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How does the strength of exchange interactions in iron oxides influence the EPR line intensity and the catalytic activity?

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Abstract

Fe(III) ions may form ordered domains wherein the EPR resonance extends to the whole particle volume, leading to a major increase of spectral line intensities. This phenomenon of “strong exchange“ is known as ferromagnetic resonance (fmr). The authors observed another type of exchange, a weak one, characterized by drastically reduced resonances. Interestingly, both exchanges run parallel (up- or downwards) with the catalytic activity of iron oxide nano-particles as catalysts in the N2O-mediated selective oxidation of benzene.

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References

  1. D.H. Lin, G. Codurier, J.C. Vedrine, in: “Zeolites: Facts, Figures, Future”, P.A. Jacobs, R.A. van Santen (Eds), p. 1431, Amsterdam 1992.

  2. P. Fejes, I. Kiricsi, K. Lázár, I. Marsi, A. Rockenbauer, L. Korecz, J.B. Nagy, R. Aiello, F. Testa: Appl. Catal. A, 242, 247 (2003).

    Article  CAS  Google Scholar 

  3. P. Fejes, K. Lázár, I. Marsi, A. Rockenbauer, L. Korecz, J.B. Nagy, S. Perathoner, G. Centi: Appl. Catal. A, 252, 75 (2003).

    Article  CAS  Google Scholar 

  4. P. Fejes, V. Kis, K. Lázár, I. Marsi, J.B. Nagy: Microporous & Mesoporous Materials 1121–3, 377 (2008)

    Article  CAS  Google Scholar 

  5. M. Benz, A.M. van der Kraan, R. Prins: Appl. Catal., 172, 149 (1998).

    Article  CAS  Google Scholar 

  6. R.M. Cornell, U. Schwertmann: The iron oxides: Structure, properties, reactions, occurrence and uses. 573 pp. VCH, Weinheim and New York 1996.

    Google Scholar 

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Authors and Affiliations

  1. Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, 6720, Szeged, Hungary

    Pál Fejes & János Halász

  2. Department of Chemical Informatics, University of Szeged, 6725, Szeged, Boldogasszony sugárút 6, Hungary

    István Marsi

  3. Chemical Research Center of the Hungarian Academy, 1525, Budapest, Pusztaszeri út 59/67, Hungary

    Nóra Nagy

Authors
  1. Pál Fejes
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  2. István Marsi
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  3. Nóra Nagy
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  4. János Halász
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Correspondence to Pál Fejes.

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Fejes, P., Marsi, I., Nagy, N. et al. How does the strength of exchange interactions in iron oxides influence the EPR line intensity and the catalytic activity?. React Kinet Catal Lett 96, 357–365 (2009). https://doi.org/10.1007/s11144-009-5504-x

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  • DOI: https://doi.org/10.1007/s11144-009-5504-x

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