Cu-Fe Prussian analogue synthesized is used as precursor to prepare nano copper catalysts particles through pyrolysis,reduction and iron removal.The influences of pyrolysis temperature(250℃ and 400℃)on the properties and catalytic effect of the catalysts are systematically studied.It is discovered that the lower pyrolysis temperature leads to more carbon and nitrogen residues in CuFe-250,and further leads to different catalytic effects.Compared to CuFe-250,CuFe-400 delivers higher selectivity for ethylene and carbon monoxide,of which the peak Faraday efficiency is 52％for ethylene.Mechanistic analysis shows that the three-phase interface structure affected by the catalyst has a key impact on the selectivity of products during CO2 electrocatalysis.
CO2 electrochemical reductionPrussian analoguecopper-based catalystmulti-carbon products
万方数据
维普
