ELECTRONIC METAL-OXIDE SUPPORT INTERACTIONS AND THE PRODUCTION OF HYDROGEN THROUGH THE WATER-GAS SHIFT

摘要

Most hydrogen is currently derived from steam reforming ofnhydrocarbons (reacting steam with natural gas): CnHm + nH2O →nnCO + (n-m/2)H2. The reformed fuel contains 1-10% of CO, whichndegrades the performance of the platinum catalysts used in polymernelectrolyte membrane (PEM) fuel cell systems. The water-gas shiftnreaction (WGS: CO + H2O → H2 + CO2) is a critical process innproviding pure hydrogen for fuel cells and other applications. Ournmain objective is to obtain the knowledge necessary to predict thenbehavior, and ultimately design, improved cost-effective water-gasnshift low temperature catalysts.