Synthesis and microstructure of cobalt ferrite nanoparticles
Identifieur interne : 000626 ( Main/Curation ); précédent : 000625; suivant : 000627Synthesis and microstructure of cobalt ferrite nanoparticles
Auteurs : L. Ajroudi [France, Tunisie] ; S. Villain [France] ; V. Madigou [France] ; N. Mliki [Tunisie] ; Ch. Leroux [France]Source :
- Journal of crystal growth [ 0022-0248 ] ; 2010.
Descripteurs français
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- Wicri :
- topic : Cobalt.
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Abstract
Cobalt ferrites (CoxFe3-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 Co1.8Fe2.4O4 in the 400-500 °C temperature range.
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Ajroudi</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1><s2>2092 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Villain, S" sort="Villain, S" uniqKey="Villain S" first="S." last="Villain">S. Villain</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author><author><name sortKey="Madigou, V" sort="Madigou, V" uniqKey="Madigou V" first="V." last="Madigou">V. Madigou</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author><author><name sortKey="Mliki, N" sort="Mliki, N" uniqKey="Mliki N" first="N." last="Mliki">N. Mliki</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1><s2>2092 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Leroux, Ch" sort="Leroux, Ch" uniqKey="Leroux C" first="Ch." last="Leroux">Ch. Leroux</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of crystal growth</title><title level="j" type="abbreviated">J. cryst. growth</title><idno type="ISSN">0022-0248</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of crystal growth</title><title level="j" type="abbreviated">J. cryst. growth</title><idno type="ISSN">0022-0248</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activation energy</term><term>Chemical composition</term><term>Cobalt</term><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><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Microstructure</term><term>Nanoparticule</term><term>Nanomatériau</term><term>Diffraction RX</term><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><term>Ferrite de cobalt</term><term>CoxFe3-xO4</term><term>8107</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Cobalt</term></keywords><keywords scheme="mix" xml:lang="en"><term>CoxFe3-xO4</term><term>nanomaterials</term><term>transmission electron microscopy</term></keywords></textClass></profileDesc></teiHeader><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></front></TEI><double idat="0022-0248:2010:Ajroudi L:synthesis:and:microstructure"><INIST><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Synthesis and microstructure of cobalt ferrite nanoparticles</title><author><name sortKey="Ajroudi, L" sort="Ajroudi, L" uniqKey="Ajroudi L" first="L." last="Ajroudi">L. Ajroudi</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1><s2>2092 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Villain, S" sort="Villain, S" uniqKey="Villain S" first="S." last="Villain">S. Villain</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author><author><name sortKey="Madigou, V" sort="Madigou, V" uniqKey="Madigou V" first="V." last="Madigou">V. Madigou</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author><author><name sortKey="Mliki, N" sort="Mliki, N" uniqKey="Mliki N" first="N." last="Mliki">N. Mliki</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1><s2>2092 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Leroux, Ch" sort="Leroux, Ch" uniqKey="Leroux C" first="Ch." last="Leroux">Ch. Leroux</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">10-0379730</idno><date when="2010">2010</date><idno type="stanalyst">PASCAL 10-0379730 INIST</idno><idno type="RBID">Pascal:10-0379730</idno><idno type="wicri:Area/PascalFrancis/Corpus">000086</idno><idno type="wicri:Area/PascalFrancis/Curation">000209</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000078</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000078</idno><idno type="wicri:doubleKey">0022-0248:2010:Ajroudi L:synthesis:and:microstructure</idno><idno type="wicri:Area/Main/Merge">000629</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Synthesis and microstructure of cobalt ferrite nanoparticles</title><author><name sortKey="Ajroudi, L" sort="Ajroudi, L" uniqKey="Ajroudi L" first="L." last="Ajroudi">L. Ajroudi</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1><s2>2092 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Villain, S" sort="Villain, S" uniqKey="Villain S" first="S." last="Villain">S. Villain</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author><author><name sortKey="Madigou, V" sort="Madigou, V" uniqKey="Madigou V" first="V." last="Madigou">V. Madigou</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author><author><name sortKey="Mliki, N" sort="Mliki, N" uniqKey="Mliki N" first="N." last="Mliki">N. Mliki</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LMOP, Physics Department, Faculty of Sciences of Tunis</s1><s2>2092 Tunis</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region nuts="2">Gouvernorat de Tunis</region></placeName></affiliation></author><author><name sortKey="Leroux, Ch" sort="Leroux, Ch" uniqKey="Leroux C" first="Ch." last="Leroux">Ch. Leroux</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>IM2NP (UMR-CNRS 6242), Université du Sud Toulon-Var (USTV), Bât. R, BP 20132</s1><s2>83957 La Garde</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">La Garde</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of crystal growth</title><title level="j" type="abbreviated">J. cryst. growth</title><idno type="ISSN">0022-0248</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of crystal growth</title><title level="j" type="abbreviated">J. cryst. growth</title><idno type="ISSN">0022-0248</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activation energy</term><term>Chemical composition</term><term>Cobalt</term><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><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Microstructure</term><term>Nanoparticule</term><term>Nanomatériau</term><term>Diffraction RX</term><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><term>Ferrite de cobalt</term><term>CoxFe3-xO4</term><term>8107</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Cobalt</term></keywords></textClass></profileDesc></teiHeader><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></front></TEI></INIST><HAL><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Synthesis and microstructure of cobalt ferrite nanoparticles</title><author><name sortKey="Ajroudi, Lilia" sort="Ajroudi, Lilia" uniqKey="Ajroudi L" first="Lilia" last="Ajroudi">Lilia Ajroudi</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-199957" status="VALID"><idno type="RNSR">201220336G</idno><orgName>Institut des Matériaux, de Microélectronique et des Nanosciences de Provence</orgName><orgName type="acronym">IM2NP</orgName><date type="start">2012</date><desc><address><addrLine>Faculté des SciencesAvenue Escadrille Normandie NiemenCase 14213397 Marseille Cedex 20</addrLine><country key="FR"></country></address><ref type="url">http://www.im2np.fr/</ref></desc><listRelation><relation name="UMR7334" active="#struct-303091" type="direct"></relation><relation name="UMR7334" active="#struct-198056" type="direct"></relation><relation name="UMR7334" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle name="UMR7334" active="#struct-303091" type="direct"><org type="institution" xml:id="struct-303091" status="VALID"><orgName>Université de Toulon</orgName><orgName type="acronym">UTLN</orgName><desc><address><addrLine>Avenue de l'Université - BP 20132 - 83957 La Garde Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-tln.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-198056" type="direct"><org type="institution" xml:id="struct-198056" status="VALID"><idno type="IdRef">15863621X</idno><idno type="ISNI">0000 0001 2176 4817</idno><orgName>Aix Marseille Université</orgName><orgName type="acronym">AMU</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Aix-Marseille UniversitéJardins du Pharo58 Boulevard Charles Livon13284 Marseille cedex 7</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-amu.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="ISNI">0000000122597504</idno> <idno type="IdRef">02636817X</idno> <orgName>Centre National de la Recherche Scientifique</orgName> <orgName type="acronym">CNRS</orgName> <date type="start">1939-10-19</date> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.cnrs.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Marseille</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName><orgName type="university">Université d'Aix-Marseille</orgName></affiliation></author><author><name sortKey="Villain, S" sort="Villain, S" uniqKey="Villain S" first="S." last="Villain">S. 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Mliki</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-169798" status="VALID"><orgName>département de physique de la faculté des sciences de Tunis</orgName><desc><address><addrLine>FST Campus Universitaire 2092 El Manar Tunis</addrLine><country key="TN"></country></address></desc><listRelation><relation active="#struct-411560" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-411560" type="direct"><org type="institution" xml:id="struct-411560" status="INCOMING"><orgName>Université de Tunis</orgName><desc><address><country key="TN"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region type="region" nuts="2">Gouvernorat de Tunis</region></placeName><orgName type="university">Université de Tunis</orgName></affiliation></author><author><name sortKey="Leroux, Christine" sort="Leroux, Christine" uniqKey="Leroux C" first="Christine" last="Leroux">Christine Leroux</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-199957" status="VALID"><idno type="RNSR">201220336G</idno><orgName>Institut des Matériaux, de Microélectronique et des Nanosciences de Provence</orgName><orgName type="acronym">IM2NP</orgName><date type="start">2012</date><desc><address><addrLine>Faculté des SciencesAvenue Escadrille Normandie NiemenCase 14213397 Marseille Cedex 20</addrLine><country key="FR"></country></address><ref type="url">http://www.im2np.fr/</ref></desc><listRelation><relation name="UMR7334" active="#struct-303091" type="direct"></relation><relation name="UMR7334" active="#struct-198056" type="direct"></relation><relation name="UMR7334" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle name="UMR7334" active="#struct-303091" type="direct"><org type="institution" xml:id="struct-303091" status="VALID"><orgName>Université de Toulon</orgName><orgName type="acronym">UTLN</orgName><desc><address><addrLine>Avenue de l'Université - 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BP 20132 - 83957 La Garde Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-tln.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-198056" type="direct"><org type="institution" xml:id="struct-198056" status="VALID"><idno type="IdRef">15863621X</idno><idno type="ISNI">0000 0001 2176 4817</idno><orgName>Aix Marseille Université</orgName><orgName type="acronym">AMU</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Aix-Marseille UniversitéJardins du Pharo58 Boulevard Charles Livon13284 Marseille cedex 7</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-amu.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="ISNI">0000000122597504</idno> <idno type="IdRef">02636817X</idno> <orgName>Centre National de la Recherche Scientifique</orgName> <orgName type="acronym">CNRS</orgName> <date type="start">1939-10-19</date> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.cnrs.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Marseille</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName><orgName type="university">Université d'Aix-Marseille</orgName></affiliation></author><author><name sortKey="Villain, S" sort="Villain, S" uniqKey="Villain S" first="S." last="Villain">S. Villain</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-199957" status="VALID"><idno type="RNSR">201220336G</idno><orgName>Institut des Matériaux, de Microélectronique et des Nanosciences de Provence</orgName><orgName type="acronym">IM2NP</orgName><date type="start">2012</date><desc><address><addrLine>Faculté des SciencesAvenue Escadrille Normandie NiemenCase 14213397 Marseille Cedex 20</addrLine><country key="FR"></country></address><ref type="url">http://www.im2np.fr/</ref></desc><listRelation><relation name="UMR7334" active="#struct-303091" type="direct"></relation><relation name="UMR7334" active="#struct-198056" type="direct"></relation><relation name="UMR7334" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle name="UMR7334" active="#struct-303091" type="direct"><org type="institution" xml:id="struct-303091" status="VALID"><orgName>Université de Toulon</orgName><orgName type="acronym">UTLN</orgName><desc><address><addrLine>Avenue de l'Université - BP 20132 - 83957 La Garde Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-tln.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-198056" type="direct"><org type="institution" xml:id="struct-198056" status="VALID"><idno type="IdRef">15863621X</idno><idno type="ISNI">0000 0001 2176 4817</idno><orgName>Aix Marseille Université</orgName><orgName type="acronym">AMU</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Aix-Marseille UniversitéJardins du Pharo58 Boulevard Charles Livon13284 Marseille cedex 7</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-amu.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="ISNI">0000000122597504</idno> <idno type="IdRef">02636817X</idno> <orgName>Centre National de la Recherche Scientifique</orgName> <orgName type="acronym">CNRS</orgName> <date type="start">1939-10-19</date> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.cnrs.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Marseille</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName><orgName type="university">Université d'Aix-Marseille</orgName></affiliation></author><author><name sortKey="Madigou, V" sort="Madigou, V" uniqKey="Madigou V" first="V." last="Madigou">V. Madigou</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-199957" status="VALID"><idno type="RNSR">201220336G</idno><orgName>Institut des Matériaux, de Microélectronique et des Nanosciences de Provence</orgName><orgName type="acronym">IM2NP</orgName><date type="start">2012</date><desc><address><addrLine>Faculté des SciencesAvenue Escadrille Normandie NiemenCase 14213397 Marseille Cedex 20</addrLine><country key="FR"></country></address><ref type="url">http://www.im2np.fr/</ref></desc><listRelation><relation name="UMR7334" active="#struct-303091" type="direct"></relation><relation name="UMR7334" active="#struct-198056" type="direct"></relation><relation name="UMR7334" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle name="UMR7334" active="#struct-303091" type="direct"><org type="institution" xml:id="struct-303091" status="VALID"><orgName>Université de Toulon</orgName><orgName type="acronym">UTLN</orgName><desc><address><addrLine>Avenue de l'Université - BP 20132 - 83957 La Garde Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-tln.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-198056" type="direct"><org type="institution" xml:id="struct-198056" status="VALID"><idno type="IdRef">15863621X</idno><idno type="ISNI">0000 0001 2176 4817</idno><orgName>Aix Marseille Université</orgName><orgName type="acronym">AMU</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Aix-Marseille UniversitéJardins du Pharo58 Boulevard Charles Livon13284 Marseille cedex 7</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-amu.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="ISNI">0000000122597504</idno> <idno type="IdRef">02636817X</idno> <orgName>Centre National de la Recherche Scientifique</orgName> <orgName type="acronym">CNRS</orgName> <date type="start">1939-10-19</date> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.cnrs.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Marseille</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName><orgName type="university">Université d'Aix-Marseille</orgName></affiliation></author><author><name sortKey="Mliki, N" sort="Mliki, N" uniqKey="Mliki N" first="N." last="Mliki">N. Mliki</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-169798" status="VALID"><orgName>département de physique de la faculté des sciences de Tunis</orgName><desc><address><addrLine>FST Campus Universitaire 2092 El Manar Tunis</addrLine><country key="TN"></country></address></desc><listRelation><relation active="#struct-411560" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-411560" type="direct"><org type="institution" xml:id="struct-411560" status="INCOMING"><orgName>Université de Tunis</orgName><desc><address><country key="TN"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>Tunisie</country><placeName><settlement type="city">Tunis</settlement><region type="region" nuts="2">Gouvernorat de Tunis</region></placeName><orgName type="university">Université de Tunis</orgName></affiliation></author><author><name sortKey="Leroux, Christine" sort="Leroux, Christine" uniqKey="Leroux C" first="Christine" last="Leroux">Christine Leroux</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-199957" status="VALID"><idno type="RNSR">201220336G</idno><orgName>Institut des Matériaux, de Microélectronique et des Nanosciences de Provence</orgName><orgName type="acronym">IM2NP</orgName><date type="start">2012</date><desc><address><addrLine>Faculté des SciencesAvenue Escadrille Normandie NiemenCase 14213397 Marseille Cedex 20</addrLine><country key="FR"></country></address><ref type="url">http://www.im2np.fr/</ref></desc><listRelation><relation name="UMR7334" active="#struct-303091" type="direct"></relation><relation name="UMR7334" active="#struct-198056" type="direct"></relation><relation name="UMR7334" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle name="UMR7334" active="#struct-303091" type="direct"><org type="institution" xml:id="struct-303091" status="VALID"><orgName>Université de Toulon</orgName><orgName type="acronym">UTLN</orgName><desc><address><addrLine>Avenue de l'Université - BP 20132 - 83957 La Garde Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-tln.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-198056" type="direct"><org type="institution" xml:id="struct-198056" status="VALID"><idno type="IdRef">15863621X</idno><idno type="ISNI">0000 0001 2176 4817</idno><orgName>Aix Marseille Université</orgName><orgName type="acronym">AMU</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Aix-Marseille UniversitéJardins du Pharo58 Boulevard Charles Livon13284 Marseille cedex 7</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-amu.fr/</ref></desc></org></tutelle><tutelle name="UMR7334" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"> <idno type="ISNI">0000000122597504</idno> <idno type="IdRef">02636817X</idno> <orgName>Centre National de la Recherche Scientifique</orgName> <orgName type="acronym">CNRS</orgName> <date type="start">1939-10-19</date> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.cnrs.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Marseille</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName><orgName type="university">Université d'Aix-Marseille</orgName></affiliation></author></analytic><idno type="DOI">10.1016/j.jcrysgro.2010.05.024</idno><series><title level="j">Journal of Crystal Growth</title><idno type="ISSN">0022-0248</idno><imprint><date type="datePub">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>CoxFe3-xO4</term><term>nanomaterials</term><term>transmission electron microscopy</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Cobalt ferrites (CoxFe3-xO4) nanoparticles with various compositions were synthesized by a new non-aqueous synthesis method. The cobalt ferrites were characterized by X-rays 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 nm 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 have also 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 Co1.8Fe2.4O4, in the 400-500°C temperature range.</div></front></TEI></HAL></double></record>Pour manipuler ce document sous Unix (Dilib)
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