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Repositorio Atenea de la Facultad de Ciencias, UNAM >
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http://hdl.handle.net/11154/3311
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| Title: | A new route to gamma-Fe2O3 via an intermediate oxyhydroxide. The reaction of alpha-NaFeO2 with benzoic acid |
| Authors: | Blesa, MC
Moran, E
Tornero, JD
Menendez, N
Mata-Zamora, E
Saniger, JM |
| Issue Date: | 1999 |
| Abstract: | Proton exchange reactions have been performed on alpha-NaFeO2 at 150 degrees C in molten benzoic acid
a ferrimagnetic material showing the spinel structure was produced. Infrared spectroscopy was used to investigate the oxyhydroxide character of this product which, after thermal treatment at 300 degrees C yields the well known maghemite gamma-Fe2O3, although some hydroxyl groups still seem to be present. Besides IR, X-ray diffraction, chemical and thermal analysis, Mossbauer spectroscopy and magnetization measurements are presented and discussed. |
| URI: | http://hdl.handle.net/11154/3311 |
| ISSN: | 0959-9428 |
| Appears in Collections: | Ciencias
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