Cathodes for electrochemical CO2 reduction to C2+ products

Abstract

This is a focused review of recent highlights in the literature in cathode development for low temperature electrochemical CO2 and CO reduction to multi-carbon (C2+) products. The major goals for the field are to increase Faradaic Efficiency for specific C2+ products, lower cell voltage for industrially relevant current densities and increase cell lifetime. A key to achieving these goals is the rational design of cathodes through increased understanding of structure-selectivity and structure-activity relationships for catalysts and the influence of catalyst binders and gas diffusion layers on the catalyst microenvironment and subsequent performance.