STRUCTURAL-ANALYSIS OF AU MG(OH)(2) DURING DEACTIVATION BY DEBYE FUNCTION-ANALYSIS/

Authors
VOGEL W CUNNINGHAM DAH TANAKA K HARUTA M
Citation
W. Vogel et al., STRUCTURAL-ANALYSIS OF AU MG(OH)(2) DURING DEACTIVATION BY DEBYE FUNCTION-ANALYSIS/, Catalysis letters, 40(3-4), 1996, pp. 175-181
Citations number
19
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
40
Issue
3-4
Year of publication
1996
Pages
175 - 181
Database
ISI
SICI code
1011-372X(1996)40:3-4<175:SOAMDD>2.0.ZU;2-C
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 w hich 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.