Irena Ban (Author), Mihael Drofenik (Author), Darko Makovec (Author)

Abstract

Nanosized Fe0.2Ni0.8 particles were prepared by reducing their salts with sodium borohydride (NaBH4) in cationic water-in-oil (w/o) microemulsions of water/cetyl-trimethyl-amonium bromide (CTAB) and n-butanol/isooctane at 25 °C.According to the TEM and X-ray diffraction analyses, the synthesized particles were around 4-12 nm in size. Due to their nanodimensions, the particles had a primitive cubic (pc) structure rather than the body-centered cubic (BCC) structure of the bulk material. An examination of the synthesis from the reverse micelle reveals that the morphology of the iron-nickel alloy nanoparticles depends mainly on the microemulsion`s composition. The magnetization of the nanoparticles was much lower than that of the bulk material, reflecting the influence of the nanodimensions on the particlesć magnetizations.

Keywords

magnetni materiali;zlitine nikelj/železo;sinteze;nanodelci;mikroemulzije;magnetne lastnosti;reverzne micele;magnetic materials;nickel/iron alloys;nanoparticles;synthesis;microemulsions;magnetic properties;reverse micelles;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FKKT - Faculty of Chemistry and Chemical Engineering
UDC: 546.057
COBISS: 10488342 Link will open in a new window
ISSN: 0304-8853
Views: 1624
Downloads: 91
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Other data

Secondary language: English
Secondary keywords: magnetni materiali;zlitine nikelj/železo;sinteze;nanodelci;mikroemulzije;magnetne lastnosti;reverzne micele;
URN: URN:SI:UM:
Pages: str. 250-256
Volume: ǂVol. ǂ307
Issue: ǂiss. ǂ2
Chronology: Dec. 2006
ID: 8717096