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Reduction of NO over Partially Reduced Metal-Loaded CeO2–ZrO2Solid Solutions
, Fornasiero P., Di Monte R., Kašpar J., Vlaic G., Balducci G., Meriani S., Gubitosa G., Cremona A., Graziani M.
Published in Elsevier BV
Volume: 162
Issue: 1
Pages: 1 - 9

CeO2–ZrO2solid solutions supported with Rh and Pt are investigated as catalysts for reduction of NO by CO. The incorporation of ZrO2into the CeO2framework strongly promotes the reduction of Ce4+in the bulk of the support. The effects of the reduction temperature are investigated and it is shown that when bulk oxygen vacancies are formed in the reduced CeO2–ZrO2solid solution, NO is efficiently decomposed on the support to give N2O and N2. The presence of bulk oxygen vacancies is indicated as the driving force for NO dissociation, suggesting their indirect participation in the catalytic cycle.

About the journal
JournalData powered by TypesetJournal of Catalysis
PublisherData powered by TypesetElsevier BV
Open AccessNo