Please use this identifier to cite or link to this item: https://doi.org/10.1039/b604627b
Title: Nucleation and growth of cobalt nanostructures on highly oriented pyrolytic graphite
Authors: Poon, S.W. 
Pan, J.S.
Tok, E.S. 
Issue Date: 2006
Source: Poon, S.W., Pan, J.S., Tok, E.S. (2006). Nucleation and growth of cobalt nanostructures on highly oriented pyrolytic graphite. Physical Chemistry Chemical Physics 8 (28) : 3326-3334. ScholarBank@NUS Repository. https://doi.org/10.1039/b604627b
Abstract: Cobalt in the form of three-dimensional (3D) hemispherical clusters (size ∼10-30 nm) were observed to grow on pristine graphite surfaces via a Volmer-Weber growth mode. X-Ray photoelectron spectroscopy (XPS) reveals that these clusters are physisorbed on the surface. In the presence of minute surface contamination, the morphology of Co changes into a mixture of irregular and hemispherical three-dimensional islands. The formation of irregular islands appears to be mediated by the chemical interactions between Co and the surface contaminants as evidenced from analysis of the carbon π-π* transitions. Further analysis of size distribution of Co nanoclusters grown on pristine surfaces shows a critical nucleus size of i* = 1, i.e. a Co dimer forms the smallest stable cluster on a pristine graphite surface. © the Owner Societies 2006.
Source Title: Physical Chemistry Chemical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97388
ISSN: 14639076
DOI: 10.1039/b604627b
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

24
checked on Feb 19, 2018

WEB OF SCIENCETM
Citations

27
checked on Feb 19, 2018

Page view(s)

26
checked on Feb 18, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.