Nitrogen oxide redn. from vehicle exhaust gases without use of ammonia

摘要

The NO present in vehicle exhaust gases is reduced by cathodically reducing the enriched NO to N2 and O<2->, in a gas diffusion electrode. The O<2-> ions are transported in a solid electrolyte connected to the gas diffusion electrode, to an anodic gas diffusion electrode where they are discharged to O2 mols..