Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-29T10:45:29.581Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation and Evaluation of Bimetallic Au Nano-Catalyst with Aerobic Oxidation of 1-Phenylethanol

Published online by Cambridge University Press:  27 April 2015

Shun Nishimura ,
Takamasa Takahashi ,
Yusuke Yakita  and
Kohki Ebitani
Shun Nishimura
Affiliation:
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
Takamasa Takahashi
Affiliation:
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
Yusuke Yakita
Affiliation:
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
Kohki Ebitani*
Affiliation:
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
*
*Corresponding Author: ebitani@jaist.ac.jp
Get access

Abstract

Contributions of electronic (or ligand) and geometric (or ensemble) effects on the AuM bimetallic nano-catalyst were elucidated by using a simple aerobic oxidation of 1-phenylethanol to acetophenone on the basis of difference in the ionization energy values (Ei) between Au and M elements. The poly(N-vinylpyrrolidone) (PVP)-protected Au60M40 bimetallic NPs (M = Ag, Cu, Pd, Pt and Ir) were prepared with a polyol reduction method, and stabilized onto the solid base hydrotalcite support affording the Au60M40-PVP/HT catalysts. The yields for acetophenone were observed as the following order; Au60Pd40-PVP/HT (>99%) >> Au60Ag40-PVP/HT (17.4%) > Au60Cu40-PVP/HT (13.8%) > Au60Pt40-PVP/HT (7.1%) > Au60Ir40-PVP/HT (5.5%), at 343 K for 6 h. Differences in the Ei between Au and M (EiAu-EiM) indicted that the yields over the Ag, Cu, Pt, and Ir incorporated Au catalysts were well-understood on the ligand effects theory, though geometric factors such as differences in nanostructure around Au atom in Au60M40 NPs on HT should be further considered as other contributed factors. The significant activity on Au60Pd40-PVP/HT was studied in terms of the electron density of Pd atoms. It was observed that the Pd 4d density was varied by the amount of Au loading. According to these observations combined with our previous studies, we suggest that the advantages in AuPd bimetallic catalyst are not only in the ligand effect serving negatively-charged Au but also the ensemble effect of neighbor Pd, and they synergistically contribute to the novel activity for aerobic alcohol oxidation over AuPd catalyst.

Keywords

catalyticoxidationAu
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1758: Symposium VV – Recent Advances in Reactive Materials , 2015 , mrsf14-1758-vv05-04
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Villa, A., Wang, D., Su, D. S. and Prati, L., Catal. Sci. Technol. 5, 55 (2015) (review).CrossRefGoogle Scholar
Brett, G. L., He, Q., Hammond, C., Miedziak, P. J., Dimitratos, N., Sanker, M., Herzing, A. A., Conte, M., Lopez-Sanchez, J. A., Kiely, C. J., Knight, D. W., Taylor, S. H. and Hutchings, G. J., Angew. Chem. Int. Ed. 50, 10136 (2011).CrossRefGoogle Scholar
Nishimura, S., Yakita, Y., Katayama, M., Higashimine, K. and Ebitani, K., Catal. Sci. Technol. 3, 351 (2013).CrossRefGoogle Scholar
Nishimura, S., Yakita, Y., Katayama, M., Higashimine, K. and Ebitani, K., NSTI Nanotech Conf. Technical Proc. 1, 448 (2013).Google Scholar
Corbos, E. C., Ellis, P. R., Cookson, J., Briois, V., Hyde, T. I., Sanlar, G. and Bishop, P. T., Catal. Sci. Technol. 3, 2934 (2013).CrossRefGoogle Scholar
Edwards, J. K., Ntainjua, E.N., Carley, A. F., Herzing, A. A., Kiely, C. J. and Hutchings, G. J., Angew. Chem. Int. Ed. 48, 8512 (2009).CrossRefGoogle Scholar
Nishimura, S., Ikeda, N. and Ebitani, K., Catal. Today 232, 89 (2014).CrossRefGoogle Scholar
Xu, J., White, T., Li, P., He, C., Yu, J., Yuan, W. and Han, Y., J. Am. Chem. Soc. 132, 10398 (2010).CrossRefGoogle Scholar
Ruban, A. V., Skriver, H. L. and Nørskov, J. N., Phys. Rev. B 59, 15990 (1999).CrossRefGoogle Scholar
Zhang, H., Watanabe, T., Okumura, M., Haruta, M. and Toshima, N., Nat. Mater. 11, 49 (2012).CrossRefGoogle Scholar
Tsunoyama, H., Ichikuni, N., Sakurai, H. and Tsukuda, T., J. Am. Chem. Soc. 131, 7086 (2009).CrossRefGoogle Scholar
Zhang, H., Okumura, M. and Toshima, N., J. Phys. Chem. C 115, 14883 (2011).CrossRefGoogle Scholar
Shriver, D. F. and Atkins, P. W., “Inorganic Chemistry”, 3rd edn (Oxford Univ. Press, 1999).Google Scholar
Njoki, P. N., Lim, I. I. S., Mott, D., Park, H. Y., Khan, B., Mishra, S., Sujakumar, R., Luo, J. and Zhong, C. J., J. Phys. Chem. C 111, 14664 (2007).CrossRefGoogle Scholar
Dash, P., Bond, T., Fowler, C., Hou, W., Coombs, N. and Scott, R. W. J., J. Phys. Chem. C 113, 12719 (2009).CrossRefGoogle Scholar
Mori, K., Hara, T., Mizugaki, T., Ebitani, K. and Kaneda, K., J. Am. Chem. Soc. 126, 10657 (2004).CrossRefGoogle Scholar
Nishimura, T., Kakiuchi, N., Inoue, M. and Uemura, S., Chem. Commun., 1245 (2000).Google Scholar
Nascents, P. A. P., de Catro, S. G. C., Landers, R. and Kleiman, G. G., Phys. Rev. B 43, 4659 (1991).CrossRefGoogle Scholar
lee, Y., Jeon, Y., Chung, Y., Lim, K., Whang, C. and Oh, S., J. Korean Phys. Soc. 37, 451 (2000).Google Scholar