Sinteza in karakterizacija magnetnih nanodelcev CuNi s poliolno metodo

diplomsko delo univerzitetnega študijskega programa

Martina Rous (Author), Irena Ban (Mentor), Mihael Drofenik (Co-mentor)

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 delci;magnetna hipertermija;rengentska praškovna difrakcija;Curierjeva temperatura;

Data

Language:	Slovenian
Year of publishing:	2011
Source:	Maribor
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[M. Rous]
UDC:	620.3:537.15(043.2)
COBISS:	15849494
Views:	2358
Downloads:	119
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Synthesis and characterization of CuNi magnetic nanoparticles by the polyol method
Secondary 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.
Secondary keywords:	polyol method;magnetic nanoparticles;magnetic hypertermia;X-ray diffraction;Curie temperature;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	XIV, 50 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;materials testing;commercial materials;power stations;economics of energy;preiskava materiala;blagoznanstvo;energetske centrale;energetika;nanotechnology;nanotehnologija;mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;electricity;magnetism;electromagnetism;elektrika;magnetizem;elektromagnetizem;
ID:	1016352