Electrochemical reduction of CO2 over Sn-Nafion® coated electrode for a fuel-cell-like device

Electrochemical reduction of CO2 on SnO2/nitrogen-doped multiwalled carbon nanotubes composites in KHCO3 aqueous solution

“…2(d)) in the potential sweep range from 0 to À 1.4 V and À 1.5 V, respectively. Those oxidation peaks must attribute to the formation of tin oxides [16], which means that the reduction of SnO 2 occurs only when the potentials are lower than À 1.4 V under N 2 atmosphere, and À 1.3 V under CO 2 atmosphere. Therefore, we use potentials higher than À 1.3 V to make sure it is SnO 2 in action in the present study.…”

A DFT study of CO2 electrochemical reduction on Pb(211) and Sn(112)

“…Once the CH* intermediate is formed, sequential hydrogenation by three proton-electron pairs would produce CH 4 . Experimentally, although the dominant product of CO 2 electrochemical reduction is also formic acid, CO and CH 4 have been detected on the Sn electrode [28,46,47].…”

Role of the oxide layer on Sn electrode in electrochemical reduction of CO 2 to formate

“…Noda et al studied the electrochemical reduction of CO 2 at 27 kinds of metal electrodes in 0.1 mol L −1 KHCO 3 aqueous solution, and found that In, Sn, Hg and Pb electrodes showed excellent catalytic activities for reduction of CO 2 to formate and had higher faradaic efficiencies (> 50%) than other metal electrodes [17]. Among all the metal electrodes used for electrochemical reduction of CO 2 to formate, Sn electrode is the most commonly used electrode because of its low cost and relatively low toxicity [18].…”