A novel electron carrier molecule based on a viologen derivative for visible light-driven CO2 reduction to formic acid with the system of zinc porphyrin and formate dehydrogenase

To develop a visible-light driven conversion of CO2 to formic acid system consisting of water-soluble zinc porphyrin, an electron carrier and formate dehydrogenase (FDH) in the presence of triethanolamine (TEOA) as an electron donor, 1,1'-diaminoethyl-4,4'-bipyridinium salt (DAV) as a novel electron carrier with high affinity for FDH was applied.