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 mars 2022
Accepted
07 juin 2022
First published
08 juin 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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