). The as-synthesized catalyst presented an excellent faradaic efficiency of 70.52% and current density of 10.4 mA cm–2 at −0.87 V versus the reversible hydrogen electrode, which benefits from the synergy between CO2 asymmetric chemical adsorption on Cu(111) and favorable kinetics and thermodynamics of C–C coupling on Cu2O(111). This study presents a strategy for the rational design and multiple-pathway modulation of the geometry structure of MOF-derived catalysts.
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