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Synthesis of pure amorphous Fe2O3
Abstract
A method for the preparation of pure amorphous Fe 2 O 3 powder with particle size of 25 nm is reported in this article. Pure amorphous Fe 2 O 3 can be simply synthesized by the sonication of neat Fe(CO)5 or its solution in decalin under an air atmosphere. The Fe 2 O 3 nanoparticles are converted to crystalline Fe 3 O 4 nanoparticles when heated to 420 °C under vacuum or when heated to the same temperature under a nitrogen atmosphere. The crystalline Fe 3 O 4 nanoparticles were characterized by x-ray diffraction and M¨ossbauer spectroscopy. The Fe 2 O 3 amorphous nanoparticles were examined by Transmission Electron Micrography (TEM), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Quantum Design SQUID magnetization measurements. The magnetization of pure amorphous Fe 2 O 3 at room temperature is very low (<1.5 emu/g) and it crystallizes at 268 °C.
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Cites
(1999) · Choice Reviews Online · doi:10.5860/choice.37-0940 · Cited by 14,314
Cited by
Santra, S., Tapec, R., Theodoropoulou, N., Dobson, J., Hebard, A., & Tan, W. (2001) · Langmuir · doi:10.1021/la0008636 · Cited by 818
Sonochemical Preparation of Nanosized Amorphous NiFe2O4 Particles
Shafi, K. V. P. M., Koltypin, Y., Gedanken, A., Prozorov, R., Balogh, J., Lendvai, J., & Felner, I. (1997) · The Journal of Physical Chemistry B · doi:10.1021/jp970893q · Cited by 301
Self-citationAmorphous Iron(III) OxideA Review
Machala, L., Zboril, R., & Gedanken, A. (2007) · The Journal of Physical Chemistry B · doi:10.1021/jp064992s · Cited by 299
Self-citationSodipo, B. K., & Aziz, A. A. (2016) · Journal of Magnetism and Magnetic Materials · doi:10.1016/j.jmmm.2016.05.019 · Cited by 169
Novel magnetic nanomaterials inspired by magnetotactic bacteria: Topical review
Prozorov, T., Bazylinski, D. A., Mallapragada, S. K., & Prozorov, R. (2013) · Materials Science and Engineering: R: Reports · doi:10.1016/j.mser.2013.04.002 · Cited by 137
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Metadata
- Authors
- Cao, X., Prozorov, R., Koltypin, Y., Kataby, G., Felner, I., & Gedanken, A.
- Venue
- Journal of Materials Research
- Published
- 1997-02
- Volume
- 12
- Issue
- 2
- Pages
- 402-406
- ISSN
- 0884-1616 (ISSN-L)
- 0884-2914
- 2044-5326
- OpenAlex
- W2070249256
- Cited by
- 159
- References
- 1
- FWCI
- 11.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cao, X., Prozorov, R., Koltypin, Y., Kataby, G., Felner, I., & Gedanken, A. (1997). Synthesis of pure amorphous Fe2O3. Journal of Materials Research. https://doi.org/10.1557/jmr.1997.0058
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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