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Marshall Group

CO2 reduction with the help of cable bacteria

Associate Professor Ian Marshall, Department of Biology, Aarhus University
Senior Researcher Thomas Boesen, Interdisciplinary Nanoscience Center, Aarhus University
Professor Andreas Schramm, Department of Biology, Aarhus University
Professor Lars Peter Nielsen, Department of Bioscience, Aarhus University

A team of four researchers specializing in electro-microbiology at Aarhus University is proposing to study the metabolism and water-oxidizing capabilities of cable bacteria to develop more efficient methods of CO2 reduction. Water (H2O) offers an abundant and easily accessible source of such electrons for the electrochemical reduction of CO2; however, with the disadvantage that current technologies for oxidizing water are inefficient.

The group have dicoverd a novel mechanism in cable bacteria for H2O oxidation in the conductive fibers from the cells’ periplasms. They want to study whether this novel mechanism could inspire a new type of biomimetic catalysts for use in CO2 reduction technologies,” the four researchers explain in their proposal.

Their project aims to investigate how this reaction works in cable bacteria by analyzing the protein structure and function of the catalytic water-splitting site. Through this analysis, the project has the potential to shed light on nature’s unique approach to catalyst design.