Supported Pt-Co Catalysts for Selective CO Oxidation in a Hydrogen-Rich Stream

摘要

The polymer electrolyte membrane fuel cell (PEMFC) has come to be regarded as one of the most promising candidates for utilizing hydrogen to produce heat and electricity,especially for electric vehicles or residential co-generation systems.Pt and Pt-based alloys,which are generally used as the anode of PEMFCs,are known to be easily poisoned by even small amounts of CO in the hydrogen-rich stream that can be produced from various hydrocarbons by the reforming and water gas shift (WGS) reactions.