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X-ray powder diffraction analysis of K3Nb3WO9(AsO4)2

Published online by Cambridge University Press:  01 March 2012

S. Belkhiri ,
D. Mezaoui ,
H. Rebbah ,
S. Ouhenia  and
M. A. Belkhir
S. Belkhiri
Affiliation:
Laboratoire Sciences des Matériaux Faculté de Chimie, Université des Sciences et de la Technologie Houari Boumedienne (USTHB), Bp 32 El Alia 16111 Bab Ezzouar-Alger, Algérie
D. Mezaoui
Affiliation:
Laboratoire Sciences des Matériaux Faculté de Chimie, Université des Sciences et de la Technologie Houari Boumedienne (USTHB), Bp 32 El Alia 16111 Bab Ezzouar-Alger, Algérie
H. Rebbah
Affiliation:
Laboratoire Sciences des Matériaux Faculté de Chimie, Université des Sciences et de la Technologie Houari Boumedienne (USTHB), Bp 32 El Alia 16111 Bab Ezzouar-Alger, Algérie
S. Ouhenia*
Affiliation:
Laboratoire de Physique, Faculté des Sciences et Sciences de l’ingénieur, Université de Bejaia, Béjaia 06000, Algérie
M. A. Belkhir
Affiliation:
Laboratoire de Physique, Faculté des Sciences et Sciences de l’ingénieur, Université de Bejaia, Béjaia 06000, Algérie
*
a)Electronic mail: [email protected]
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Abstract

K3Nb3WO9(AsO4)2 has been investigated by means of X-ray powder diffraction. Powder diffraction data were obtained by conventional diffractometer with Kα radiation. Unit-cell dimensions were determined by an indexing program based on variation of parameters by successive dichotomies. An orthorhombic cell (space group Pnma) was found with a=15.001 (1) Å, b=14.814(1) Å, c=7.2374 (8) Å, and V=1608.4 (4) A3. The figures of merit were calculated to be M(20)=35.9 and F(20)=70.8 (0.0055,51).

Keywords

indexationpowder diffractioncatalysision conductionarsenates
Type
New Diffraction Data
Information
Powder Diffraction , Volume 21 , Issue 3 , September 2006 , pp. 236 - 237
Copyright
Copyright © Cambridge University Press 2006

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