Properties and segregation stability of the composite silica-zirconia xerogels prepared via "acidic" and "basic" precipitation routes

被引：17

作者：

Krivtsov, I. V. ^{[1
]}

Ilkaeva, M. V. ^{[2
]}

Avdin, V. V. ^{[2
]}

Zherebtsov, D. A. ^{[1
]}

机构：

[1] South Ural State Univ, Educ Res Ctr Nanotechnol, Chelyabinsk, Russia

[2] South Ural State Univ, Dept Chem, Chelyabinsk, Russia

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2013年 / 362卷

关键词：

Silica-zirconia; Zirconia; Xerogels; Phase segregation; Mixed oxides; O-ZR BONDS; SOL-GEL; MIXED-OXIDE; SIO2-ZRO2; EVOLUTION; CRYSTALLIZATION; CATALYSTS; IR;

D O I：

10.1016/j.jnoncrysol.2012.11.011

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two series of the composite silica-zirconia xerogels with various SiO2/ZrO2 molar ratios have been prepared by the "acidic" and "basic" precipitation methods. It has been established that the ways of synthesis have significant effect on surface area, morphological and thermal properties of the xerogels. In addition, the segregation processes in dependence on post-synthetic treatment have been examined in the gels with various molar compositions. Optimal molar composition for each synthetic route in terms of the phase segregation stability of the composite SiO2-ZrO2 xerogels has been proposed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：95 / 100

页数：6

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