Electrode catalyst for CO2 reduction, method for producing CO2 catalyst for CO2 reduction, CO2 reduction electrode and CO2 reduction system

摘要

Problem to be solved: to provide a new catalyst for reducing CO2, which is excellent in the energy efficiency of CO generation, and is efficient and efficient per atom.Catalyst for CO2 reductionConductive porous carbon carrier andA specific nitrogen containing hetero aromatic compound supported on a carbon carrierCobalt ions coordinated with four nitrogen atoms on nitrogen containing heterocyclic rings of nitrogen containing heterocyclic compoundsIncludingThe molar ratio of the complex having co-n4c bonds to total cobalt loading is 0.3 or moreOr for all cobalt supported quantitiesThe molar ratio of the complex with co-n4c bonds is 0.2 or more.The molar ratio of the metal cobalt is 0.5 or less.No selection