Journal
SURFACE SCIENCE
Volume 562, Issue 1-3, Pages 1-6Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.susc.2004.06.158
Keywords
gold; titanium oxide; growth; surface relaxation and reconstruction; scanning tunneling microscopy; catalysis
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Gold particles deposited on TiO2, (I I 0)-(l x 1) and cross-linked (I x 2) surfaces were observed using scanning tunneling microscopy performed under ultra high vacuum conditions. On the (1 x 1) surfaces, the Au particles grew large and dominantly covered steps even at room temperature. On the cross-linked (I x 2) surfaces, the An particles were of a smaller size and highly dispersed on terraces. The cross-link structure was found to be effective in suppressing the growth of Au particles below 690 K. These results indicated that the cross-link structure strongly influenced the size and dispersion of Au particles. (C) 2004 Elsevier B.V. All rights reserved.
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