Issue 13, 2022

Superprotonic conduction of intrinsically zwitterionic microporous polymers based on easy-to-make squaraine, croconaine and rhodizaine dyes

Abstract

Porous organic polymers (POPs) have been prepared via a novel metal free polycondensation between a tritopic indole-based monomer and squaric, croconic and rhodizonic acids. Each of the three POPs exhibited high BET surface areas (331–667 m2 g−1) and zwitterionic structures. Impedance measurements revealed that the intrinsic POPs were relatively weak proton conductors, with a positive correlation between the density of oxo-groups and the proton conduction. Doping the materials with LiCl vastly improved the proton conductivity up to a value of 0.54 S cm−1 at 90 °C and 90% relative humidity.

Graphical abstract: Superprotonic conduction of intrinsically zwitterionic microporous polymers based on easy-to-make squaraine, croconaine and rhodizaine dyes

Supplementary files

Article information

Article type
Paper
Submitted
23 3 2022
Accepted
07 6 2022
First published
08 6 2022
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2022,4, 2922-2928

Superprotonic conduction of intrinsically zwitterionic microporous polymers based on easy-to-make squaraine, croconaine and rhodizaine dyes

D. Taylor, X. Hu, C. Wu, J. M. Tobin, Z. Oriou, J. He, Z. Xu and F. Vilela, Nanoscale Adv., 2022, 4, 2922 DOI: 10.1039/D2NA00177B

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