Title
Influence of Aging and Environment on Nanoparticle Chemistry: Implication to Confinement Effects in Nanoceria
Abbreviated Journal Title
J. Phys. Chem. C
Keywords
ULTRAVIOLET-ABSORPTION SPECTRA; OXIDE FUEL-CELLS; CEO2 NANOPARTICLES; HYDROGEN PEROXIDE; CERIA; CERIUM(IV); PARTICLES; OXIDATION; SYSTEM; ENERGY; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, ; Multidisciplinary
Abstract
The oxidation state switching of cerium in cerium oxide nanoparticles is studied in detail. The influence of synthesis medium, aging time, and local environment on the oxidation state switching, between +3 and +4, is analyzed by tracking the absorption edge using UV-visible spectroscopy. It is observed that by tuning the local environment, the chemistry of the nanoparticles could be altered. These time-dependent, environmentally induced changes likely contribute to inconsistencies in the literature regarding quantum-confinement effects for ceria nanoparticles. The results in this Article indicate that there is a need to carry out comprehensive analysis of nanoparticles while considering the influence of synthesis and processing conditions, aging time and local environment.
Journal Title
Journal of Physical Chemistry C
Volume
116
Issue/Number
26
Publication Date
1-1-2012
Document Type
Article
DOI Link
Language
English
First Page
14108
Last Page
14114
WOS Identifier
ISSN
1932-7447
Recommended Citation
"Influence of Aging and Environment on Nanoparticle Chemistry: Implication to Confinement Effects in Nanoceria" (2012). Faculty Bibliography 2010s. 2887.
https://stars.library.ucf.edu/facultybib2010/2887
Comments
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