CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000086

Synthesis and microstructure of cobalt ferrite nanoparticles

Identifieur interne : 000086 ( PascalFrancis/Corpus ); précédent : 000085; suivant : 000087

Synthesis and microstructure of cobalt ferrite nanoparticles

Auteurs : L. Ajroudi ; S. Villain ; V. Madigou ; N. Mliki ; Ch. Leroux

Source :

Journal of crystal growth [ 0022-0248 ] ; 2010.

RBID : Pascal:10-0379730

Descripteurs français

Pascal (Inist)
- Microstructure, Nanoparticule, Nanomatériau, Diffraction RX, Microscopie électronique transmission, Spectrométrie dispersive, Composition chimique, Dimension particule, Cobalt, Spectrométrie transformée Fourier, Energie activation, Dépendance température, Ferrite de cobalt, CoxFe3-xO4, 8107.

English descriptors

KwdEn :
- Activation energy, Chemical composition, Cobalt, Dispersive spectrometry, Fourier transform spectroscopy, Microstructure, Nanoparticles, Nanostructured materials, Particle size, Temperature dependence, Transmission electron microscopy, XRD.

Abstract

Cobalt ferrites (Co_xFe_3-xO₄) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-ray diffraction and transmission electron microscopy coupled with energy dispersive spectroscopy. The nanoparticles are highly crystallized with a homogeneous chemical composition. The particle size varies from 4 up to 7.5 nm, depending on the cobalt content. The smallest particles, with a size of 4 nm, are obtained for high cobalt content. These particles also have the highest micro-structural strain. Catalytic measurements were realized using Fourier transform infrared spectroscopy. The lowest activation energy and the highest conversion rate are obtained for Co_1.8Fe_2.4O₄ in the 400-500 °C temperature range.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0022-0248`
A02	`01`			`@0 JCRGAE`
A03		`1`		`@0 J. cryst. growth`
A05				`@2 312`
A06				`@2 16-17`
A08	`01`	`1`	`ENG`	`@1 Synthesis and microstructure of cobalt ferrite nanoparticles`
A11	`01`	`1`		`@1 AJROUDI (L.)`
A11	`02`	`1`		`@1 VILLAIN (S.)`
A11	`03`	`1`		`@1 MADIGOU (V.)`
A11	`04`	`1`		`@1 MLIKI (N.)`
A11	`05`	`1`		`@1 LEROUX (Ch.)`
A14	`01`			`@1 IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132 @2 83957 La Garde @3 FRA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 5 aut.`
A14	`02`			`@1 LMOP, Physics Department, Faculty of Sciences of Tunis @2 2092 Tunis @3 TUN @Z 1 aut. @Z 4 aut.`
A20				`@1 2465-2471`
A21				`@1 2010`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 13507 @5 354000193808240330`
A44				`@0 0000 @1 © 2010 INIST-CNRS. All rights reserved.`
A45				`@0 44 ref.`
A47	`01`	`1`		`@0 10-0379730`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of crystal growth`
A66	`01`			`@0 NLD`
C01	`01`		`ENG`	@0 Cobalt ferrites (Co_xFe_3-xO₄) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-ray diffraction and transmission electron microscopy coupled with energy dispersive spectroscopy. The nanoparticles are highly crystallized with a homogeneous chemical composition. The particle size varies from 4 up to 7.5 nm, depending on the cobalt content. The smallest particles, with a size of 4 nm, are obtained for high cobalt content. These particles also have the highest micro-structural strain. Catalytic measurements were realized using Fourier transform infrared spectroscopy. The lowest activation energy and the highest conversion rate are obtained for Co_1.8Fe_2.4O₄ in the 400-500 °C temperature range.
C02	`01`	`3`		`@0 001B80A07Z`
C03	`01`	`3`	`FRE`	`@0 Microstructure @5 01`
C03	`01`	`3`	`ENG`	`@0 Microstructure @5 01`
C03	`02`	`3`	`FRE`	`@0 Nanoparticule @5 02`
C03	`02`	`3`	`ENG`	`@0 Nanoparticles @5 02`
C03	`03`	`3`	`FRE`	`@0 Nanomatériau @5 03`
C03	`03`	`3`	`ENG`	`@0 Nanostructured materials @5 03`
C03	`04`	`3`	`FRE`	`@0 Diffraction RX @5 04`
C03	`04`	`3`	`ENG`	`@0 XRD @5 04`
C03	`05`	`3`	`FRE`	`@0 Microscopie électronique transmission @5 05`
C03	`05`	`3`	`ENG`	`@0 Transmission electron microscopy @5 05`
C03	`06`	`X`	`FRE`	`@0 Spectrométrie dispersive @5 06`
C03	`06`	`X`	`ENG`	`@0 Dispersive spectrometry @5 06`
C03	`06`	`X`	`SPA`	`@0 Espectrometría dispersiva @5 06`
C03	`07`	`3`	`FRE`	`@0 Composition chimique @5 07`
C03	`07`	`3`	`ENG`	`@0 Chemical composition @5 07`
C03	`08`	`3`	`FRE`	`@0 Dimension particule @5 08`
C03	`08`	`3`	`ENG`	`@0 Particle size @5 08`
C03	`09`	`3`	`FRE`	`@0 Cobalt @2 NC @5 09`
C03	`09`	`3`	`ENG`	`@0 Cobalt @2 NC @5 09`
C03	`10`	`3`	`FRE`	`@0 Spectrométrie transformée Fourier @5 10`
C03	`10`	`3`	`ENG`	`@0 Fourier transform spectroscopy @5 10`
C03	`11`	`3`	`FRE`	`@0 Energie activation @5 11`
C03	`11`	`3`	`ENG`	`@0 Activation energy @5 11`
C03	`12`	`3`	`FRE`	`@0 Dépendance température @5 12`
C03	`12`	`3`	`ENG`	`@0 Temperature dependence @5 12`
C03	`13`	`3`	`FRE`	`@0 Ferrite de cobalt @4 INC @5 46`
C03	`14`	`3`	`FRE`	`@0 CoxFe3-xO4 @4 INC @5 47`
C03	`15`	`3`	`FRE`	`@0 8107 @4 INC @5 71`
N21				`@1 242`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 10-0379730 INIST
ET :	Synthesis and microstructure of cobalt ferrite nanoparticles
AU :	AJROUDI (L.); VILLAIN (S.); MADIGOU (V.); MLIKI (N.); LEROUX (Ch.)
AF :	IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132/83957 La Garde/France (1 aut., 2 aut., 3 aut., 5 aut.); LMOP, Physics Department, Faculty of Sciences of Tunis/2092 Tunis/Tunisie (1 aut., 4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of crystal growth; ISSN 0022-0248; Coden JCRGAE; Pays-Bas; Da. 2010; Vol. 312; No. 16-17; Pp. 2465-2471; Bibl. 44 ref.
LA :	Anglais
EA :	Cobalt ferrites (Co_xFe_3-xO₄) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-ray diffraction and transmission electron microscopy coupled with energy dispersive spectroscopy. The nanoparticles are highly crystallized with a homogeneous chemical composition. The particle size varies from 4 up to 7.5 nm, depending on the cobalt content. The smallest particles, with a size of 4 nm, are obtained for high cobalt content. These particles also have the highest micro-structural strain. Catalytic measurements were realized using Fourier transform infrared spectroscopy. The lowest activation energy and the highest conversion rate are obtained for Co_1.8Fe_2.4O₄ in the 400-500 °C temperature range.
CC :	001B80A07Z
FD :	Microstructure; Nanoparticule; Nanomatériau; Diffraction RX; Microscopie électronique transmission; Spectrométrie dispersive; Composition chimique; Dimension particule; Cobalt; Spectrométrie transformée Fourier; Energie activation; Dépendance température; Ferrite de cobalt; CoxFe3-xO4; 8107
ED :	Microstructure; Nanoparticles; Nanostructured materials; XRD; Transmission electron microscopy; Dispersive spectrometry; Chemical composition; Particle size; Cobalt; Fourier transform spectroscopy; Activation energy; Temperature dependence
SD :	Espectrometría dispersiva
LO :	INIST-13507.354000193808240330
ID :	10-0379730

Links to Exploration step

Pascal:10-0379730

Le document en format XML

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<term>Dispersive spectrometry</term>
<term>Fourier transform spectroscopy</term>
<term>Microstructure</term>
<term>Nanoparticles</term>
<term>Nanostructured materials</term>
<term>Particle size</term>
<term>Temperature dependence</term>
<term>Transmission electron microscopy</term>
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<term>Nanomatériau</term>
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<term>Microscopie électronique transmission</term>
<term>Spectrométrie dispersive</term>
<term>Composition chimique</term>
<term>Dimension particule</term>
<term>Cobalt</term>
<term>Spectrométrie transformée Fourier</term>
<term>Energie activation</term>
<term>Dépendance température</term>
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<front><div type="abstract" xml:lang="en">Cobalt ferrites (Co<sub>x</sub>
Fe<sub>3-x</sub>
O<sub>4</sub>
) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-ray diffraction and transmission electron microscopy coupled with energy dispersive spectroscopy. The nanoparticles are highly crystallized with a homogeneous chemical composition. The particle size varies from 4 up to 7.5 nm, depending on the cobalt content. The smallest particles, with a size of 4 nm, are obtained for high cobalt content. These particles also have the highest micro-structural strain. Catalytic measurements were realized using Fourier transform infrared spectroscopy. The lowest activation energy and the highest conversion rate are obtained for Co<sub>1.8</sub>
Fe<sub>2.4</sub>
O<sub>4</sub>
 in the 400-500 °C temperature range.</div>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
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<fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1>
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<fA20><s1>2465-2471</s1>
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<fC01 i1="01" l="ENG"><s0>Cobalt ferrites (Co<sub>x</sub>
Fe<sub>3-x</sub>
O<sub>4</sub>
) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-ray diffraction and transmission electron microscopy coupled with energy dispersive spectroscopy. The nanoparticles are highly crystallized with a homogeneous chemical composition. The particle size varies from 4 up to 7.5 nm, depending on the cobalt content. The smallest particles, with a size of 4 nm, are obtained for high cobalt content. These particles also have the highest micro-structural strain. Catalytic measurements were realized using Fourier transform infrared spectroscopy. The lowest activation energy and the highest conversion rate are obtained for Co<sub>1.8</sub>
Fe<sub>2.4</sub>
O<sub>4</sub>
 in the 400-500 °C temperature range.</s0>
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<fC02 i1="01" i2="3"><s0>001B80A07Z</s0>
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<s5>01</s5>
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<s5>01</s5>
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<s5>02</s5>
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<s5>04</s5>
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<s5>05</s5>
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<fC03 i1="05" i2="3" l="ENG"><s0>Transmission electron microscopy</s0>
<s5>05</s5>
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<s5>06</s5>
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<s5>06</s5>
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<s5>06</s5>
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<s5>07</s5>
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<fC03 i1="07" i2="3" l="ENG"><s0>Chemical composition</s0>
<s5>07</s5>
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<s5>08</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG"><s0>Particle size</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Cobalt</s0>
<s2>NC</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Cobalt</s0>
<s2>NC</s2>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Spectrométrie transformée Fourier</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Fourier transform spectroscopy</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Energie activation</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Activation energy</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Dépendance température</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Temperature dependence</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Ferrite de cobalt</s0>
<s4>INC</s4>
<s5>46</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>CoxFe3-xO4</s0>
<s4>INC</s4>
<s5>47</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>8107</s0>
<s4>INC</s4>
<s5>71</s5>
</fC03>
<fN21><s1>242</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 10-0379730 INIST</NO>
<ET>Synthesis and microstructure of cobalt ferrite nanoparticles</ET>
<AU>AJROUDI (L.); VILLAIN (S.); MADIGOU (V.); MLIKI (N.); LEROUX (Ch.)</AU>
<AF>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132/83957 La Garde/France (1 aut., 2 aut., 3 aut., 5 aut.); LMOP, Physics Department, Faculty of Sciences of Tunis/2092 Tunis/Tunisie (1 aut., 4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of crystal growth; ISSN 0022-0248; Coden JCRGAE; Pays-Bas; Da. 2010; Vol. 312; No. 16-17; Pp. 2465-2471; Bibl. 44 ref.</SO>
<LA>Anglais</LA>
<EA>Cobalt ferrites (Co<sub>x</sub>
Fe<sub>3-x</sub>
O<sub>4</sub>
) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-ray diffraction and transmission electron microscopy coupled with energy dispersive spectroscopy. The nanoparticles are highly crystallized with a homogeneous chemical composition. The particle size varies from 4 up to 7.5 nm, depending on the cobalt content. The smallest particles, with a size of 4 nm, are obtained for high cobalt content. These particles also have the highest micro-structural strain. Catalytic measurements were realized using Fourier transform infrared spectroscopy. The lowest activation energy and the highest conversion rate are obtained for Co<sub>1.8</sub>
Fe<sub>2.4</sub>
O<sub>4</sub>
 in the 400-500 °C temperature range.</EA>
<CC>001B80A07Z</CC>
<FD>Microstructure; Nanoparticule; Nanomatériau; Diffraction RX; Microscopie électronique transmission; Spectrométrie dispersive; Composition chimique; Dimension particule; Cobalt; Spectrométrie transformée Fourier; Energie activation; Dépendance température; Ferrite de cobalt; CoxFe3-xO4; 8107</FD>
<ED>Microstructure; Nanoparticles; Nanostructured materials; XRD; Transmission electron microscopy; Dispersive spectrometry; Chemical composition; Particle size; Cobalt; Fourier transform spectroscopy; Activation energy; Temperature dependence</ED>
<SD>Espectrometría dispersiva</SD>
<LO>INIST-13507.354000193808240330</LO>
<ID>10-0379730</ID>
</server>
</inist>
</record>

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Synthesis and microstructure of cobalt ferrite nanoparticles

Synthesis and microstructure of cobalt ferrite nanoparticles

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