EXAFS Study of Fe(3+) Interaction with ZrO2 and TiO2 Oxides Full article
Conference |
X-Ray Absorption Fine Structure : 12th International Conference 22-27 Jun 2003 , Malmö/Lund |
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Journal |
Physica Scripta
ISSN: 0281-1847 , E-ISSN: 0031-8949 |
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Output data | Year: 2005, Volume: T115, Pages: 736-739 Pages count : 4 | ||||||||
Tags | Bond length; Extended X ray absorption fine structure spectroscopy; Ions; Nanoparticles; Titanium dioxide; Zirconia | ||||||||
Authors |
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Affiliations |
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Funding (4)
1 | Russian Foundation for Basic Research | 03-03-32340 |
2 | North Atlantic Treaty Organization | EST.CLG 979855 |
3 | Russian Foundation for Basic Research | 02-03-33053 |
4 | Russian Foundation for Basic Research | 03-03-33104 |
Abstract:
The forms of Fe(3+) ions stabilization on TiO2, ZrO2 oxide nanoparticles and their composition were studied by EXAFS spectroscopy. The structure of the iron local surrounding was investigated with respect to: preparation method, coverage, support crystal modification, acidity of oxide surface and way of iron introduction into oxide matrix. For all oxides, it was shown that Fe(3+) ions stabilized mainly on the nanoparticle surfaces as isolated ions at low coverage. The location of these ions on the oxide surface depends on the correlation between Fe–O bond length and Me–O (Me = Ti, Zr) interatomic distances of oxide carriers. The increase of surface coverage results in formation of two-dimension layer structures. For the ZrO2-TiO2 composition, it should be noted that the iron cations interact mainly with zirconia. A few structural models of different iron locations were discussed.
Cite:
Kriventsov V.V.
, Kochubey D.I.
, Colón G.
, Hidalgo M.C.
, Navio J.A.
, Tsodikov M.V.
, Maksimov Y.V.
EXAFS Study of Fe(3+) Interaction with ZrO2 and TiO2 Oxides
Physica Scripta. 2005. V.T115. P.736-739. WOS Scopus РИНЦ
EXAFS Study of Fe(3+) Interaction with ZrO2 and TiO2 Oxides
Physica Scripta. 2005. V.T115. P.736-739. WOS Scopus РИНЦ
Dates:
Submitted: | Jun 26, 2003 |
Accepted: | Jan 30, 2004 |
Identifiers:
Web of science | WOS:000204272100222 |
Scopus | 2-s2.0-42149084414 |
Elibrary | 15041087 |
Chemical Abstracts | 2005:477194 |
Chemical Abstracts (print) | 144:96971 |
OpenAlex | W2053011665 |