Superprotonic conduction of intrinsically zwitterionic microporous polymers based on easy-to-make squaraine, croconaine and rhodizaine dyes. Issue 13 (14th June 2022)

• Record Type: Journal Article
• Authors: Taylor, Dominic; Hu, Xuanhe; Wu, Can-Min; Tobin, John M.; Oriou, Zuzana; He, Jun; Xu, Zhengtao; Vilela, Filipe
• Is Part Of: Nanoscale advances. Volume 4:Issue 13(2022)
• Page Start: 2922
• Page End: 2928
• Publication Date: 2022-06-14
• Subjects: 620.5
• DOI: 10.1039/d2na00177b
• Languages: English
• ISSNs: 2516-0230

Abstract

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. 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 m 2 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.