Iron nanoparticle growth in organic superstructures

Lise Marie Lacroix; Sébastien Lachaize; Andrea Falqui; Marc Respaud; Bruno Chaudret

doi:10.1021/ja805719c

Iron nanoparticle growth in organic superstructures

Lise Marie Lacroix^*, Sébastien Lachaize, Andrea Falqui, Marc Respaud, Bruno Chaudret

^*Corresponding author for this work

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

115 Scopus citations

Abstract

A tunable synthesis of iron nanoparticles (NPs) based on the decomposition of {Fe[N(SiMe₃)₂]₂]² in the presence of organic superstructures composed of palmitic acid and hexadecylamine is reported. Control of the size (from 1.5 to 27 nm) and shape (spheres, cubes, or stars) of the NPs has been achieved. An environment-dependent growth model is proposed on the basis of results obtained for the NP morphology under various conditions and a complete Mössbauer study of the colloid composition at different reacting stages. It involves (i) an anisotropic growth process inside organic superstructures, leading to monocrystalline cubic NPs, and (N) isotropic growth outside these superstructures, yielding polycrystalline spherical NPs.

Original language	English (US)
Pages (from-to)	549-557
Number of pages	9
Journal	Journal of the American Chemical Society
Volume	131
Issue number	2
DOIs	https://doi.org/10.1021/ja805719c
State	Published - Jan 21 2009
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "Iron nanoparticle growth in organic superstructures",

abstract = "A tunable synthesis of iron nanoparticles (NPs) based on the decomposition of {Fe[N(SiMe3)2]2]2 in the presence of organic superstructures composed of palmitic acid and hexadecylamine is reported. Control of the size (from 1.5 to 27 nm) and shape (spheres, cubes, or stars) of the NPs has been achieved. An environment-dependent growth model is proposed on the basis of results obtained for the NP morphology under various conditions and a complete M{\"o}ssbauer study of the colloid composition at different reacting stages. It involves (i) an anisotropic growth process inside organic superstructures, leading to monocrystalline cubic NPs, and (N) isotropic growth outside these superstructures, yielding polycrystalline spherical NPs.",

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AU - Lacroix, Lise Marie

AU - Lachaize, Sébastien

AU - Falqui, Andrea

AU - Respaud, Marc

AU - Chaudret, Bruno

PY - 2009/1/21

Y1 - 2009/1/21

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AB - A tunable synthesis of iron nanoparticles (NPs) based on the decomposition of {Fe[N(SiMe3)2]2]2 in the presence of organic superstructures composed of palmitic acid and hexadecylamine is reported. Control of the size (from 1.5 to 27 nm) and shape (spheres, cubes, or stars) of the NPs has been achieved. An environment-dependent growth model is proposed on the basis of results obtained for the NP morphology under various conditions and a complete Mössbauer study of the colloid composition at different reacting stages. It involves (i) an anisotropic growth process inside organic superstructures, leading to monocrystalline cubic NPs, and (N) isotropic growth outside these superstructures, yielding polycrystalline spherical NPs.

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Iron nanoparticle growth in organic superstructures

Abstract

ASJC Scopus subject areas

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