Synthesis and Stabilization of FeCo Nanoparticles

Monodisperse spherical FeCo nanoparticles were synthesized by reduction decomposition of Fe(acac)3 and Co(acac)2 in the presence of surfactants and 1,2-hexadecanediol. The particle size can be controlled by varying the surfactants. The presence of surfactants on the surface of the nanocrystal protec...

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Bibliographic Details
Published inJournal of the American Chemical Society Vol. 129; no. 23; pp. 7214 - 7215
Main Authors Chaubey, Girija S, Barcena, Carlos, Poudyal, Narayan, Rong, Chuanbing, Gao, Jinming, Sun, Shouheng, Liu, J. Ping
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 13.06.2007
Subjects
Cobalt - chemistry
Ferric Compounds - chemical synthesis
Ferric Compounds - chemistry
Metal Nanoparticles - chemistry
Microscopy, Electron, Scanning Transmission
Nanotechnology - methods
Particle Size
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Summary:Monodisperse spherical FeCo nanoparticles were synthesized by reduction decomposition of Fe(acac)3 and Co(acac)2 in the presence of surfactants and 1,2-hexadecanediol. The particle size can be controlled by varying the surfactants. The presence of surfactants on the surface of the nanocrystal protects them from surface oxidation. The saturation magnetization of as-synthesized particles is found to be size dependent. The as-synthesized FeCo nanoparticles can be made air-stable by annealing at 500 °C for 30 min without causing particles sintering.
Bibliography:istex:7FFE24C051E164D8153197ADDCECECF5AF48D462
ark:/67375/TPS-D83CS9W6-3
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0002-7863
1520-5126
DOI:10.1021/ja0708969