Issue 33, 2012
From the journal:

Dalton Transactions

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

Xueyu Qian,a   Xia Tong,a   Qingyin Wu,*a   Zhiqi He,a   Fahe Caoa  and  Wenfu Yanb  

* Corresponding authors

a Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
E-mail: qywu@zju.edu.cn
Fax: +86 571 87951895
Tel: +86 571 88914042

b State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, PR China

Abstract

A new solid high-proton conductor, substituted heteropoly acid with Dawson structure H7[In(H2O)P2W17O61]·23H2O, 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 H7[In(H2O)P2W17O61]·23H2O is an excellent solid high-proton conductor with conductivity of 1.34 × 10−3 S cm−1 at 18 °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.

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

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Article information

DOI
https://doi.org/10.1039/C2DT30467H
Article type
Paper
Submitted
27 Feb 2012
Accepted
18 Apr 2012
First published
20 Apr 2012

Dalton Trans., 2012,41, 9897-9900

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

X. Qian, X. Tong, Q. Wu, Z. He, F. Cao and W. Yan, Dalton Trans., 2012, 41, 9897 DOI: 10.1039/C2DT30467H

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