Methane Oxidation by Lattice Oxygen of CeNbO4+δ | Sciact - CRIS-system of Boreskov Institute of Catalysis

Methane Oxidation by Lattice Oxygen of CeNbO4+δ Full article

Journal

Catalysis Communications
ISSN: 1566-7367 , E-ISSN: 1873-3905

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

Yaremchenko A.A. ¹ , Kharton V.V. ¹ , Veniaminov S.A. ² , Belyaev V.D. ² , Sobyanin V.A. ² , Marques F.M.B. ¹

Affiliations

1	Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
2	Boreskov Institute, Catalysis SB RAS, Novosibirsk, 630090, 5 pr. Akademika Lavrentieva, Russian Federation

Funding (2)

1	North Atlantic Treaty Organization	978002
2	Foundation for Science and Technology	POCI/CTM/58570/2004

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.

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 ANCAN OpenAlex

Submitted:	Jun 6, 2006
Accepted:	Jul 4, 2006
Published online:	Jul 12, 2006
Published print:	Mar 1, 2007

Web of science:	WOS:000243163000024
Scopus:	2-s2.0-33845596852
Elibrary:	13542773
Chemical Abstracts:	2006:1287585
Chemical Abstracts (print):	147:33985
OpenAlex:	W2074572695

DB	Citing
Web of science	22
Scopus	22
Elibrary	22
OpenAlex	21