MECHANISM OF PROTONIC CONDUCTION IN DEFECT PYROCHLORE HNBWO6.XH(2)O USING MAS NMR

Authors
BINESH N BHAT V BHAT SV
Citation
N. Binesh et al., MECHANISM OF PROTONIC CONDUCTION IN DEFECT PYROCHLORE HNBWO6.XH(2)O USING MAS NMR, Solid state ionics, 86-8, 1996, pp. 665-668
Citations number
7
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
86-8
Year of publication
1996
Part
1
Pages
665 - 668
Database
ISI
SICI code
0167-2738(1996)86-8:<665:MOPCID>2.0.ZU;2-O
Abstract
We have carried out H-1 Magic Angle Spinning (MAS) NMR measurements at various spinning speeds (1-12 kHz) on HNbWO(6)xH(2)O (x = 0 and 1) de fect pyrochlore systems. The variation of the line width with the spin ning speed in the two systems points towards the presence of motions w ith different time scales. We conclude that the mechanism of conductio n in both the compounds are similar except that the proton hopping in hydrated form is assisted by the water of hydration.