Synthesis and conductivity of undecatungstozircogallic heteropoly acid

被引：32

作者：

Sang, XG

Wu, QY ^{[1
]}

Pang, WQ

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

[2] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130023, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 82卷 / 02期

基金：

中国国家自然科学基金;

关键词：

heteropoly acid; gallium; zirconium; tungsten; conductivity; activation energy;

D O I：

10.1016/S0254-0584(03)00260-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The undecatungstozircogallic heteropoly acid (HPA) H-5[Ga(H2O)ZrW11O39].14H(2)O was synthesized for the first time by the stepwise acidification and the stepwise addition of solution of the component elements. The optimal proportion of the component compounds and the pH of the synthesis reaction are given. The product was characterized by means of inductively coupled plasma (ICP), IR, UV, X-ray diffraction and thermal analysis. The results of AC impedance measurement show that its proton conductivity is 8.76 x 10(-4) S cm(-1) at room temperature (16 degreesC) and the activation energy for proton conduction is 21.20 kJ mol(-1). (C) 2003 Published by Elsevier B.V.

引用

页码：405 / 409

页数：5

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