초록 ▼

A composition of matter comprising titania and Pt and/or Pd is prepared by a process comprising one step of heating Pt and/or Pd/impregnated titania with a reducing gas, in particular free hydrogen, at a temperature of about 300°-800°C. Another composition of matter comprising titania and Pt and/or

A composition of matter comprising titania and Pt and/or Pd is prepared by a process comprising one step of heating Pt and/or Pd/impregnated titania with a reducing gas, in particular free hydrogen, at a temperature of about 300°-800°C. Another composition of matter comprising titania and Pt and/or Pd is prepared by a process comprising the steps of coating a porous ceramic material (preferably a monolith) with colloidal TiO2, drying, impregantion with Pt and/or Pd, drying/calcining, and reducing with a reducing gas, in particular free hydrogen, at a temperature of about 0°-300°C. Both compositions of matter are used as a catalyst in a process for oxidizing CO to CO2, e.g., in a CO2 laser.

대표청구항 ▼

A composition of matter consisting essentially of (i) a support material consisting essentially of titania, (ii) platinum metal and (iii) iron oxide, wherein said composition of matter is active as a catalyst for the oxidation of carbon monoxide with free oxygen to carbon dioxide at about 10°-50°C.,

A composition of matter consisting essentially of (i) a support material consisting essentially of titania, (ii) platinum metal and (iii) iron oxide, wherein said composition of matter is active as a catalyst for the oxidation of carbon monoxide with free oxygen to carbon dioxide at about 10°-50°C., and said composition of matter contains components (ii) and (iii) in amounts such that said iron oxide is effective as copromoter for said platinum metal on said support material in said oxidation at about 10°-50°C.