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Magnetic enhancement of g-Fe2O3 nanoparticles by sonochemical coating

hal.structure.identifierDepartment of Chemical Engineering and Chemistry
dc.contributor.authorSHAFI, Kurikka V. P. M.
hal.structure.identifierDepartment of Chemical Engineering and Chemistry
dc.contributor.authorULMAN, Abraham
hal.structure.identifierDepartment of Chemical Engineering and Chemistry
dc.contributor.authorDYAL, Ansil
hal.structure.identifierUniversity at Albany - Department of Chemistry
dc.contributor.authorYAN, Xingzhong
hal.structure.identifierUniversity at Albany - Department of Chemistry
dc.contributor.authorYANG, Nan-Loh
hal.structure.identifierInstitut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]
dc.contributor.authorESTOURNÈS, Claude
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOURNÈS, Léopold
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierDepartment of Materials Sciences and Engineering
dc.contributor.authorWHITE, Henry
hal.structure.identifierDepartment of Materials Sciences and Engineering
dc.contributor.authorRAFAILOVICH, Miriam
dc.date.issued2002
dc.identifier.issn0897-4756
dc.description.abstractEnWe show that sonochemistry is an efficient and facile route for quantitative coating of γ-Fe2O3 nanoparticles with octadecyltrihydrosilane (OTHS, CH3(CH2)17SiH3). The presence of C−H stretching (2950−2850 cm-1) and bending (1475−1375 cm-1) bands, and the absence of peaks at 2150 and 925 cm-1 (Si−H stretching and bending respectively) confirm the presence of grafted hydrocarbon chains in the irradiated sample, hence the reaction of OTHS with γ-Fe2O3 nanoparticles. The coated nanoparticles show increased magnetization compared to the uncoated ones. X-ray diffraction, magnetization studies, Mössbauer spectra, and electron paramagnetic resonance spectra reveal that the magnetic ordering is more prominent in the OTHS-coated γ-Fe2O3 sample because of improved crystallinity.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enMagnetism
dc.subject.enNanoparticles
dc.subject.enSonochemistry
dc.subject.enCoating
dc.subject.enIron oxide
dc.title.enMagnetic enhancement of g-Fe2O3 nanoparticles by sonochemical coating
dc.typeArticle de revue
dc.identifier.doi10.1021/cm011535+
dc.subject.halChimie/Matériaux
bordeaux.journalChemistry of Materials
bordeaux.page1778-1787
bordeaux.volume14
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-00713091
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00713091v1
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