Synthesis of chromium-nickel nanoparticles prepared by a microemulsion method and mechanical milling

Ban, Irena; Stergar, Janja; Drofenik, Mihael; Ferk, Gregor; Makovec, Darko

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Title:	Synthesis of chromium-nickel nanoparticles prepared by a microemulsion method and mechanical milling
Authors:	ID Ban, Irena (Author) ID Stergar, Janja (Author) ID Drofenik, Mihael (Author) ID Ferk, Gregor (Author) ID Makovec, Darko (Author)
Files:	Acta_Chimica_Slovenica_2013_Ban_et_al._Synthesis_of_chromium-Nickel_nanoparticles_prepared_by_a_microemulsion_method_and_mechanical_mill.pdf (243,07 KB) MD5: 0B000CF0380206632968ADF8EC782276 http://acta-arhiv.chem-soc.si/60/60-4-750.pdf
Language:	English
Work type:	Scientific work
Typology:	1.01 - Original Scientific Article
Organization:	FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:	A chemical and a physical method have been applied for the preparation of chromium-nickel alloy nanoparticles. These particles were designed to be used for controlled magnetic hyperthermia applications. Microemulsions with $Ni^{2+}$ and $Cr^{3+}$ and/or $NaBH_4$ as precursors were prepared using the isooctane/CTAB, n-butanol/ $H_2O$ system. The samples of $Cr_xNi_{1-x}$ nanoparticles with the desired composition were obtained after the reduction of their salts with $NaBH_4$ and afterwards heat treated in a TGA in a $N_2$ atmosphere at various temperatures. The $Cr_xNi_{1-x}$ materials were also prepared by mechanical milling. Utilizing a ball-to-powder mass ratio of 20 : 1 and selecting the proper alloy compositions we were able to obtain nanocrystalline $Cr_xNi_{1-x}$ particles. Thermal demagnetization in the vicinity of the Curie temperature of the nanoparticles was studied using a modified TGA-SDTA method. The alloyʼs phase composition, size and morphology were determined with XRD measurements and TEManalyses.
Keywords:	mechanical alloying, magnetic nanoparticles, magnetic hyperthermia, Curie point
Publication status:	Published
Publication version:	Version of Record
Year of publishing:	2013
Number of pages:	str. 750-755
Numbering:	Letn. 60, št. 4
PID:	20.500.12556/DKUM-56231
ISSN:	1318-0207
UDC:	620.3
ISSN on article:	1318-0207
COBISS.SI-ID:	17438998
NUK URN:	URN:SI:UM:DK:ZCKSRM9E
Publication date in DKUM:	21.12.2015
Views:	1767
Downloads:	101
Metadata:
Categories:	Misc.
:	BAN, Irena, STERGAR, Janja, DROFENIK, Mihael, FERK, Gregor and MAKOVEC, Darko, 2013, Synthesis of chromium-nickel nanoparticles prepared by a microemulsion method and mechanical milling. Acta Chimica Slovenica [online]. 2013. Vol. 60, no. 4, p. 750–755. [Accessed 11 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=56231 Copy citation

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Record is a part of a journal

Title:	Acta Chimica Slovenica
Shortened title:	Acta Chim. Slov.
Publisher:	Slovensko kemijsko društvo
ISSN:	1318-0207
COBISS.SI-ID:	14086149

Licences

License:	CC BY 4.0, Creative Commons Attribution 4.0 International

Link:	http://creativecommons.org/licenses/by/4.0/
Description:	This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:	21.12.2015

Secondary language

Language:	Slovenian
Abstract:	Za pripravo nanodelcev zlitine $Cr_xNi_{1-x}$ smo uporabili kemijsko in fizikalno metodo. Delci so namenjeni uporabi v biomedicini, zlasti na področju kontrolirane magnetne hipertermije. Najprej smo pripravili mikroemulzije z $Ni^{2+}$ , $Cr^{3+}$ in/ali $NaBH_4$ prekurzorji v sistemu izooktan/CTAB, n-butanol/ $H_2O$ . Vzorce $Cr_xNi_{1-x}$ nanodelcev z željeno sestavo smo dobili po redukciji njihovih soli z $NaBH_4$ in naknadnem segrevanju v TGA v atmosferi $N_2$ pri različnih temperaturah. Nanodelce $Cr_xNi_{1-x}$ smo sintetizirali tudi s pomočjo mehanskega mletja zmesi kromovih in nikljevih prahov. Mleli smo v visokoenergijskem krogličnem mlinu SPEX 8000M. Z uporabo primernega masnega razmerja med mlevnimi kroglicami in prahom 20:1 in izbiro primerne sestave smo dobili nanodelce zlitine $Cr_xNi_{1-x}$ . Curiejevo temperaturo nanodelcev smo določili z uporabo modificirane TGA-SDTA metode. Sestavo nanozlitine, velikost in morfologijo delcev smo določili s pomočjo meritev XRD in TEM analize.
Keywords:	nanozlitine, krom, nikelj, magnetni nanodelci, magnetna hipertermija

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