Electrocatalytic reduction of carbon dioxide to carbon monoxide

The PCS group has contributed to a recent publication that appeared in Nature Communications.

Recep Kas assisted researchers of the catalysis and surface chemistry group of Marc Koper in Leiden in discovering that a cobalt protoporphyrin immobilized on a pyrolytic graphite electrode reduces carbon dioxide in an aqueous acidic solution at relatively low overpotential (0.5V), with an efficiency and selectivity comparable to the best porphyrin-based electrocatalyst in the literature.

While carbon monoxide is the main reduction product, we also observed methane as by-product.

The mechanism of the transformation of CO2 is described and we suggest strategies for designing improved catalysts.

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