Proton Exchange Membrane Fuel Cell
- Amphiphilic polymer membrane with Platinum-based electrode for Power Generation
- Ultralow Pt (< 0.2 mg/cm2) loading for power sensity (>1000 mW/cm2)
- Hydrogen at anode || Electrolyte|| Oxygen at Cathode = Power Generation
- Hydrogen Fuel at the anode and protons pass solid electrolyte membrane to cathode side
- Electrons travel through external circuit generating electrical energy in the cell
- Ion cathode electrode combines protons, electrons with oxygen to produce water at temp < 100 oC
Water Electrocatalyst Development
- Hydrogen Evolution Reaction using transition metal electrocatalysts using La0.3Sr0.7Ti0.3Fe0.7O3−σ coated on an Sm0.2Ce0.8O1.9 (SDC)– yttria-stabilized zirconia (YSZ)–SDC electrolyte
- SrFeO3−σ-based ABO3-type perovskites for solid-oxide fuel cells and solid oxide electrolysis cells
- Water Electrolysis is 60% efficient with cost of $10/kg of H2 (g) using alkaline or solid oxide or proton exchange membrane as electrolysers
- Also electro- and photo catalysts for water purification, disinfection and degradation of organics
Also: Catalysts for:
