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Abstract The total analysis of gaseous and soluble products was carried out in the electrochemical reduction of CO2 (current density 5 mA cm−2) on various electrode metals. HCOO− was predominantly produced at Cd, In, Sn, and Pb cathodes. Ag and Au principally gave CO. CH4 was formed in an appreciable amount at Cu cathode.
Hori et al. (1985) studied this question.