Issue 39, 2018

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

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

Supplementary files

Article information

Article type
Paper
Submitted
29 Apr. 2018
Accepted
14 Aug. 2018
First published
16 Aug. 2018

CrystEngComm, 2018,20, 6077-6081

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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