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

Authors

Shingo Akita, NBC Meshtec
Makoto Amemiya, NBC Meshtec
Takanori Matsumoto, NBC Meshtec
Yohei Jikihara, NBC Meshtec
Tsuruo Nakayama, NBC Meshtec
Md Shahriar Hossain, University of WollongongFollow
Kenya Kani, University of Wollongong
Daisuke Ishii, Nagoya Institute Of Technology
Md Islam, Bangabandhu Sheikh Mujibur Rahman Agricultural University
Xiangfen Jiang, National Institute For Materials Science
Amanullah Fatehmulla, King Saud University College of Science
Wazirzada Farooq, King Saud University College of Science
Yoshio Bando, Waseda University, National Institute For Materials Science
Victor Malgras, University of Wollongong, National Institute for Materials Science, JapanFollow
Yusuke Yamauchi, University of WollongongFollow

RIS ID

113536

Publication Details

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.

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.

Grant Number

ARC/FT150100479