Formation of Nickel, Cobalt, Copper, and Iron Aluminates fromα- andγ-Alumina-Supported Oxides: A Comparative Study

The rates of metal aluminate formation inMeOx/Al2O3systems (Me=Ni, Co, Cu, Fe) at 500–1000°C in O2or N2atmospheres were compared, using bothα-Al2O3andγ-Al2O3substrates. Interfacial reaction toMeAl2O4was assessed using Rutherford backscattering spectrometry and X-ray diffraction. The lateral homogene...

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Veröffentlicht in:Journal of solid state chemistry 1998-01, Vol.135 (1), p.59-69
Hauptverfasser: Bolt, P.H., Habraken, F.H.P.M., Geus, J.W.
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Sprache:eng
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Zusammenfassung:The rates of metal aluminate formation inMeOx/Al2O3systems (Me=Ni, Co, Cu, Fe) at 500–1000°C in O2or N2atmospheres were compared, using bothα-Al2O3andγ-Al2O3substrates. Interfacial reaction toMeAl2O4was assessed using Rutherford backscattering spectrometry and X-ray diffraction. The lateral homogeneity of the samples was investigated using scanning electron microscopy. The spinel formation rate follows the sequence FeAl2O4
ISSN:0022-4596
1095-726X
DOI:10.1006/jssc.1997.7590