Gradual phase and morphology transformation of Fe3O4 nanoparticles to α-FeOOH nanorods in alcohol/water media in the presence of surfactant F127
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Iron oxide and oxyhydroxide have a wide range of potential applications in the production of pigments, catalysts, gas sensors, magnetic recording media, and raw materials of hard and soft magnets [1, 2, 3]. α-FeOOH (goethite) particles were traditionally used as pigments, or starting material in the production of α-Fe2O3 (hematite) and γ-Fe2O3 (maghemite). Acicular α-FeOOH particles are used in the production of maghemite and in various academic investigations in colloid and surface chemistry. For example, α-FeOOH nanorods have shown potential in mineral liquid crystals. Inspired by the unique properties of the 1-D structure, much work has been concentrated on the synthesis of its nanorods [4, 5]. Fe3O4 (magnetite), an important member of spinel-type ferrite, has already been applied in catalysis, ceramics, energy storage, magnetic data storage, ferrofluids clinical diagnosis, and medicine transporters [6, 7, 8]. Many methods have been reported for the synthesis of the Fe3O...
KeywordsFe3O4 Pluronic Fe3O4 Nanoparticles Maghemite Amphiphilic Block Copolymer
This research project is supported by Shanghai Nanotechnology Promotion Center (0652nm009, 0352nm113).
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