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Gold Nanoparticles Supported on Mesoporous Titania Thin Films with High Loading as a CO Oxidation Catalyst

Journal Article


Abstract


  • In the present work, 2.4nm gold nanoparticles (Au NPs) are uniformly dispersed on mesoporous titania thin films which are structurally tuned by controlling the calcination temperature. The gold content of the catalyst is as high as 27.8wt%. To our knowledge, such a high loading of Au NPs with good dispersity has not been reported until now. Furthermore, the reaction rate of the gold particles is enhanced by one order of magnitude when supported on mesoporous titania compared to non-porous titania. This significant improvement can be explained by an increase in the diffusivity of the substrate due to the presence of mesopores, the resistance to agglomeration, and improved oxygen activation.

Authors


  •   Akita, Shingo (external author)
  •   Amemiya, Makoto (external author)
  •   Matsumoto, Takanori (external author)
  •   Jikihara, Yohei (external author)
  •   Nakayama, Tsuruo (external author)
  •   Hossain, Md Shahriar
  •   Kani, Kenya (external author)
  •   Ishii, Daisuke (external author)
  •   Islam, Md (external author)
  •   Jiang, Xiangfen (external author)
  •   Fatehmulla, Amanullah (external author)
  •   Farooq, Wazirzada (external author)
  •   Bando, Yoshio
  •   Malgras, Victor (external author)
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2017

Citation


  • Akita, S., Amemiya, M., Matsumoto, T., Jikihara, Y., Nakayama, T., Hossain, M. A., Kani, K., Ishii, D., Islam, M. Tofazzal., Jiang, X., Fatehmulla, A., Farooq, W. Aslam., Bando, Y., Malgras, V. & Yamauchi, Y. (2017). Gold Nanoparticles Supported on Mesoporous Titania Thin Films with High Loading as a CO Oxidation Catalyst. Chemistry: An Asian Journal, 12 (8), 877-881.

Scopus Eid


  • 2-s2.0-85016572081

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2479

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 877

End Page


  • 881

Volume


  • 12

Issue


  • 8

Place Of Publication


  • Germany

Abstract


  • In the present work, 2.4nm gold nanoparticles (Au NPs) are uniformly dispersed on mesoporous titania thin films which are structurally tuned by controlling the calcination temperature. The gold content of the catalyst is as high as 27.8wt%. To our knowledge, such a high loading of Au NPs with good dispersity has not been reported until now. Furthermore, the reaction rate of the gold particles is enhanced by one order of magnitude when supported on mesoporous titania compared to non-porous titania. This significant improvement can be explained by an increase in the diffusivity of the substrate due to the presence of mesopores, the resistance to agglomeration, and improved oxygen activation.

Authors


  •   Akita, Shingo (external author)
  •   Amemiya, Makoto (external author)
  •   Matsumoto, Takanori (external author)
  •   Jikihara, Yohei (external author)
  •   Nakayama, Tsuruo (external author)
  •   Hossain, Md Shahriar
  •   Kani, Kenya (external author)
  •   Ishii, Daisuke (external author)
  •   Islam, Md (external author)
  •   Jiang, Xiangfen (external author)
  •   Fatehmulla, Amanullah (external author)
  •   Farooq, Wazirzada (external author)
  •   Bando, Yoshio
  •   Malgras, Victor (external author)
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2017

Citation


  • Akita, S., Amemiya, M., Matsumoto, T., Jikihara, Y., Nakayama, T., Hossain, M. A., Kani, K., Ishii, D., Islam, M. Tofazzal., Jiang, X., Fatehmulla, A., Farooq, W. Aslam., Bando, Y., Malgras, V. & Yamauchi, Y. (2017). Gold Nanoparticles Supported on Mesoporous Titania Thin Films with High Loading as a CO Oxidation Catalyst. Chemistry: An Asian Journal, 12 (8), 877-881.

Scopus Eid


  • 2-s2.0-85016572081

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2479

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 877

End Page


  • 881

Volume


  • 12

Issue


  • 8

Place Of Publication


  • Germany