EXAFS Study of the Fex/ZrO2 Composite Nanomaterials Obtained by Sol-Gel Synthesis Full article
Conference |
11th International Conference on X-ray Absorption Fine Structure 26-31 Jul 2000 , Ako |
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Journal |
Journal of Synchrotron Radiation
ISSN: 0909-0495 , E-ISSN: 1600-5775 |
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Output data | Year: 2001, Volume: 8, Number: 2, Pages: 528-530 Pages count : 3 DOI: 10.1107/S0909049501000875 | ||||||||
Tags | EXAFS, Nanoparticles, Surface, Zirconia | ||||||||
Authors |
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Affiliations |
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Funding (2)
1 | Russian Foundation for Basic Research | 00-03-32407 |
2 | North Atlantic Treaty Organization | ENVIR.LG 971292 |
Abstract:
The local Zr and Fe arrangements in the nanocomposite system Fex/ZrO2 (x=0-0.2) obtained by sol-gel method were studied by EXAFS. The phase composition was found to vary significantly on iron loading. For the samples calcined at 500 or 600°C, at x[less-than or equal to]0.01, the formed ZrO2 is a mixture of monoclinic and tetragonal structures. Only tetragonal structure is revealed at x[greater-than or equal to]0.05 with the exception of Fe0.2/ZrO2, calcined at 500°C, where new non-typically short Zr-Zr distances (3.29, 3.43Å) were observed. At low iron loading (less than one monolayer) Fe3+ ions were found to localize within the pre-surface layers of ZrO2 nanoparticles showing property of isolated ions. For greater Fe loading, iron exhibits either two-dimensional layer structure or two-phase system.
Cite:
Kriventsov V.
, Kochubey D.
, Navío J.A.
, Hidalgo M.C.
, Colón G.
, Tsodikov M.
, Maksimov Y.
, Suzdalev I.
EXAFS Study of the Fex/ZrO2 Composite Nanomaterials Obtained by Sol-Gel Synthesis
Journal of Synchrotron Radiation. 2001. V.8. N2. P.528-530. DOI: 10.1107/S0909049501000875 WOS Scopus РИНЦ
EXAFS Study of the Fex/ZrO2 Composite Nanomaterials Obtained by Sol-Gel Synthesis
Journal of Synchrotron Radiation. 2001. V.8. N2. P.528-530. DOI: 10.1107/S0909049501000875 WOS Scopus РИНЦ
Files:
Full text from publisher
Dates:
Published print: | Mar 1, 2001 |
Published online: | Mar 1, 2001 |
Identifiers:
Web of science | WOS:000167298100145 |
Scopus | 2-s2.0-0035529867 |
Elibrary | 13374362 |
Chemical Abstracts | 2001:162689 |
Chemical Abstracts (print) | 134:269940 |
OpenAlex | W1976285442 |