Nanoscopic Cobalt Ferrite by Sonolysis of M(acac)3 Complexes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F08%3A00026052" target="_blank" >RIV/00216224:14310/08:00026052 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Nanoscopic Cobalt Ferrite by Sonolysis of M(acac)3 Complexes
Original language description
We examined the sonochemical synthesis of CoFe2O4. Composite nanoscopic particles consisting of Co-Fe oxide particles and an organic matrix were prepared by sonolysis of mixtures of 2,4-pentanedionato complexes, M(acac)n, M = Fe, Co; n = 2, 3. The XRD results showed that phase pure CoFe2O4 samples were prepared with a molar content of Co:Fe from 1:1.3 to 1:2.0. Addition of variable amounts of water was found to facilitate the decomposition of precursor complexes. That allowed control of the organics content and the BET surface area of the oxide nanoparticles. Powders with specific surface area as high as 218 m2 g-1 were obtained. FE-SEM was used to examine particle shape, size, and size distribution with an estimated diameter of 20-30 nm. Variable temperature XRD also revealed the spinel crystallization on heating. A small particle size below 20 nm of the crystalline CoFe2O4 is retained up to 600 oC.
Czech name
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Czech description
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Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
11 th Meeting of the European Society of Sonochemistry
ISBN
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ISSN
1350-4177
e-ISSN
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Number of pages
2
Pages from-to
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Publisher name
UTINAM Universite de Franche-Comte
Place of publication
Basancon, Francie
Event location
La Grande Motte, Francie
Event date
Jan 1, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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