You can use the filter on the left to narrow the results
Previous
Type
All Books Papers
Title
Author
Keywords
ISBN
DOI Access
CSIC digital access
Search
Details
PublicationJournal of American Chemical Society
Year2010
Volume132
Pages2345
International

Role of Ceria in Oxidative Dehydrogenation on Supported Vanadia Catalysts

Authors:María Verónica Ganduglia Pirovano, Cristina Popa , J. Sauer , Heather Abbott , Alexander Uhl , Martin Baron , Dario Stacchiola , Oleksandr Bondarchuk , Shamil Shaikhutdinov , H.-J. Freund
Groups of research:Modeling for Theoretical Catalysis
The effect of the suppport on oxidative dehydrogenation activity for vanadia/ceria systems is examined for the oxidation of methanol to formaldehyde by use of well-defined VO(x)/CeO(2)(111) model catalysts Temperature-programmed desorption at low vanadia loadings revealed reactivity at much lower temperature (370 K) as compared to pure ceria and vanadia on inert supports such as silica Density functional theory is applied and the energies of hydrogenation and oxygen vacancy formation also predict an enhanced reactivity of the vanadia/ceria system At the origin of this support effect is the ability of ceria. to stabilize reduced states by accommodating electrons in localized f-states.
Keywords:FORMALDEHYDE, RUTILE TIO2(110), METAL-OXIDE, PROPANE, SELECTIVE OXIDATION, OXIDE CATALYSTS, METHANOL OXIDATION, THIN-FILMS, CEO2(111), SILICA
logo de CSIC