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Small Business Innovation Research/Small Business Tech Transfer

Long-Life MEAs and Catalysts for PEM Electrolyzers/Fuel Cells

Completed Technology Project

Project Description

Long-Life MEAs and Catalysts for PEM Electrolyzers/Fuel Cells
Nanostructured Thin Films (NSTF), used as substrates for catalysts, have proven to be highly active for oxygen reduction in fuel cells. This improvement in activity is expected to transfer to electrolyzer technology as the NSTF substrate layer, with a ruthenium oxide based catalyst, is used for oxygen evolution. Slow anode kinetics in electrolysis provide the bulk of the cell overpotential. An increase in anode catalyst activity and decrease in mass-transfer effects, as seen with the thin NSTF catalyst layers and ruthenium oxide based catalysts, would mean an increase in overall efficiency for the electrolyzer systems. In fuel cells, the catalyst layer thickness has been reduced by a factor of 20 compared to the state of the art, and specific activity has increased by an order of magnitude. An additional benefit is that the substrate manufacture, catalyst coating and MEA production are done via a roll-good process, ensuring consistency of product for high reliability. More »

Anticipated Benefits

Primary U.S. Work Locations and Key Partners

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This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.