NDLI: Preferential Nucleation of Metallic Clusters on a Nanotemplate: Co on Oxygen-Faceted Re(12 $$ \overline{3} $$ 1)

Content Provider	Springer Nature Link
Author	Reyhan, Meral Wang, Hao Madey, Theodore E.
Copyright Year	2009
Abstract	Preferential nucleation of cobalt nanoclusters at specific sites on oxidized faceted Re(12 $$ \overline{3} $$ 1) is investigated by means of Auger electron spectroscopy (AES), low energy electron diffraction (LEED), and scanning tunneling microscopy (STM). An oxygen terminated nanofaceted Re surface containing ridges and valleys is used as the nanotemplate in this study. Deposition of cobalt onto this surface, followed by annealing to ~800 K, results in preferential cobalt nanocluster nucleation and growth within the valleys of the nanofaceted surface. Decreasing the nanofacet width, cobalt coverage, and annealing temperature lead to the same preferential cobalt nanocluster self assembly, an increase in nanocluster density, and a decrease in nanocluster volume. The preferential nucleation and growth observed for Co nanoclusters on faceted Re makes this a model system for future studies of different substrates and metallic overlayers more relevant to catalytic reactions.
Starting Page	46
Ending Page	49
Page Count	4
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	129
Issue Number	1-2
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2009-02-04
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanotemplate Rhenium Cobalt Oxide Facet Nanocluster Scanning tunneling microscopy Pharmacy Industrial Chemistry/Chemical Engineering Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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