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@ARTICLE{Fokina:916951,
author = {Fokina, Vladislava and Wilke, Manuel and Dulle, Martin and
Ehlert, Sascha and Förster, Stephan},
title = {{S}ize {C}ontrol of {I}ron {O}xide {N}anoparticles
{S}ynthesized by {T}hermal {D}ecomposition {M}ethods},
journal = {The journal of physical chemistry / C},
volume = {126},
number = {50},
issn = {1932-7447},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2023-00217},
pages = {21356 - 21367},
year = {2022},
abstract = {The controlled synthesis of superparamagnetic iron oxide
nanoparticles is crucial for a variety of biomedical
applications. Among different synthesis routes thermal
precursor decomposition methods are the most versatile,
yielding monodisperse nanoparticles on the multi-gram scale.
Recent in situ kinetic studies of the nucleation and growth
processes during thermal decomposition routes revealed
non-classical nucleation and growth paths involving
amorphous precursor phases and aggregative growth steps.
With the knowledge of this kinetic mechanism we
systematically examined a range of different iron oxide
heat-up synthesis routes to understand and conclude which
methods allow good and reproducible size control over a
range of relevant nanoparticle diameters. Using transmission
electron microscopy (TEM) and small-angle X-ray scattering
(SAXS) for the characterization of the nanoparticle size
distribution we find that a set of solvents (1-octadecene,
trioctylamine, docosane) provides access to a temperature
range between 300 – 370°C allowing to synthesize
monodisperse nanoparticles in a size range of 5 – 24 nm on
large scale. We confirm that a thermal pretreatment of the
iron oxide precursor is essential to achieve reproducible
size control. We find that each solvent provides access to a
certain temperature range, within which the variation of
temperature, heating rate or precursor concentration allows
to reproducibly control the nanoparticle size.},
cin = {JCNS-1 / IBI-8},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)IBI-8-20200312},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-632},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000895511200001},
doi = {10.1021/acs.jpcc.2c05380},
url = {https://juser.fz-juelich.de/record/916951},
}