Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 1, Pages 477-487Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b13408
Keywords
methane oxidation; double deposition approach; mesoporous silica; ceria; palladium oxide
Funding
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Westport Fuel Systems Inc.
- UBC
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Nanostructured PdO/CeO2 supported on mesoporous SBA-15 silica was synthesized using a combination of incipient wetness impregnation and surface-assisted reduction. After calcination, the materials showed good activity as catalysts for the low-temperature oxidation of methane, with a sample having 5 wt % Pd loading showing 50% conversion to CO2 at similar to 290 degrees C and complete conversion below 360 degrees C. The stability of catalysts in the presence of water was studied. The formation of Pd(0) during the methane oxidation reaction increases the oxygen vacancies on the surface of catalysts, improving the catalytic activity.
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