Understanding activity and selectivity of metal-nitrogen-doped carbon catalysts for electrochemical reduction of CO₂.

ABSTRACT: Direct electrochemical reduction of CO₂ to fuels and chemicals using renewable electricity has attracted significant attention partly due to the fundamental challenges related to reactivity and selectivity, and partly due to its importance for industrial CO₂-consuming gas diffusion cathodes. Here, we present advances in the understanding of trends in the CO₂ to CO electrocatalysis of metal- and nitrogen-doped porous carbons containing catalytically active M-N _x moieties (M = Mn, Fe, Co, Ni, Cu). We investigate their intrinsic catalytic reactivity, CO turnover frequencies, CO faradaic efficiencies and demonstrate that Fe-N-C and especially Ni-N-C catalysts rival Au- and Ag-based catalysts. We model the catalytically active M-N _x moietie

SUBMITTER: Ju W 

PROVIDER: S-EPMC5643516 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature