Catalysis Letters

, Volume 143, Issue 5, pp 406–410 | Cite as

Methane Oxidation by Lanthanum Oxide Doped with Cu, Zn, Mg, Fe, Nb, Ti, Zr, or Ta: The Connection Between the Activation Energy and the Energy of Oxygen-Vacancy Formation

Article

Abstract

We measure the effective activation energy of methane oxidation catalyzed by La2O3 doped with Cu, Zn, Mg, Fe, Nb, Ti, Zr, or Ta. We find that the measured activation energy is a linear function of the calculated energy of oxygen-vacancy formation.

Graphical Abstract

Keywords

Heterogeneous catalysis Activation energy Oxidation Lanthana Methane Doped oxide 

References

  1. 1.
    Li B, Metiu H (2010) J Phys Chem C 114:12234CrossRefGoogle Scholar
  2. 2.
    Kresse G, Hafner J (1994) Phys Rev B 49:14251CrossRefGoogle Scholar
  3. 3.
    Hammer B, Hansen L, Nørskov J (1999) Phys Rev B 59:7413CrossRefGoogle Scholar
  4. 4.
    Blöchl PE (1994) Phys Rev B 50:17953CrossRefGoogle Scholar
  5. 5.
    Hegde MS, Madras G, Patil KC (2009) Acc Chem Res 42:704CrossRefGoogle Scholar
  6. 6.
    Adachi G, Imanak N, Kang ZC (2004) Binary Rare Earth Oxides. Kluwer Academic Publishers, DordrechtGoogle Scholar
  7. 7.
    Li B, Metiu H (2011) J Phys Chem C 115:18239CrossRefGoogle Scholar
  8. 8.
    Pala RGS, Tang W, Sushchikh MM, Park J-N, Forman AJ, Wu G, Kleiman-Shwarsctein A, Zhang J, McFarland EW, Metiu H (2009) J Catal 266:50CrossRefGoogle Scholar
  9. 9.
    Hu Z, Li B, Sun X, Metiu H (2011) J Phys Chem C 115:3065CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of Chemical EngineeringUniversity of CaliforniaSanta BarbaraUSA
  2. 2.Shenyang National Laboratory for Materials ScienceInstitute of Metal Research, Chinese Academy of SciencesShenyangChina
  3. 3.ChemistryIIT Gandhinagar, VGEC CampusAhmedabadIndia
  4. 4.Department of Chemistry & BiochemistryUniversity of CaliforniaSanta BarbaraUSA

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