Table 1 Representative reaction pathways of CO2RR in neutral pH buffer electrolyte condition with thermodynamic standard potentials
From: Heterogeneous catalysts for catalytic CO2 conversion into value-added chemicals
| Reaction in neutral pH buffer electrolyte | E0 (V vs RHE) | |
|---|---|---|
| Cathode reaction | (CO2RR) CO2 + H2O + 2e− → CO + 2OH− | − 0.10 |
| (CO2RR) CO2 + 2H2O + 2e− → HCOOH +2OH− | − 0.02 | |
| (CO2RR) CO2 + 5H2O + 6e− → CH3OH + 6OH− | 0.03 | |
| (CO2RR) CO2 + 6H2O + 8e− → CH4 + 8OH− | 0.17 | |
| (CO2RR) 2CO2 + 8H2O + 12e− → C2H4 + 12OH− | 0.08 | |
| (HER) 2H2O + 2e− → H2 + 2OH− | 0 | |
| Anode reaction | (OER) 2H2O → O2 + 4H+ + 4e− | 1.229 |