The effect of hydrolysis initiator on the phase formation in sulfated sol-gel zirconia

被引：7

作者：

Bokhimi, X

Morales, A

Novaro, O

López, T

Gómez, R

机构：

[1] Univ Nacl Autonoma Mexico, Inst Phys, Mexico City 01000, DF, Mexico

[2] Univ Autonoma Metropolitana Iztapalapa, Dept Chem, Mexico City 09340, DF, Mexico

来源：

POLYHEDRON | 2000年 / 19卷 / 22-23期

关键词：

sulfated zirconia; tetragonal zirconia stabilization; Rietveld method; zirconium sulfide; zirconium oxide sulfide; thermogravimetry of sol-gel ZrO2;

D O I：

10.1016/S0277-5387(00)00490-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Sol-gel zirconia was sulfated with sulfuric acid. Samples were analyzed with X-ray powder diffraction and thermogravimetry; crystalline phases were refined via Rietveld method. The samples annealed at 600 degreesC crystallized into nanocrystalline tetragonal zirconia when they were prepared with acetic acid, but they crystallized into a mixture of zirconium sulfide, zirconium oxide sulfide, and zirconium sulfate when they were prepared with hydrochloric acid or ammonium hydroxide. The sulfation of the samples prepared with acetic acid also stabilized the tetragonal zirconia. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：2283 / 2287

页数：5

共 29 条

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