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Article: Magnetite (Fe 3O 4) tetrakaidecahedral microcrystals: Synthesis, characterization, and micro-Raman study

TitleMagnetite (Fe 3O 4) tetrakaidecahedral microcrystals: Synthesis, characterization, and micro-Raman study
Authors
KeywordsCrystal growth
Magnetite
Microcrystal
Raman spectroscopy
Issue Date2011
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/matchar
Citation
Materials Characterization, 2011, v. 62 n. 1, p. 148-151 How to Cite?
AbstractA novel and simple method to prepare Fe 3O 4 tetrakaidecahedral microcrystals has been demonstrated using a two-step refluxing and calcination process. Firstly, Fe(NO 3) 3 9H 2O was dissolved in diethylene glycol by refluxing at 190 °C for 3 h. Secondly, the above solutions were injected into covered quartz crucibles and placed in a tube furnace, and the as-prepared Fe 3O 4 tetrakaidecahedra were obtained after calcination at 800 °C in an N 2 atmosphere for 3 h. Fe 3O 4 tetrakaidecahedra were studied with Raman scattering spectroscopy, and a clear direct phase transition from magnetite to hematite (α-Fe 2O 3) due to laser irradiation was observed in the Raman scattering measurements. This oxidation route is specific to magnetite of larger crystalline size, which is coincident with the microcrystalline feature revealed by scanning electron microscopy measurements. © 2010 Elsevier Inc. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/137494
ISSN
2015 Impact Factor: 2.383
2015 SCImago Journal Rankings: 1.267
ISI Accession Number ID
Funding AgencyGrant Number
Educational Commission of Zhejiang Province of ChinaZ200909406
Zhejiang Qianjiang Talent Project2010R10025
National Science Foundation of China20806075
Zhejiang Provincial Natural Science Foundation of ChinaY4080272
HKU
HK-RGC-AoEP-03/08
Funding Information:

Financial support from the Educational Commission of Zhejiang Province of China (Z200909406), the Zhejiang Qianjiang Talent Project (2010R10025), the National Science Foundation of China (20806075), and the grant of the Zhejiang Provincial Natural Science Foundation of China (Y4080272), SJX and JQN acknowledge the supports from HKU Large-Equipment-Items Fund and HK-RGC-AoE Grant (P-03/08).

References

 

DC FieldValueLanguage
dc.contributor.authorGuo, Cen_HK
dc.contributor.authorHu, Yen_HK
dc.contributor.authorQian, Hen_HK
dc.contributor.authorNing, Jen_HK
dc.contributor.authorXu, Sen_HK
dc.date.accessioned2011-08-26T14:26:17Z-
dc.date.available2011-08-26T14:26:17Z-
dc.date.issued2011en_HK
dc.identifier.citationMaterials Characterization, 2011, v. 62 n. 1, p. 148-151en_HK
dc.identifier.issn1044-5803en_HK
dc.identifier.urihttp://hdl.handle.net/10722/137494-
dc.description.abstractA novel and simple method to prepare Fe 3O 4 tetrakaidecahedral microcrystals has been demonstrated using a two-step refluxing and calcination process. Firstly, Fe(NO 3) 3 9H 2O was dissolved in diethylene glycol by refluxing at 190 °C for 3 h. Secondly, the above solutions were injected into covered quartz crucibles and placed in a tube furnace, and the as-prepared Fe 3O 4 tetrakaidecahedra were obtained after calcination at 800 °C in an N 2 atmosphere for 3 h. Fe 3O 4 tetrakaidecahedra were studied with Raman scattering spectroscopy, and a clear direct phase transition from magnetite to hematite (α-Fe 2O 3) due to laser irradiation was observed in the Raman scattering measurements. This oxidation route is specific to magnetite of larger crystalline size, which is coincident with the microcrystalline feature revealed by scanning electron microscopy measurements. © 2010 Elsevier Inc. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/matcharen_HK
dc.relation.ispartofMaterials Characterizationen_HK
dc.subjectCrystal growthen_HK
dc.subjectMagnetiteen_HK
dc.subjectMicrocrystalen_HK
dc.subjectRaman spectroscopyen_HK
dc.titleMagnetite (Fe 3O 4) tetrakaidecahedral microcrystals: Synthesis, characterization, and micro-Raman studyen_HK
dc.typeArticleen_HK
dc.identifier.emailNing, J: ningjq@hkucc.hku.hken_HK
dc.identifier.emailXu, S: sjxu@hku.hken_HK
dc.identifier.authorityNing, J=rp00769en_HK
dc.identifier.authorityXu, S=rp00821en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.matchar.2010.10.016en_HK
dc.identifier.scopuseid_2-s2.0-78751569922en_HK
dc.identifier.hkuros190372en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78751569922&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume62en_HK
dc.identifier.issue1en_HK
dc.identifier.spage148en_HK
dc.identifier.epage151en_HK
dc.identifier.isiWOS:000287460200020-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridGuo, C=15839611900en_HK
dc.identifier.scopusauthoridHu, Y=8225096800en_HK
dc.identifier.scopusauthoridQian, H=8300305300en_HK
dc.identifier.scopusauthoridNing, J=15845992800en_HK
dc.identifier.scopusauthoridXu, S=7404439005en_HK
dc.identifier.citeulike8269092-

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