Universität zu Köln

Cavelius, Christian ORCID: 0000-0002-6361-286X, Moh, Karsten ORCID: 0000-0003-2450-7597 and Mathur, Sanjay (2012). Chemically Designed Growth of Monodisperse Iron Oxide Nanocrystals. Cryst. Growth Des., 12 (12). S. 5948 - 5956. WASHINGTON: AMER CHEMICAL SOC. ISSN 1528-7483

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Abstract

We describe here a chemically controlled pathway for the designed synthesis of iron oxide nanoparticles by thermal decomposition of iron(II) and iron(III) oxalates in high-boiling solvents in the presence of oleylamine and oleic acid acting as capping ligands. The phase composition of the nanocrystals (Fe, FeO, Fe3O4, or alpha-Fe2O3) could be precisely controlled by adjusting the synthesis conditions or by addition of appropriate oxidants, such as trimethylamine-N-oxide (TMAO), which produced highly monodisperse iron(III) oxide particles in the range of 6-25 nm in good yields. The decomposition behavior of different precursor/TMAO mixtures was elucidated by differential scanning calorimetry and thermogravimetry, and resulting particles were characterized by comprehensive HR-TEM and XRD analyses.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Cavelius, Christian UNSPECIFIED orcid.org/0000-0002-6361-286X UNSPECIFIED Moh, Karsten UNSPECIFIED orcid.org/0000-0003-2450-7597 UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-477111
DOI:	10.1021/cg300936t
Journal or Publication Title:	Cryst. Growth Des.
Volume:	12
Number:	12
Page Range:	S. 5948 - 5956
Date:	2012
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	1528-7483
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language THERMAL-DECOMPOSITION; CONTRAST AGENTS; METAL OXALATES; SURFACE-AREA; NANOPARTICLES; SUPERLATTICES; EFFICIENCY; WUSTITE; SIZE; MRI Multiple languages Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47711