Mechanochemical Synthesis, Structure, and Properties of Nanocrystalline Metastable Perovskites and Fluorites for Catalytic Membrane Reactors Full article
| Conference |
10th Seminar on Nanoscience and Technology Materials 02-06 Jun 2003 , Novosibirsk |
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| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2004, Volume: 45, Pages: S127-S132 Pages count : 6 DOI: 10.1007/s10947-006-0107-0 | ||||||||
| Tags | fluorite perovskite; mechanochemical synthesis; metastable phase; nanopowders; mixed conductivity; composites; compatibility; catalytic membrane reactor (CMR) | ||||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 02-2162 |
Abstract:
Nanosized powders of conductive complex fluorites based on δ-Bi2O3 and perovskites based on LnMnO3, SrFeO3, LnGaO3 have been obtained by mechanochemical synthesis. Complex doping was used for kinetic stabilization of the metastable phases, which provides dense ceramics prepared by the standard sintering procedure. Some perovskites and especially fluorites with a large cell parameter are rhombohedrally distorted during sintering, and their conductivity decreases. Complex fluorites with sintering temperatures optimal for composite membranes and with ion conductivity as high as that of the known conductor Ce0.8Gd0.2O2-δ have been obtained. There are chemically compatible systems that can give composites with mixed conductivity — potential materials for catalytic membrane reactors — prepared from nanopowders. Criteria for selecting oxide conductors for composites are formulated: appropriate sintering temperature, chemical compatibility, and high conductivity.
Cite:
Zyryanov V.V.
, Uvarov N.F.
, Sadykov V.A.
, Alikina G.M.
, Ivashkevich L.S.
, Ivanovskaya M.I.
, Neophytides S.
Mechanochemical Synthesis, Structure, and Properties of Nanocrystalline Metastable Perovskites and Fluorites for Catalytic Membrane Reactors
Journal of Structural Chemistry. 2004. V.45. P.S127-S132. DOI: 10.1007/s10947-006-0107-0 WOS РИНЦ ANCAN OpenAlex
Mechanochemical Synthesis, Structure, and Properties of Nanocrystalline Metastable Perovskites and Fluorites for Catalytic Membrane Reactors
Journal of Structural Chemistry. 2004. V.45. P.S127-S132. DOI: 10.1007/s10947-006-0107-0 WOS РИНЦ ANCAN OpenAlex
Original:
Зырянов В.В.
, Уваров Н.Ф.
, Садыков В.А.
, Аликина Г.М.
, Ивашкевич Л.С.
, Ивановская М.И.
, Неофитидес С.
Механохимический синтез, структура и свойства нанокристаллических метастабильных перовскитов и флюоритов для каталитических мембранных реакторов
Журнал структурной химии. 2004. Т.45. №7. С.S128-S134. РИНЦ
Механохимический синтез, структура и свойства нанокристаллических метастабильных перовскитов и флюоритов для каталитических мембранных реакторов
Журнал структурной химии. 2004. Т.45. №7. С.S128-S134. РИНЦ
Dates:
| Submitted: | Sep 3, 2003 |
| Published print: | Dec 1, 2004 |
Identifiers:
| Web of science: | WOS:000237439100021 |
| Elibrary: | 29242852 |
| Chemical Abstracts: | 2006:474226 |
| Chemical Abstracts (print): | 145:111095 |
| OpenAlex: | W2039627787 |