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Alternative methods of identifying the oxidation of metallic nanoparticles embedded in a matrix

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1016/j.micron.2006.06.006
AuthorSearch for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. National Institute for Nanotechnology
FormatText, Article
Subjectenergy-loss near-edge structures (ELNES); prepeak; postpeak; iron nanoparticles; valence; interface bonding
Abstract
We compare methods for valence-state analysis based on energy-loss near-edge structure (ELNES), including the white-line ratio (WLR), pre-edge peak (prepeak) and post-edge peak (postpeak) techniques. Starting from multiple-scattering calculations, we correlate the appearance of a prepeak in the O-K edge and postpeak in the L-edge with oxidation of a transition metal (TM). The ability to use more than one technique is especially advantageous for a nanocomposite of metallic nanoparticles embedded in a matrix, as we show for the case of iron nanoparticles in a silica matrix.
Publication date
In
  • Micron 38, no. 4 (June 2007): 371–376.
LanguageEnglish
Peer reviewedYes
NRC number547
NPARC number8926302
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Record identifier184ecf91-0e15-426c-b609-865000ad0ee5
Record created2009-04-23
Record modified2020-05-10
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