Abstract
Using a Debye function analysis, the presence of icosahedral and face centered cuboctahedral gold in a 1 ∶ 1 ratio has been found in freshly prepared Au/Mg(OH)2 catalyst. The results support earlier studies which suggest the icosahedral form to be more stable at small nanometer sizes. Interactions between the gold and the Mg(OH)2 support appear to be weak, with the gold rapidly coagulating over a period of three months. Re-analysis of the aged sample shows the gold to be mainly in the form of truncated decahedra.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Haruta, Catal. Today, submitted.
S. Tsubota, M. Haruta, T. Kobayashi, A. Ueda and Y. Nakahara, in:Preparation of Catalysts V (Elsevier, Amsterdam, 1991) p. 695.
M. Haruta, S. Tsubota, T. Kobayashi, H. Kageyama, M.J. Genet and B. Delmon, J. Catal. 144 (1993) 175.
J. Uppenbrink and D.J. Wales, J. Chem. Phys. 96 (1992) 8520.
P. Debye, Ann. Phys. 46 (1915) 807.
M.A. Marcus, H.P. Andrews, J. Zegenhagen, A.S. Bommannadar and P.M. Ontano, Phys. Rev. B 42 (1990) 3312.
A. Balerna, E. Bernieri, P. Picozzi, A. Reale, S. Santucci, E. Burattini and S. Mobilio, Phys. Rev. B 31 (1985) 5058.
G. D'Agostino, A. Pinto and S. Mobilio, Phys. Rev. B 48 (1993) 14447.
W. Vogel, in:Proc. 10th Int. Congr. of Catalysis, Budapest 1992, eds. L. Guczi, F. Solymosi and P. Tétényi (Elsevier, Amsterdam, 1993).
W. Vogel, B. Rosner and B. Tesche, J. Phys. Chem. 97 (1993) 11611.
B.D. Hall, R. Flueli, R. Monot and J.P. Borel, Z. Phys. D 12 (1989) 97.
V. Gnutzmann and W. Vogel, J. Phys. Chem. 94 (1990) 4991.
W. Vogel, W.M.H. Sachtler and Z. Zhang, Ber. Bunsenges. Phys. Chem. 97 (1993) 280.
N. Hartmann, R. Imbihl and W. Vogel, Catal. Lett. 28 (1994) 373.
W. Vogel and D.G. Duff, Langmuir 11 (1995) 401.
A.V. Kazakov, E.S. Shpiro and T.V. Voskoboinikov, J. Phys. Chem. 99 (1995) 8323.
S. Tsubota, N. Yamada, M. Haruta, T. Kobayashi and Y. Nakahara, Chem. Expr. 5 (1990) 349 (in Japanese).
A.L. Mackay, Acta. Cryst. 15 (1962) 916.
G. Shmid, R. Pfiel, R. Boese, F. Bandermann, S. Meyer, G.H.M. Calis and J.A.M. Velden, Chem. Ber. 114 (1981) 3634.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vogel, W., Cunningham, D.A.H., Tanaka, K. et al. Structural analysis of Au/Mg(OH)2 during deactivation by Debye function analysis. Catal Lett 40, 175–181 (1996). https://doi.org/10.1007/BF00815279
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00815279