Summary of the controlled potential electrolysis results from Fig. S29 and their analyses via gas and ion chromatography for the gas and liquid phase, respectively, along with the conditions used for the electrolysis of [Co(triphos)(bdt)]+ in the presence of CO2 and a proton source. Electrolyses were performed with 0.5 mM of [Co(triphos)(bdt)]+ in a CH3CN solution containing 0.1 M [nBu4N][PF6] under an atmosphere of CO2.
| Entry | Acid | Time (h) | Acid (M) | Potential (V) vs. Fc0/+ | Charge (C) | H2 | CO | HCOO− | C2O42- | Total FE% (±6) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TON (±0.05) | FE% (±3) | TON (±0.03) | FE% (±2) | TON (±0.03) | FE% (±4) | TON (±0.02) | FE% (±2) | |||||||
| 1 | TFE | 2 | 0.3 | −2.15 | 19.9 | 0.51 | 8 | 0.07 | 1.1 | 3.9 | 67 | 0.9 | 16 | 93 |
| 2 | H2O | 0.3 | −2.15 | 14.9 | 0.20 | 5 | 0.02 | 1 | 4.0 | 93 | 0.2 | 5 | 103 | |
| 3 | 0.3 | −2.60 | 47.4 | 1.03 | 8 | 0.05 | 0.3 | 12.6 | 92 | 0.7 | 5 | 104 | ||
| 4 | 0.6 | −2.15 | 18.0 | 0.37 | 7 | Trace | Trace | 4.9 | 94 | Trace | Trace | 101 | ||
| 5 | 24 | 0.3 | −2.15 | 262 | 5.33 | 8 | 1.57 | 2 | 64.0 | 94 | 1.0 | 1 | 105 | |