Article

Catalysis Letters

, Volume 143, Issue 5, pp 406-410

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

  • Alan R. DerkAffiliated withDepartment of Chemical Engineering, University of California
  • , Bo LiAffiliated withShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
  • , Sudhanshu SharmaAffiliated withChemistry, IIT Gandhinagar, VGEC Campus
  • , George M. MooreAffiliated withDepartment of Chemical Engineering, University of California
  • , Eric W. McFarlandAffiliated withDepartment of Chemical Engineering, University of California Email author 
  • , Horia MetiuAffiliated withDepartment of Chemistry & Biochemistry, University of California Email author 

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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

http://static-content.springer.com/image/art%3A10.1007%2Fs10562-013-0985-7/MediaObjects/10562_2013_985_Figa_HTML.gif

Keywords

Heterogeneous catalysis Activation energy Oxidation Lanthana Methane Doped oxide