Preparation of iron oxides using ammonium iron citrate precursor: Thin films and nanoparticles

Journal Article · Tue Sep 15 00:00:00 EDT 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.06.027· OSTI ID:21370577

Park, Sangmoon ^[1]

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1. Department of Engineering in Energy and Applied Chemistry, Silla University, Busan 617-736 (Korea, Republic of)

Ammonium iron citrate (C{sub 6}H{sub 8}O{sub 7}.nFe.nH{sub 3}N) was used as a precursor for preparing both iron-oxide thin films and nanoparticles. Thin films of iron oxides were fabricated on silicon (111) substrate using a successive-ionic-layer-adsorption-and-reaction (SILAR) method and subsequent hydrothermal or furnace annealing. Atomic force microscopy (AFM) images of the iron-oxide films obtained under various annealing conditions show the changes of the micro-scale surface structures and the magnetic properties. Homogenous Fe{sub 3}O{sub 4} nanoparticles around 4 nm in diameter were synthesized by hydrothermal reduction method at low temperature and investigated using transmission electron microscopy (TEM). - Graphical abstract: Both iron-oxide thin films and nanoparticles (about 4 nm in diameter) are successfully achieved via successive-ionic-layer-adsorption-and-reaction and hydrothermal techniques in the use of ammonium iron citrate as a precursor.

• OSTI ID: 21370577
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 9; Other Information: DOI: 10.1016/j.jssc.2009.06.027; PII: S0022-4596(09)00288-6; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
AMMONIUM COMPOUNDS
ANNEALING
ATOMIC FORCE MICROSCOPY
CITRATES
IRON COMPOUNDS
IRON OXIDES
MAGNETIC PROPERTIES
NANOSTRUCTURES
SILICON
THIN FILMS
TRANSMISSION ELECTRON MICROSCOPY
CARBOXYLIC ACID SALTS
CHALCOGENIDES
ELECTRON MICROSCOPY
ELEMENTS
FILMS
HEAT TREATMENTS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SEMIMETALS
TRANSITION ELEMENT COMPOUNDS