Colloidal Synthesis of Magnetic CuCrS Nanocrystals and Nanoclusters.
Nanocrystals and nanoclusters of the room-temperature magnetic spinel CuCrS have been synthesized using a facile solution-based method. The synthesis involves hot injection of an excess of 1-dodecanethiol (1-DDT) into a boiling coordinating solvent containing CuCl and CrCl·6H O. Using octadecylamine...
| Publicado en: | Journal of the American Chemical Society Vol. 133; no. 51; pp. 20716 - 20720 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
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American Chemical Society
12/28/2011
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=70199392&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 70199392 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 12/28/2011 vid: 133 iid: 51 pid: 997 pub: American Chemical Society artinfo: ui: 70199392 10.1021/ja209575w ppf: 20716 ppct: 4 formats: tig: atl: Colloidal Synthesis of Magnetic CuCrS Nanocrystals and Nanoclusters. aug: au: Ramasamy, Karthik Mazumdar, Dipanjan Ziyou Zhou Yu-Hsiang A. Wang Gupta, Arunava affil: Center for Materials for Information Technology, University of Alabama, Tuscaloosa, Alabama 35487, United States su: Nanocrystals Organic synthesis Thermomagnetism X-ray diffraction Ferromagnetism Spinel sug: subj: Nanocrystals Organic synthesis Thermomagnetism X-ray diffraction Ferromagnetism Spinel ab: Nanocrystals and nanoclusters of the room-temperature magnetic spinel CuCrS have been synthesized using a facile solution-based method. The synthesis involves hot injection of an excess of 1-dodecanethiol (1-DDT) into a boiling coordinating solvent containing CuCl and CrCl·6H O. Using octadecylamine (ODA) as a solvent yields cube-shaped nanocrystals with an average size of 20 ± 2 nm, while with oleylamine (OLA), nanoclusters with an average size of 31 ± 2.5 nm are obtained. In both cases, powder X-ray diffraction patterns confirmed the formation of the pure spinel phase without any impurities. While the synthesized powders are superparamagnetic near room temperature, they exhibit ferromagnetic behavior at lower temperatures, with magnetization (M) values of 30 emu/g (1.63 μ/f.u.) and 33 emu/g (1.79 μ/f.u.) for the ODA- and OLA-capped nanocrystals and nanoclusters, respectively, at 5 K. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2011 holdings: @attributes: islocal: N |
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