Synthesis and structural characterization of zirconium silicates

被引：47

作者：

Ferreira, P

Ferreira, A

Rocha, J ^{[1
]}

Soares, MR

机构：

[1] Univ Aveiro, Dept Quim, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Lab Cent Analises, P-3810193 Aveiro, Portugal

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 02期

关键词：

D O I：

10.1021/cm0007196

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A zirconosilicate (Na0.2K1.8ZrSi3O9.H2O) analogue of the small-pore mineral kostylevite (AV-8) has been prepared via hydrothermal synthesis. The thermal transformation of microporous zirconosilicates synthetic petarasite [AV-3, Na5Zr2Si6O18(Cl,OH). 2H(2)O] and synthetic umbite (AM-2, K2ZrSi3O9.H2O) has been studied by powder XRD, TGA, Si-29, and single- and triple-quantum Na-23 MAS NMR. The structure of AV-8 and the structures of synthetic analogues of the dense minerals parakeldyshite (Na2ZrSi2O7) and wadeite (K2ZrSi3O9) obtained via calcination of AV-3 and AM-2, respectively, have been Rietveld refined and fully characterized by Si-29 and Na-23 solid-state NMR.

引用

页码：355 / 363

页数：9

共 26 条

[1] STRUCTURE OF THE MICROPOROUS TITANOSILICATE ETS-10 [J].