Application of SR Methods for the Study of Nanocomposite Materials for Hydrogen Energy Full article
Conference |
The International Conference "Synchrotron and Free electron laser Radiation: generation and application" 04-07 Jul 2016 , Novosibirsk |
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Journal |
Physics Procedia
ISSN: 1875-3892 |
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Output data | Year: 2016, Volume: 84, Pages: 397-406 Pages count : 10 DOI: 10.1016/j.phpro.2016.11.068 | ||||||||
Tags | catalytic membrane reactors, oxygen mobility, perovskite-fluorite nanocomposites, SOFC, synchrotron radiaton, unit cell volume relaxation, XAFS | ||||||||
Authors |
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Affiliations |
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Funding (5)
1 | Federal Agency for Scientific Organizations | V.44.1.17. (0303-2014-0003) |
2 | Russian Foundation for Basic Research | 16-03-01139 |
3 | European Commission | 604296 FP7-NMP-2013-LARGE-7 BIOGO |
4 | Russian Science Foundation | 14-50-00080 |
5 | The Ministry of Education and Science of the Russian Federation | 14.616.21.0036 |
Abstract:
This work summarizes results of synchrotron radiation (SR) studies of the real/defect structure of nanocrystalline/nanocomposite oxide materials, which determines their functional properties in hydrogen energy field as catalysts and mixed ionic electronic conductors (cathodes and anodes of solid oxide fuel cells, oxygen separation membranes). For nanocrystalline ceria-zirconia mixed oxide prepared via modified Pechini route using ethanol solution of reagents, a high spatial uniformity of cations distribution between domains along with the oxygen sublattice deficiency revealed by full-profile Rietveld refinement of SR diffraction data provide structure disordering enhancing oxygen mobility. For PrNi0.5Co0.5O3-δ – Ce0.9Y0.1O2-δ nanocomposite extensive transfer of Pr cations into fluorite domains generates a new path of fast oxygen diffusion along chains of Pr3+ – Pr4+ cations as directly proved by analysis of the unit cell relaxation after changing pO2 in perfect agreement with data obtained by oxygen isotope heteroexchange.
Cite:
Sadykov V.A.
, Pavlova S.N.
, Vinokurov Z.S.
, Shmakov A.N.
, Eremeev N.F.
, Fedorova Y.E.
, Yakimchuk E.P.
, Kriventsov V.V.
, Bolotov V.A.
, Tanashev Y.Y.
, Sadovskaya E.M.
, Cherepanova S.V.
, Zolotarev K.V.
Application of SR Methods for the Study of Nanocomposite Materials for Hydrogen Energy
Physics Procedia. 2016.
V.84. P.397-406. DOI: 10.1016/j.phpro.2016.11.068
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Application of SR Methods for the Study of Nanocomposite Materials for Hydrogen Energy
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Dates:
Published print: | Jan 1, 2016 |
Published online: | Dec 12, 2016 |
Identifiers:
Web of science: | WOS:000392696400065 |
Scopus: | 2-s2.0-85016242187 |
Elibrary: | 29500786 |
Chemical Abstracts: | 2016:2089598 |
Chemical Abstracts (print): | 173:11437 |
OpenAlex: | W2565608234 |