Hydrothermal deposition of magnetite (Fe3O4) thin films

Chen, Q.W.; Qian, Yitai; Chen, Z.Y.; Xie, Yi; Zhou, Gen‐Tao; Zhang, Y.H.

doi:10.1016/0167-577x(95)00081-x

Cited by 26 publications

(11 citation statements)

References 8 publications

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“…1 [27]. The result shows that the mole ratio of Fe 3+ /Fe 2+ is 2:0.984, which is basically consistent with the stoichiometric ratio of the Fe 3 O 4 phase.…”

Section: Resultssupporting

confidence: 86%

A soft-template-assisted hydrothermal approach to single-crystal Fe3O4 nanorods

Wan

Chen

Wang

et al. 2005

Journal of Crystal Growth

166

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“…1 [27]. The result shows that the mole ratio of Fe 3+ /Fe 2+ is 2:0.984, which is basically consistent with the stoichiometric ratio of the Fe 3 O 4 phase.…”

Section: Resultssupporting

confidence: 86%

A soft-template-assisted hydrothermal approach to single-crystal Fe3O4 nanorods

Wan

Chen

Wang

et al. 2005

Journal of Crystal Growth

166

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“…Consequently, it is an interesting candidate for magnetic recording media or spin-valve applications [1]. Although the fabrication methods as well as physical properties of Fe 3 O 4 films were extensively studied in 1980s, the need for high storage density still provides considerable impetus to new fabrication technologies for obtaining Fe 3 O 4 thin films which serve as a precursor for g-Fe 2 O 3 recording media [2]. Many methods have been reported to prepare Fe 3 O 4 thin films, such as molecular beam epitaxy [1], sputtering [3], pulsed laser deposition [4], metalorganic chemical vapor deposition [5] and solid reaction [6].…”

Section: Introductionmentioning

confidence: 99%

Nanostructured magnetite (Fe3O4) thin films prepared by sol–gel method

Tang

Zhong

Jiang

et al. 2004

Journal of Magnetism and Magnetic Materials

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“…The data are consistent with the values reported for Fe 3 O 4 in refs [29][30][31] . To further confirm the formation of Fe 3 O 4 , the Fe 3+ /Fe 2+ ratio of the as-prepared sample was calculated after determining the ferrous and total iron content by titrating with K 2 Cr 2 O 7 [32] . The result shows that the mole ratio of Fe 3+ /Fe 2+ is 2:0.976, basically consistent with the Fe 3+ / Fe 2+ ratio of Fe 3 O 4 phase.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization and magnetic properties of near monodisperse Fe3O4 sub-microspheres

Zhang

Kong

et al. 2009

Chin. Sci. Bull.

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Near monodisperse Fe 3 O 4 sub-microspheres with an average diameter of 170 nm have been synthesized by a solvothermal reduction method, using K 3 [Fe(CN) 6 ] as the raw material in the absence of any surfactants at 200℃ for 24 h. The products were detected by XRD, FESEM, TEM, and XPS. The investigation of the reaction parameters indicates that ethylene glycol plays a key role both as reducing agent and solvent. In addition, the reaction time and temperature also have important influences on the final product. The hysteresis loop of the near monodisperse Fe 3 O 4 sub-microspheres shows a ferromagnetic behavior with saturation magnetization of 60.8 emu/g and coercivity of 124.7 Oe. solvothermal, sub-microspheres, morphology, saturation magnetizationIn recent years, increasing attention has been paid to the morphology and size control of materials synthesized on the micro-and nano-scale due to the fact that morphology and size play very important roles in determining chemical and physical properties of materials. As a type of important functional materials, iron oxides such as γ-Fe 2 O 3 and Fe 3 O 4 are becoming more and more attractive because of their intrinsic half-metallic ferromagnetic nature, which can be widely used in catalysts, biological assays, chemical sensors, ferrofluids, colored pigments, high density magnetic recording media, super paramagnets, etc. [1][2][3][4][5][6][7] . Because of the widespread applications, much attention has been paid to the preparation of different kinds of magnetic nanoparticles in the past dozens of years. To date, a number of preparation methods for magnetic nanoparticles have been developed, such as chemical co-precipitation [8] , oil-in-water emulsion [9] , sonochemistry [10] , spray pyrolysis [11] , hydrothermal [12] , solvothermal [13] , arc-discharge [14] , combustion synthesis [15] and thermal decomposition [16] . Although magnetic particles with narrow size distribution have been synthesized by various methods since the fabrication of monodisperse magnetic nanoparticles reported by Matijeviae in the early 1980s [17,18] , the products were overwhelmingly dominated by particles with sizes of dozens of nanometers. With the development of the modern science, it is an interesting challenge to develop approaches to synthesize magnetic particles with suitable sizes to meet the special need of biomedical fields. The research results indicate that various magnetic nano-or micro-particles have been considered as ideal candidates for biological applications such as protein and enzyme immobilization, cell isolation, DNA and RNA purification, immunoassay and guided site-specific drug delivery [19][20][21][22][23] , due to their good hydrophilic and biocompatible properties.Various chemical synthetic routes have been developed to synthesize monodisperse magnetite (Fe 3 O 4 ) particles. The main difficulty in synthesizing monodisperse Fe 3 O 4 particles is the intrinsic agglomerating properties of magnetic nanoparticles. Recently, in order to prevent this agglomeration, the synth...

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Hydrothermal deposition of magnetite (Fe3O4) thin films

Cited by 26 publications

References 8 publications

A soft-template-assisted hydrothermal approach to single-crystal Fe3O4 nanorods

A soft-template-assisted hydrothermal approach to single-crystal Fe3O4 nanorods

Nanostructured magnetite (Fe3O4) thin films prepared by sol–gel method

Synthesis, characterization and magnetic properties of near monodisperse Fe3O4 sub-microspheres

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