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

Dominic Taylor, Xuanhe Hu, Can-Min Wu, John M. Tobin, Zuzana Oriou, Jun He*, Zhengtao Xu, Filipe Vilela

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
2 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)2922-2928
Number of pages7
JournalNanoscale Advances
Volume4
Issue number13
Early online date8 Jun 2022
DOIs
Publication statusPublished - 7 Jul 2022

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Engineering(all)

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