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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

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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.

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Acknowledgments

Funding was provided by the Air Force Office of Scientific Research (FA9550-09-1-0333 and FA9550-12-1-0147) and the U.S. Department of Energy (DE-FG02-89ER140048). This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE 0707430. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. We made use of the California NanoSystems Institute Computer Facility, funded in part by the National Science Foundation (CHE 0321368). Financial support of GMM and the MRL Central Facilities are supported by the MRSEC Program of the NSF under Award No. DMR 1121053; a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org).

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Authors and Affiliations

  1. Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106-5080, USA

    Alan R. Derk, George M. Moore & Eric W. McFarland

  2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China

    Bo Li

  3. Chemistry, IIT Gandhinagar, VGEC Campus, Chandkheda, Ahmedabad, 382424, Gujarat, India

    Sudhanshu Sharma

  4. Department of Chemistry & Biochemistry, University of California, Santa Barbara, CA, 93106-9510, USA

    Horia Metiu

Authors
  1. Alan R. Derk
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  2. Bo Li
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  3. Sudhanshu Sharma
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  4. George M. Moore
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  5. Eric W. McFarland
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  6. Horia Metiu
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Corresponding authors

Correspondence to Eric W. McFarland or Horia Metiu.

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Derk, A.R., Li, B., Sharma, S. et al. 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. Catal Lett 143, 406–410 (2013). https://doi.org/10.1007/s10562-013-0985-7

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  • DOI: https://doi.org/10.1007/s10562-013-0985-7

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