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A Comparative Study of Lithium and Sodium Insertion in Two Block Structure Type Phases, W3Nb14O44 and W4Nb26O77

Published online by Cambridge University Press:  15 February 2011

Antonio F. Fuentes ,
A. Martinez De La Cruz  and
Leticia M. Torres-Martinez
Antonio F. Fuentes
Affiliation:
Facultad de Ciencias Químicas, División de Estudios Superiores, Universidad Autónoma de Nuevo León. ApartadoPostal 1864, Monterrey, Nuevo León, México.
A. Martinez De La Cruz
Affiliation:
Facultad de Ciencias Químicas, División de Estudios Superiores, Universidad Autónoma de Nuevo León. ApartadoPostal 1864, Monterrey, Nuevo León, México.
Leticia M. Torres-Martinez
Affiliation:
Facultad de Ciencias Químicas, División de Estudios Superiores, Universidad Autónoma de Nuevo León. ApartadoPostal 1864, Monterrey, Nuevo León, México.
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Abstract

A comparative study of lithium insertion in W4Nb26O77 and W3Nb14O44, two block structure type phases, has been carried out. This process is, in both cases, reversible for a similar number of lithium ions incorporated to total metal atoms ratio (Li/ΣM), 1.15 in W3Nb14O44 and 1.23 in W4Nb26O77. No significant structural changes are seen by X-ray diffraction upon insertion. Sodium insertion in W3Nb14O44 has been also studied observing a substantial reduction on the number of ions incorporated when compared with lithium (Na/ΣM: 0.03).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 659
Copyright
Copyright © Materials Research Society 1997

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References

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