HNbWO6 and HTaWO6: Novel oxides related to ReO3 formed by ion exchange of rutile-type LiNbWO6 and LiTaWO6


Autoria(s): Bhat, Vasudeva; Gopalakrishnan, J
Data(s)

01/07/1986

Resumo

Both LiNbWO6 and LiTaWO6 undergo ion exchange in hot aqueous H2SO4 yielding the hydrates HMWO6 · H2O (M = Nb or Ta). The reaction is accompanied by a structural transformation from the rutile to the ReO3 structure. The cell constants are a = 3.783(3)Å for HNbWO6 · H2O and a = 3.785(5)Å for HTaWO6 · H2O. The ReO3 structure is retained by the dehydration products HMWO6 and MWO5.5 as well. HMWO6 phases yield H1+xMWO6 hydrogen bronzes on exposure to hydrogen in the presence of platinum catalyst.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/21243/1/http___www.sciencedirect.com_science__ob%3DMImg%26_imagekey%3DB6WM2-4B6NW23-BT-7%26_cdi%3D6922%26_user%3D512776%26_orig%3Dsearch%26_coverDate%3D07_01_1986%26_sk%3D999369997%26view%3Dc%26wchp%3DdGLbVtb-zSkzS%26md5%3Db8f632b81f00.pdf

Bhat, Vasudeva and Gopalakrishnan, J (1986) HNbWO6 and HTaWO6: Novel oxides related to ReO3 formed by ion exchange of rutile-type LiNbWO6 and LiTaWO6. In: Journal of Solid State Chemistry, 63 (2). pp. 278-283.

Publicador

Elsevier Science

Relação

http://eprints.iisc.ernet.in/21243/

Palavras-Chave #Solid State & Structural Chemistry Unit
Tipo

Journal Article

PeerReviewed