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Interaction of the Mu-cyclohexadienyl radical with metallic (Au, Pt) nanoparticles in mesoporous silica

Journal Article


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Abstract


  • SR and ALCR techniques have been used to investigate the structure and

    dynamics of the Mu-cyclohexadienyl radical interacting with Au and Pt metal nanoparticles

    (MNPs) supported in mesoporous silica (SBA-15). Surprisingly, coherent precession signals

    are observed and the isotropic hyperne coupling constants are almost the same in loaded and

    unloaded samples, implying that the electronic structure of MuC6H6 is only weakly perturbed

    by the presence of the MNPs. We propose the observed radicals are shielded from the metallic

    surfaces by a benzene coating on the MNPs. The 1 resonance is observable in MNP-loaded

    samples at higher temperatures than in the unloaded SBA-15. This is attributed to stronger

    binding of MuC6H6 to the benzene coated MNPs.

Authors


  •   Xiao, J (external author)
  •   Arseneau, D J. (external author)
  •   Bridges, M D. (external author)
  •   Cortie, David L.
  •   Cottrell, S P. (external author)
  •   Dehn, M (external author)
  •   Fleming, D G. (external author)
  •   Kelly, J A. (external author)
  •   Kiefl, R F. (external author)
  •   Macfarlane, W A. (external author)
  •   MacLachlan, M J. (external author)
  •   McKenzie, I (external author)

Publication Date


  • 2014

Citation


  • Xiao, J., Arseneau, D. J., Bridges, M. D., Cortie, D., Cottrell, S. P., Dehn, M., Fleming, D. G., Kelly, J., Kiefl, R. F., MacFarlane, W. A., MacLachlan, M. & McKenzie, I. (2014). Interaction of the Mu-cyclohexadienyl radical with metallic (Au, Pt) nanoparticles in mesoporous silica. Journal of Physics: Conference Series, 551 012044-1-012044-6.

Scopus Eid


  • 2-s2.0-84919422573

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3331&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2309

Start Page


  • 012044-1

End Page


  • 012044-6

Volume


  • 551

Abstract


  • SR and ALCR techniques have been used to investigate the structure and

    dynamics of the Mu-cyclohexadienyl radical interacting with Au and Pt metal nanoparticles

    (MNPs) supported in mesoporous silica (SBA-15). Surprisingly, coherent precession signals

    are observed and the isotropic hyperne coupling constants are almost the same in loaded and

    unloaded samples, implying that the electronic structure of MuC6H6 is only weakly perturbed

    by the presence of the MNPs. We propose the observed radicals are shielded from the metallic

    surfaces by a benzene coating on the MNPs. The 1 resonance is observable in MNP-loaded

    samples at higher temperatures than in the unloaded SBA-15. This is attributed to stronger

    binding of MuC6H6 to the benzene coated MNPs.

Authors


  •   Xiao, J (external author)
  •   Arseneau, D J. (external author)
  •   Bridges, M D. (external author)
  •   Cortie, David L.
  •   Cottrell, S P. (external author)
  •   Dehn, M (external author)
  •   Fleming, D G. (external author)
  •   Kelly, J A. (external author)
  •   Kiefl, R F. (external author)
  •   Macfarlane, W A. (external author)
  •   MacLachlan, M J. (external author)
  •   McKenzie, I (external author)

Publication Date


  • 2014

Citation


  • Xiao, J., Arseneau, D. J., Bridges, M. D., Cortie, D., Cottrell, S. P., Dehn, M., Fleming, D. G., Kelly, J., Kiefl, R. F., MacFarlane, W. A., MacLachlan, M. & McKenzie, I. (2014). Interaction of the Mu-cyclohexadienyl radical with metallic (Au, Pt) nanoparticles in mesoporous silica. Journal of Physics: Conference Series, 551 012044-1-012044-6.

Scopus Eid


  • 2-s2.0-84919422573

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3331&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2309

Start Page


  • 012044-1

End Page


  • 012044-6

Volume


  • 551