FORMATION PROCESS OF LISN2(PO4)(3), A MONOCLINICALLY DISTORTED NASICON-TYPE STRUCTURE

Authors
MARTINEZ A ROJO JM IGLESIAS JE SANZ J ROJAS RM
Citation
A. Martinez et al., FORMATION PROCESS OF LISN2(PO4)(3), A MONOCLINICALLY DISTORTED NASICON-TYPE STRUCTURE, Chemistry of materials, 6(10), 1994, pp. 1790-1795
Citations number
30
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
6
Issue
10
Year of publication
1994
Pages
1790 - 1795
Database
ISI
SICI code
0897-4756(1994)6:10<1790:FPOLAM>2.0.ZU;2-5
Abstract
The formation of LiSn2(PO4)(3) from a stoichiometric mixture of Li2CO3 , SnO2, and (NH4)(2)HPO4 heated in the temperature range 180-1200 degr ees C has been followed by XRD, TG and NMR (Sn-119, P-31, and Li-7) te chniques. Amorphous compounds and crystalline SnP2O7 have been identif ied as intermediate products. Two phases of LiSn2(PO4)(3) have been ob tained: one coexists with SnO2 and SnP2O7 while the other has been pre pared as a single phase at 1200 degrees C. The spectroscopic and diffr action data agree with a rhombohedral R3c symmetry for the first phase and a monoclinic Cc symmetry for the second one.