How to choose a precursor for decomposition solution-phase synthesis: the case of iron nanoparticles

Nanoscale
David A J HermanRichard D Tilley

Abstract

The decomposition of organometallic compounds as precursors has revolutionized the synthesis of nanoparticles in solution. However, effective control of size and size distribution of iron nanoparticles has remained challenging due to the high reactivity of iron towards oxygen or oxygen-containing materials. Reported is a decomposition study that shows how metal to ligand bonding and symmetry of the compound can be manipulated to control the size and size distribution of iron nanoparticles in the 6-16 nm range. [Fe(η(5)-C6H3Me4)2] was found to be the optimal precursor with a narrow decomposition temperature range due to its symmetry and the low bond dissociation energy of the ligands from the Fe(ii) center. The precise control of nanoparticle size has enabled the tuning of magnetic properties from superparamagnetic to soft-ferromagnetic desirable for a wide range of biomedical applications.

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Citations

Oct 11, 2017·Advanced Healthcare Materials·Jalal MosayebiSophie Laurent
Feb 27, 2020·Chemical Communications : Chem Comm·Lucy GloagRichard D Tilley
Nov 20, 2016·Advanced Materials·Jian Zhu, Mark C Hersam
Sep 21, 2019·Advanced Materials·Lucy GloagJ Justin Gooding
Aug 3, 2021·Inorganic Chemistry·Francis PertonSylvie Begin-Colin
Nov 23, 2021·Chemical Communications : Chem Comm·Milad MehdipourJ Justin Gooding

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