Methane Oxidation by Lattice Oxygen of CeNbO4+δ Full article
Journal |
Catalysis Communications
ISSN: 1566-7367 , E-ISSN: 1873-3905 |
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Output data | Year: 2007, Volume: 8, Number: 3, Pages: 335-339 Pages count : 5 DOI: 10.1016/j.catcom.2006.07.004 | ||||
Tags | Cerium niobate, Methane oxidation, Synthesis gas, Temperature-programmed reduction, Thermal analysis | ||||
Authors |
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Affiliations |
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Funding (2)
1 | North Atlantic Treaty Organization | 978002 |
2 | Foundation for Science and Technology | POCI/CTM/58570/2004 |
Abstract:
The reactivity of methane with lattice oxygen of cerium niobate, CeNbO4+δ, was studied by temperature-programmed reduction (TPR) in dry CH4 flow at 523–1073 K. Phase transformations and reduction of cerium niobate at 900–1023 K lead to a massive release of hyperstoichiometric oxygen, in amounts determined by the intermediate-temperature phase composition dependent on thermal history. In this temperature range, CH4–TPR shows prevailing formation of carbon monoxide and steam, suggesting that the synthesis generation occurs in parallel with extensive oxidation of H2 on the cerium niobate surface. At 1073 K when δ → 0, the reaction of methane with CeNbO4+δ selectively yields synthesis gas with H2/CO ratio close to two.
Cite:
Yaremchenko A.A.
, Kharton V.V.
, Veniaminov S.A.
, Belyaev V.D.
, Sobyanin V.A.
, Marques F.M.B.
Methane Oxidation by Lattice Oxygen of CeNbO4+δ
Catalysis Communications. 2007. V.8. N3. P.335-339. DOI: 10.1016/j.catcom.2006.07.004 WOS Scopus РИНЦ
Methane Oxidation by Lattice Oxygen of CeNbO4+δ
Catalysis Communications. 2007. V.8. N3. P.335-339. DOI: 10.1016/j.catcom.2006.07.004 WOS Scopus РИНЦ
Dates:
Submitted: | Jun 6, 2006 |
Accepted: | Jul 4, 2006 |
Published online: | Jul 12, 2006 |
Published print: | Mar 1, 2007 |
Identifiers:
Web of science | WOS:000243163000024 |
Scopus | 2-s2.0-33845596852 |
Elibrary | 13542773 |
Chemical Abstracts | 2006:1287585 |
Chemical Abstracts (print) | 147:33985 |
OpenAlex | W2074572695 |