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A spectroscopic study of the nature and accessibility of protonic and cationic sites in H- and partially exchanged Cu- and Co-MFI zeolites

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Abstract

A study of the nature and accessibility of internal and external protonic and cationic sites has been carried out on protonic and partially Co- or Cu-exchanged ZSM5zeolite samples through UV-Vis and FT-IR spectroscopies. The samples were prepared by ionic exchange. o-toluonitrile has been chosen as a probe for the external surface of the zeolites. The existence of Cu2+ and Co2+ sites at positions different from those exchanging the active protons of the zeolites is emphasized.

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Authors and Affiliations

  1. DICheP, Università di Genova, p.le J. F. Kennedy 1, 16129, Genoa, Italy

    T. Montanari, M. Bevilacqua & G. Busca

  2. INFM c/o Dip. di Fisica, Università di Genova, Via Dodecaneso 33, 16146, Genoa, Italy

    C. Resini

  3. Istituto di Ricerche sulla Combustione, CNR, Piazzale Tecchio 80, 80125, Naples, Italy

    R. Pirone & G. Ruoppolo

Authors
  1. T. Montanari
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  2. M. Bevilacqua
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  3. C. Resini
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  4. G. Busca
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  5. R. Pirone
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  6. G. Ruoppolo
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Correspondence to G. Busca.

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Montanari, T., Bevilacqua, M., Resini, C. et al. A spectroscopic study of the nature and accessibility of protonic and cationic sites in H- and partially exchanged Cu- and Co-MFI zeolites. J Porous Mater 14, 291–297 (2007). https://doi.org/10.1007/s10934-006-9065-3

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  • DOI: https://doi.org/10.1007/s10934-006-9065-3

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