title: Room temperature synthesis of rod-like FeC(2)O(4)·2H(2)O and its transition to maghemite, magnetite and hematite nanorods through controlled thermal decomposition.
abstract: FeC(2)O(4)·2H(2)O nanorods with diameter of about 50 nm and length of up to several micrometers were synthesized at room temperature in a surfactant-assisted system, which was obtained by dissolving bis(2-ethylhexyl)sodium sulfosuccinate (AOT) in a mixed solution composed of water and ethylene glycol (EG). The influence of reaction conditions on the morphology of FeC(2)O(4)·2H(2)O is discussed in detail. Through direct thermal decomposition of FeC(2)O(4)·2H(2)O under different calcination conditions, maghemite (γ-Fe(2)O(3)), magnetite (Fe(3)O(4)) and hematite (α-Fe(2)O(3)) can be selectively obtained, preserving the rod-like morphology. Transmission electron microscope (TEM) and high-resolution transmission electron microscope (HRTEM) characterizations showed that the as-obtained iron oxide nanorods were composed of fine particles with different crystal orientations. The magnetic properties of the as-obtained iron oxide nanorods were systematically investigated.
authors: Nanomaterial and Nanochemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China. Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
authors: Weiwei
authors: W
authors: Zhou
authors: Kaibin
authors: K
authors: Tang
authors: Suyuan
authors: S
authors: Zeng
authors: Yunxia
authors: Y
authors: Qi