Recent Progress on Bismuth-based Nanomaterials for Electrocatalytic Carbon Dioxide Reduction

Due to the burning of fossil fuels, the level of carbon dioxide(CO2) in the atmosphere gradually rises, leading to serious greenhouse effect and environmental problems. Electrocatalytic reduction of CO2 is currently an efficient way to convert CO2 to value-added products. Bismuth(Bi)-based nanomaterials have raised great interests due to their excellent activity and high selectivity to electrocatalytic CO2 reduction. In this review, the fundamental principles of electrochemical CO2 reduction reaction(CO2RR) are introduced at first. Moreover, the recent development of Bi-based electrocatalytic materials including Bi with various nanostructures(nanoparticle, nanosheet, etc.), Bi-based compounds(Bi oxide, bimetal chalcogenide, etc.), and Bi/C nanocomposites are summarized. In the end, the future prospects and challenges of electrocatalysts for CO2 reduction are discussed.