Cobalt Nanoparticles Prepared By Three Different Methods

dc.creatorZola A.S.
dc.creatorRibeiro R.U.
dc.creatorBueno J.M.C.
dc.creatorZanchet D.
dc.creatorArroyo P.A.
dc.date2014
dc.date2015-06-25T17:54:10Z
dc.date2015-11-26T14:31:18Z
dc.date2015-06-25T17:54:10Z
dc.date2015-11-26T14:31:18Z
dc.date.accessioned2018-03-28T21:34:40Z
dc.date.available2018-03-28T21:34:40Z
dc.identifier
dc.identifierJournal Of Experimental Nanoscience. , v. 9, n. 4, p. 398 - 405, 2014.
dc.identifier17458080
dc.identifier10.1080/17458080.2012.662723
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84892630761&partnerID=40&md5=201a66b56699e439e8e457ed460d36ba
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/86618
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/86618
dc.identifier2-s2.0-84892630761
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1247338
dc.descriptionThis work aimed to study cobalt nanoparticles (Co-NPs) preparation using three different methods in order to evaluate the effect of synthesis variables that can influence the nanoparticle size distribution and particle shape. The synthesised nanoparticles were characterised by Transmission Electron Microscopy. The first synthesis employed decomposition of Co2(CO)8, at high temperatures. This procedure resulted in spherical nanoparticles with low size distribution. The size of Co-NPs could be tuned by modification of precursor/surfactant, nevertheless the stirring and injection time influenced the size distribution. Using polyol process, at high temperatures, it was produced undefined-shape nanoparticles. This result suggests that the solution composition, i.e. the amount of trioctylphosphine and oleic acid was not suitable to control both size and shape of nanoparticles. Finally, the method based on reduction with NaBH4 resulted spherical nanoparticles with tiny sizes, indicating that in this case a variation on amount of reductant would be more efficient on the particle size control than a variation in concentration of oleic acid. These results indicated that, for each method, a different variable exists for the control of the distribution size and the shape of the formed particles. © 2014 Copyright Taylor and Francis Group, LLC.
dc.description9
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dc.description398
dc.description405
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dc.languageen
dc.publisher
dc.relationJournal of Experimental Nanoscience
dc.rightsfechado
dc.sourceScopus
dc.titleCobalt Nanoparticles Prepared By Three Different Methods
dc.typeArtículos de revistas


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