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Title:SINTEZA IN KARAKTERIZACIJA MAGNETNIH NANODELCEV CuNi S POLIOLNO METODO
Authors:Rous, Martina (Author)
Ban, Irena (Mentor) More about this mentor... New window
Drofenik, Mihael (Co-mentor)
Files:.pdf UNI_Rous_Martina_2011.pdf (4,44 MB)
 
Language:Slovenian
Work type:Undergraduate thesis (m5)
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Namen diplomskega dela, je bil sintetizirati magnetne nanodelce Cu0,3Ni0,7 s poliolno metodo in pri tem ugotoviti vpliv različnih parametrov na potek reakcije ter velikost in obliko delcev. Kot poliol smo uporabili etilenglikol (EG) in dietilenglikol (DEG). Naredili smo različne sinteze, pri katerih smo spreminjali čas refluksa, množino soli, količino NaOH in količino PVP. S pomočjo difraktogramov, katere smo dobili kot rezultat rentgenske praškovne difrakcije, (RPD) smo ocenili velikost nanodelcev CuNi in določili faze v vzorcih. S termogravimetrično analizo (TGA) smo določili Curiejevo temperaturo vzorca. Na koncu smo preučili še morfologijo nanodelcev s pomočjo transmisijskega elektronskega mikroskopa (TEM). Iz rezultatov je mogoče razbrati vplive posameznih parametrov na velikost in obliko delcev. Izmerili smo optimalno Curiejevo temperaturo 43ºC, pri sintetiziranem vzorcu s poliolno metodo, z uporabo poliola EG. Vzorec je bil predhodno segret v cevni peči na 700 ºC, v Ar/H2 atmosferi.
Keywords:poliolna metoda, magnetni nanodelci, magnetna hipertermija, rentgenska praškovna difrakcija, Curiejeva temperatura
Year of publishing:2011
Publisher:[M. Rous]
Source:Maribor
UDC:620.3:537.15(043.2)
COBISS_ID:15849494 Link is opened in a new window
NUK URN:URN:SI:UM:DK:HI1QW8S6
Views:1982
Downloads:99
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:SYNTHESIS AND CHARACTERIZATION OF CuNi MAGNETIC NANOPARTICLES BY THE POLYOL METHOD
Abstract:The aim of this work was to synthesize magnetic nanoparticles with composition Cu0,3Ni0,7 by the polyol method and to determine the effect of various parameters on the course of the reaction and the size and shape of the particles. We used ethylene glycol (EG) and diethylene glycol (DEG) as polyol. We preformed various syntheses in which the time of reflux, the both amounts of salts, the amounts of NaOH and the amounts of PVP was varied. The size of magnetic nanoparticles was estimated by Scherrer equation. Samples were characterized with XRD analysis. Curie temperature of the sample was studied using a modified TGA – SDTA method. The morphology of nanoparticles was studied with transmission electron microscopy (TEM). The results showed the effects of individual parameters on the size and shape of the particles. We measured the Curie temperature of 43ºC at sample with composition: Cu0,3Ni0,7, which was synthesized by standard polyol procedure (with ethylene glycol). The sample was tempered at 700 ºC in tube furnace in Ar/H2 atmosphere.
Keywords:polyol method, magnetic nanoparticles, magnetic hyperthermia, X-ray diffraction, Curie temperature


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