Integration of biocompatible hydrogen evolution catalyst developed from metal-mix solutions with microbial electrosynthesis.

Microbial conversion of CO to multi-carbon compounds such as acetate and butyrate is a promising valorisation technique. For those reactions, the electrochemical supply of hydrogen to the biocatalyst is a viable approach. Earlier we have shown that trace metals from microbial growth media spontaneously form in situ electro-catalysts for hydrogen evolution.