Authors
Hai HT, Kura H, Takahashi M, et al.
Institution
Graduate School of Engineering, Department of Electronic Engineering, Tohoku University, 6-6-05 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan. phai@ecei.tohoku.ac.jp
Source
J Colloid Interface Sci 2010 Jan 1; 341(1)
:194-9.Abstract
A phase transformation induced by the reduction of as-synthesized gamma-maghemite (gamma-Fe(2)O(3)) nanoparticles was performed in solution by exploiting the reservoir of reduction gas (CO) generated from the incomplete combustion reaction of organic substances in the reactor. Results from X-ray diffraction, color indicator, and magnetic analysis using a SQUID strongly support this phase transformation. Based on this route, monodisperse magnetite (Fe(3)O(4)) nanoparticles were simply produced in the range from 260 to 300 degrees C. Almost all aspects of the original gamma-Fe(2)O(3) nanoparticles, such as shape, size, and monodispersity, were maintained in the produced Fe(3)O(4) nanoparticles.
Mesh
Ferric CompoundsMicroscopy, Electron, TransmissionNanoparticlesOrganic ChemicalsPhase TransitionSolventsLanguage
eng
Pub Type(s)
Journal Article Research Support, Non-U.S. Gov't
PubMed ID
19850300
