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Synthesis and X-ray characterization of Li0.5M0.25TiOAsO4 (M=Mg,Co,Ni,Zn) oxyarsenates

Published online by Cambridge University Press:  01 March 2012

M. Chakir ,
A. El Jazouli  and
J. P. Chaminade
M. Chakir
Affiliation:
Laboratoire de Chimie des Matériaux Solides, Université Hassan II, Faculté des Sciences Ben M 'Sik, Casablanca, Morocco
A. El Jazouli
Affiliation:
Laboratoire de Chimie des Matériaux Solides, Université Hassan II, Faculté des Sciences Ben M 'Sik, Casablanca, Morocco
J. P. Chaminade
Affiliation:
Institut de Chimie de la Matière Condensée de Bordeaux, CNRS, 87, Av. Dr. Schweitzer, 33608 Pessac, France
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Abstract

Li0.5M0.25TiOAsO4 (M=Mg,Co,Ni,Zn) oxyarsenates powders were prepared by coprecipitation method from dilute solution of Li2CO3,M(NO3)2×H2O (M=Mg,Co,Ni,Zn), (NH4)H2AsO4 and TiCl4 in ethanol. The resulting powders, obtained after drying at about 60 °C, were heated progressively with intermittent grindings at 200 °C–750 °C in air. These new compounds crystallize in the monoclinic system with space group P21∕c. Their parameters are functions of M2+ ion size.

Keywords

crystallochemistryX-ray diffractionoxyarsenatesLi0.5M0.25TiOAsO4
Type
Technical Articles
Information
Powder Diffraction , Volume 21 , Issue 3 , September 2006 , pp. 229 - 235
Copyright
Copyright © Cambridge University Press 2006

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