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UV-visible spectroscopic study of solid state 12-molybdophosphoricacid catalyst

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Summary

UV-visible spectroscopic studies of solid H3PMo12O40were carried out to elucidate the effect of crystalline water molecules, and in turn, to provide a guideline for utilizing UV-visible spectra of solids to probe reduction potentials of HPA catalysts. UV-visible spectra of reduced/reoxidized H3PMo12O40were also measured to check the possibility of utilizing UV-visible spectroscopy as a probe of reduction/oxidation states of H3PMo12O40catalyst. Absorption edges of solid H3PMo12O40 shifted to longer wavelength with heating to decrease the number of crystalline water molecules. It was also revealed that UV-visible spectra of the H3PMo12O40catalyst varied in a systematic way depending on the reduction/oxidation states of the H3PMo12O40catalyst.</o:p>

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Authors and Affiliations

  1. School of Chemical and Biological Engineering, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-744, South Korea

    Min Hye Youn

  2. School of Chemical and Biological Engineering, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-744, South Korea

    Heesoo Kim

  3. School of Chemical and Biological Engineering, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-744, South Korea

    In Kyu Song

  4. Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, U. S. A.

    Katherine P. Barteau

  5. Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, U. S. A.

    Mark A. Barteau

Authors
  1. Min Hye Youn
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  2. Heesoo Kim
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  3. In Kyu Song
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  4. Katherine P. Barteau
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  5. Mark A. Barteau
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Youn, M., Kim, H., Song, I. et al. UV-visible spectroscopic study of solid state 12-molybdophosphoricacid catalyst . React Kinet Catal Lett 87, 85–91 (2005). https://doi.org/10.1007/s11144-006-0012-8

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  • DOI: https://doi.org/10.1007/s11144-006-0012-8

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