Generalities:
CO2 dissolved in water undergoes hydrolysis to H+ and HCO3-
and 2 H+ and CO3= ions.
1, CO2 + 2 H+ + 2 e- ------> HCOOH (Formic Acid)
2, CO2 + 2 H+ + 2 e- -----> CO + H2O
However, Aqueous Formic Acid can react with a metal (M):
M++ plus 2 (H+ + CO OH-) + 2 e- <----> M(COOH)2 (Metal Formate) + 2 H
And the low-temperature-favored aqueous Shift Reaction
CO + H2O ---> CO2aq + H2 should start a cycle in H2O that
is driven by electrolysis of water that contains CO2.
Fred
