We have used scaling kinetics and the concept of kinetic competence to elucidate the role of hemeproteins OmcA and MtrC in iron reduction by Shewanella oneidensis MR-1. Second-order rate constants for OmcA and MtrC were determined by single-turnover experiments. For soluble iron species, a stopped-flow apparatus was used, and for the less reactive iron oxide goethite, a conventional spectrophot...

The reduction of iron ore with carbon-carriers is one the largest sources greenhouse gas emissions in industry, motivating global activities to replace coke-based blast furnace by hydrogen-based direct (HyDR). Iron oxide hydrogen has been widely investigated both experimentally and theoretically. HyDR process includes multiple types chemical reactions, solid state defect-mediated diffusion (of ...