Hierarchically Porous SnO Coupled Organic Carbon for CO Electroreduction.

Converting CO into value-added chemicals or fuels by electrochemical CO reduction reaction (CO RR) has aroused great interest, whereas designing highly active and selective electrocatalysts is still a challenge. Herein, a novel kind of electrochemical catalyst composed with SnO and organic carbon (OC), named as SnO /OC, was facilely constructed for CO RR. The obtained SnO /OC exhibits both high faradaic efficiency for formate (∼75 %) and carbon products (∼95 %) as well as excellent stability. High surface area with hierarchically porous structure and the homogeneous formation of Sn-O-C linkages in SnO /OC jointly promote the adsorption and activation of CO , as well as fast transport of reactants and products.