Synthesis and stabilization of FeCo nanoparticles

Girija S. Chaubey; Carlos Barcena; Narayan Poudyal; Chuanbing Rong; Jinming Gao; Shouheng Sun; J. Ping Liu

doi:10.1021/ja0708969

Synthesis and stabilization of FeCo nanoparticles

Girija S. Chaubey, Carlos Barcena, Narayan Poudyal, Chuanbing Rong, Jinming Gao, Shouheng Sun, J. Ping Liu

Research output: Contribution to journal › Article › peer-review

271 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	7214-7215
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	129
Issue number	23
DOIs	https://doi.org/10.1021/ja0708969
State	Published - Jun 13 2007

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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AU - Chaubey, Girija S.

AU - Barcena, Carlos

AU - Poudyal, Narayan

AU - Rong, Chuanbing

AU - Gao, Jinming

AU - Sun, Shouheng

AU - Liu, J. Ping

PY - 2007/6/13

Y1 - 2007/6/13

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AB - 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.

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Synthesis and stabilization of FeCo nanoparticles

Abstract

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