Synthesis and electrochemical properties of substituted heteropoly acid with Dawson structure H7[In(H2O)P2W17O61]•23H2O

被引：41

作者：

Qian, Xueyu ^{[1
]}

Tong, Xia ^{[1
]}

Wu, Qingyin ^{[1
]}

He, Zhiqi ^{[1
]}

Cao, Fahe ^{[1
]}

Yan, Wenfu ^{[2
]}

机构：

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

[2] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

来源：

DALTON TRANSACTIONS | 2012年 / 41卷 / 33期

关键词：

PROTON CONDUCTIVITY; FUEL-CELLS; POLYOXOTUNGSTATE; STABILITY;

D O I：

10.1039/c2dt30467h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new solid high-proton conductor, substituted heteropoly acid with Dawson structure H-7[In(H2O)P2W17O61]center dot 23H(2)O, has been synthesized by the degradation/ion exchange/freezing method. The pH of the synthesis reaction was given. The product was characterized by chemical analysis, IR, UV, XRD and TG-DTA. The determination of conductivity shows that H-7[In(H2O)P2W17O61]center dot 23H(2)O is an excellent solid high-proton conductor with conductivity of 1.34 x 10(-3) S cm(-1) at 18 degrees C, and 70% relative humidity (RH). Its activation energy is 37.72 kJ mol(-1), which suggests that its mechanism of proton conduction is the Vehicle mechanism.

引用

页码：9897 / 9900

页数：4

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