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

D 2008

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

OSTŘÍŽEK, Petr, Jiří PINKAS, Radek ZBOŘIL, Zdeněk MORAVEC, Petr BEZDIČKA et. al.

Základní údaje

Originální název

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

Název česky

Příprava nanoskopického kobaltnatého ferritu sonolýzou komplexů M(acac)3

Autoři

OSTŘÍŽEK, Petr (203 Česká republika), Jiří PINKAS (203 Česká republika, garant), Radek ZBOŘIL (203 Česká republika), Zdeněk MORAVEC (203 Česká republika) a Petr BEZDIČKA (203 Česká republika)

Vydání

1. vyd. Basancon, Francie, 11 th Meeting of the European Society of Sonochemistry, od s. 181-182, 2 s. 2008

Nakladatel

UTINAM Universite de Franche-Comte

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Francie

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.796

Kód RIV

RIV/00216224:14310/08:00026052

Organizační jednotka

Přírodovědecká fakulta

ISSN

Klíčová slova anglicky

Sonochemistry; Iron; Cobalt; Oxides; Ferrite; Nanoparticles

Štítky

cobalt, Ferrite, Iron, nanoparticles, Oxides, Sonochemistry

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 6. 4. 2010 14:49, prof. RNDr. Jiří Pinkas, Ph.D.

Anotace

ORIG CZ

V originále

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.

Česky

Studium přípravy nanoskopického kobaltnatého ferritu CoFe2O4 sonolýzou komplexů M(acac)n, M = Fe, Co; n = 2, 3.

Návaznosti

MSM0021622410, záměr

Název: Fyzikální a chemické vlastnosti pokročilých materiálů a struktur

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Fyzikální a chemické vlastnosti pokročilých materiálů a struktur

Citovat

OSTŘÍŽEK, Petr, Jiří PINKAS, Radek ZBOŘIL, Zdeněk MORAVEC a Petr BEZDIČKA. Nanoscopic Cobalt Ferrite by Sonolysis of M(acac)3 Complexes. In 11 th Meeting of the European Society of Sonochemistry. 1. vyd. Basancon, Francie: UTINAM Universite de Franche-Comte, 2008, s. 181-182. ISSN 1350-4177.

@inproceedings{768957,
   author = {Ostřížek, Petr and Pinkas, Jiří and Zbořil, Radek and Moravec, Zdeněk and Bezdička, Petr},
   address = {Basancon, Francie},
   booktitle = {11 th Meeting of the European Society of Sonochemistry},
   edition = {1},
   keywords = {Sonochemistry; Iron; Cobalt; Oxides; Ferrite; Nanoparticles},
   language = {eng},
   location = {Basancon, Francie},
   pages = {181-182},
   publisher = {UTINAM Universite de Franche-Comte},
   title = {Nanoscopic Cobalt Ferrite by Sonolysis of M(acac)3 Complexes},
   year = {2008}
}

TY  - JOUR
ID  - 768957
AU  - Ostřížek, Petr - Pinkas, Jiří - Zbořil, Radek - Moravec, Zdeněk - Bezdička, Petr
PY  - 2008
TI  - Nanoscopic Cobalt Ferrite by Sonolysis of M(acac)3 Complexes
PB  - UTINAM Universite de Franche-Comte
CY  - Basancon, Francie
KW  - Sonochemistry
KW  - Iron
KW  - Cobalt
KW  - Oxides
KW  - Ferrite
KW  - Nanoparticles
N2  - 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.
ER  -

OSTŘÍŽEK, Petr, Jiří PINKAS, Radek ZBOŘIL, Zdeněk MORAVEC a Petr BEZDIČKA. Nanoscopic Cobalt Ferrite by Sonolysis of M(acac)3 Complexes. In \textit{11 th Meeting of the European Society of Sonochemistry}. 1. vyd. Basancon, Francie: UTINAM Universite de Franche-Comte, 2008, s.~181-182. ISSN~1350-4177.

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