The preparation and characterization of the phases formed by the reactions of nickel and lanthanum nitrates with magnesium aluminate
Abstract
Samples of Ni(II) on MgAl 2O 4 and of Ni(II) and La(III) on MgAl 2O 4 were prepared and characterized by X-ray diffraction, temperature programmed reduction, and magnetic susceptibility. The results are consistent with the octahedral site preference of Ni(II) in the spinel phase. The role of lanthanum is discussed in terms of the formation of a perovskite-phase LaAlO 3.
- Publication:
-
Journal of Solid State Chemistry France
- Pub Date:
- October 1992
- DOI:
- 10.1016/0022-4596(92)90105-5
- Bibcode:
- 1992JSSCh.100..307B