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Issue 39, 2018
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A stable polyoxometalate-based porous coordination polymer with high proton conductivity

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Abstract

A new coordination polymer based on the Keggin-type [SiW12O40]4−, namely, [Cu4L2(SiW12O40)(OH)4(H2O)8]·8H2O (1), has been prepared by a hydrothermal method (L = 1,4-bis(4H-1,2,4-triazol-4-yl)benzene). The supramolecular framework of 1 is constructed from two dimensional Cu–L layers. Compound 1 was found to be stable in aqueous solutions having pH values ranging from 1 to 13 as well as some other boiling solvents, such as boiling water, methanol and ethanol. Compound 1 exhibits a proton conductivity of 1.4 × 10−4 S cm−1 at 65 °C and 98% RH. More importantly, the proton conductivity of 1 presents a 28-fold enhancement (3.9 × 10−3 S cm−1 at 65 °C and 98% RH) by immersing its gourd-shaped channels into N2H4·H2SO4.

Graphical abstract: A stable polyoxometalate-based porous coordination polymer with high proton conductivity

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Supplementary files

Article information


Submitted
29 Apr 2018
Accepted
14 Aug 2018
First published
16 Aug 2018

CrystEngComm, 2018,20, 6077-6081
Article type
Paper

A stable polyoxometalate-based porous coordination polymer with high proton conductivity

Y. Luo, L. Yi, J. Lu, L. Dong and Y. Lan, CrystEngComm, 2018, 20, 6077
DOI: 10.1039/C8CE00693H

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