The burning of fossil fuels has led to a rapid increase in the concentration of carbon dioxide(CO2)in the atmosphere,resulting in a serious energy and environmental crisis.Electrocatalytic re-duction of CO2 to value-added chemicals and fuels,driven by renewable electricity,is an effective method for addressing the current depletion of fossil fuels.In this paper,a phosphorus-modified highly dispersible cobalt-nitrogen-carbon(Co-N-C)catalyst was prepared using a"one-pot"method.The catalyst's morphology,element distribution,defect degree,surface e...