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Rapid synthesis of dendrite‐ and platelet‐like α‐Fe 2 O 3 via a hydrothermal oxidation route
Author(s) -
Liang Jun,
Li Li,
Song Weiming,
Fang Junzhuo,
Luo Min,
Li Yanping
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200900707
Subject(s) - microstructure , hydrothermal circulation , transmission electron microscopy , scanning electron microscope , dendrite (mathematics) , morphology (biology) , materials science , hydrothermal synthesis , diffraction , chemical engineering , crystallography , chemistry , nanotechnology , composite material , optics , geometry , mathematics , physics , engineering , biology , genetics
Dendrite and platelet‐like α‐Fe 2 O 3 microcrystals were synthesized by the oxidation reaction of K 4 Fe(CN) 6 and NaClO 3 through a simple hydrothermal method. The structures and morphologies of the as‐prepared samples were characterized in detail by X‐ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The experiment results show that NaOH played an important role in controlling the morphology of the final products. The possible mechanism was discussed to elucidate the formation of different morphologies of the α‐Fe 2 O 3 microstructures. Besides, the magnetic property of the dendrite α‐Fe 2 O 3 microstructure was characterized by a vibrating sample magnetometer (VSM). (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)