DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeon, Bong-Sik | ko |
dc.contributor.author | Lee, Seung-Jun | ko |
dc.contributor.author | Kim, Jong-Duk | ko |
dc.date.accessioned | 2013-03-07T20:56:47Z | - |
dc.date.available | 2013-03-07T20:56:47Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2008-09 | - |
dc.identifier.citation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.8, no.9, pp.4574 - 4578 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | http://hdl.handle.net/10203/91302 | - |
dc.description.abstract | Magnetite nanoparticles were synthesized by chemical coprecipitation of ferric and ferrous aqueous solutions via regulation of the microenvironment at ambient conditions. Nanocrystals having an average diameter of 6 to 12 nm were obtained by picoliter droplets, whereas only 9 nm diameter nanocrystals were prepared by microliter droplets. The size of the nanocrystals was controlled by a precise balance of reactions of hydroxide ions with positive ions at the surface layer and inner layers of the droplets. The crystal structure and average size were analyzed by X-ray diffraction pattern and transmission electron microscope images. The field dependence and temperature dependence on magnetization measured by a superconducting quantum interference device demonstrate that the as-synthesized particles are superparamagnetic at room temperature and have a size-dependent magnetic property. The anisotropy constant calculated by the blocking temperature and particle size was found to decrease with increasing particle size. | - |
dc.language | English | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | GAMMA-FE2O3 | - |
dc.title | Controlled Growth of Iron Oxide Nanoparticles in the Aqueous Microdroplets | - |
dc.type | Article | - |
dc.identifier.wosid | 000260776900044 | - |
dc.identifier.scopusid | 2-s2.0-55849089074 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 9 | - |
dc.citation.beginningpage | 4574 | - |
dc.citation.endingpage | 4578 | - |
dc.citation.publicationname | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.contributor.localauthor | Kim, Jong-Duk | - |
dc.contributor.nonIdAuthor | Lee, Seung-Jun | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | Magnetite | - |
dc.subject.keywordAuthor | Nanoparticle | - |
dc.subject.keywordAuthor | Coprecipitation | - |
dc.subject.keywordAuthor | Microjet | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | GAMMA-FE2O3 | - |
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