碳化的MOF用于电催化还原二氧化碳制备乙烯和乙醇

电化学催化还原二氧化碳是一种有效的能源储存手段。探索具有高乙烯选择性和高产率的高效电催化剂是非常必要的，但仍然具有挑战性。通过对金属有机骨架（Cu-BTC）的简单碳化制备了多孔Cu-Cu₂O/C催化剂，用于高效且选择性地电催化CO₂还原为C₂₊产物。碳化的MOF表现出优异的还原CO₂为C₂₊的性能，在电位为-1.3 V（vs RHE）时，C₂₊的最大法拉第效率（FE）为47.8%，其部分电流密度为4.33 mA·cm^-2。研究表明，较低的碳化温度有助于保留Cu-MOF的形貌，抑制活性金属位点团聚，而多孔特性也能提升其电化学活性面积，进而提高其对CO₂电化学还原为C₂₊产物的性能。

Carbonized metal-organic framework for carbon dioxide reduction to ethylene and ethanol

Electrochemical catalytic reduction of carbon dioxide provides an efficient route for energy storage. Exploring efficient electrocatalysts with high ethylene selectivity and high yields is highly desirable but still challenging. Here, porous Cu-Cu₂O/C catalysts were prepared by simple carbonization of metal-organic framework (Cu-BTC) for efficient and selective electrocatalytic reduction of CO₂ to C₂₊ products. The carbonized MOF showed efficient performance for CO₂ reduction to C₂₊, with a maximum FE of 47.8% and a partial current density of 4.33 mA·cm^-2 at a potential of -1.3 V (vs RHE). The results show that the lower carbonization temperature is helpful to preserve the morphology of Cu-MOF, and the porous properties can also improve the electrochemical active area of Cu-MOF, and thus improve its performance for the electrochemical reduction of CO₂ to C₂₊ products.