GAUDON, Manuel; PAILHÉ, Nathalie; MAJIMEL, Jérôme; WATTIAUX, Alain; ABEL, Jonathan; DEMOURGUES, Alain

doi:10.1016/j.jssc.2010.04.043

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GAUDON, Manuel
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

PAILHÉ, Nathalie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

MAJIMEL, Jérôme
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Journal of Solid State Chemistry. 2010, vol. 183, n° 9, p. 2101-2109

Elsevier

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Pure, Sn-doped and Mg/Sn co-doped α-Fe2O3 hematite samples were synthesized by precipitation process. Fe2O3 is the most popular red mineral pigment which is used largely in traditional ceramics, tar and concrete. The compounds were characterized by powder X-ray diffraction (XRD), scanning transmission electronic microscopy (energy dispersive X-ray cartography), Mössbauer spectroscopy, magnetic investigations versus temperature and visible-NIR spectroscopy. Both 57Fe and 119Sn Mössbauer analyses combined with rietveld XRD refinements are the ideal techniques to characterize tin-iron oxides. Hence, thanks to these techniques it was shown how the synthesis temperature influences directly the grain size and the dopants concentration limit which can be incorporated into the host hematite matrix...< Leer menos

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Hematite

Pigment

X-ray diffraction

Mössbauer spectroscopy

Visible-NIR spectroscopy

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Influence of Sn<sup>4+</sup> and Sn<sup>4+</sup>/Mg<sup>2+</sup> doping on structural features and visible absorption properties of <i>α</i>-Fe<sub>2</sub>O<sub>3</sub> hematite

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