SciAct
Toggle navigation
  • EN
  • RU

Sections:

  • Articles
  • Books
  • Conference attendances
  • Conference theses
  • Patents

Methane Oxidation by Lattice Oxygen of CeNbO4+δ Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
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 University of Aveiro
2 Boreskov Institute of Catalysis SB RAS

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 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Jun 6, 2006
Accepted: Jul 4, 2006
Published online: Jul 12, 2006
Published print: Mar 1, 2007
Identifiers:
publication_identifier.wos_identifier_type WOS:000243163000024
publication_identifier.scopus_identifier_type 2-s2.0-33845596852
publication_identifier.rinz_identifier_type 13542773
publication_identifier.accession_number_identifier_type 2006:1287585
publication_identifier.chemical_accession_number_identifier_type 147:33985
Altmetrics: