Carbon Material Supported Fe7C3@FeO Nanoparticles: High Efficient Catalyst for Carbon Dioxide Reduction with 1-Butene

The reaction of carbon dioxide reduction with 1-butene to obtain CO and 1,3-butadiene (BD) is of great importance, but is challenging, especially achieve its highly selective transformation to BD. Herein, we conducted the first work that to synthesize Fe7C3@FeO nanoparticles supported on activated carbon (AC) which containing acid sites rather than Bronsted acids for the carbon dioxide reduction with 1-butene. It was found this material was very efficient for the reaction; especially the BD selectivity could be improved up to 54 %. In addition, the effects of the carbon surface chemistry on the catalyst composition, structure and morphology as well as its catalytic property were investigated. Furthermore, the surface oxygen-containing groups over AC, which provided acid sites, were proved to have played a key role in anchoring and dispersing Fe7C3@FeO nanoparticles, which resulting the unique catalytic performance of this material.