Potential- and Buffer-Dependent Selectivity for the Conversion of CO₂ to CO by a Cobalt Porphyrin-Peptide Electrocatalyst in Water.

78 − 82 An interesting trend seen in the CPEs of CoMP11-Ac in the presence of CO 2 in all four buffers (CAPS, CHES, MOPS, and NaHCO 3 ) is that the catalyst is not only more selective for CO 2 reduction at the less cathodic potential of −1.2 V but also exhibits similar or higher TON (CO) ( Tables 1 and 2 ).

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