A Hierarchically Porous Carbazole‐Containing Polymer from [p‐(4‐N‐carbazole)‐C6H4SiO1.5]8 to Load Imidazole for Efficient Proton Conductivity over a Wide Temperature Range. Issue 40 (25th October 2019)

• Record Type: Journal Article
• Authors: Wu, Ling; Chen, Yao; He, Yang; Zeng, Rong; Yan, Chunpei
• Is Part Of: ChemistrySelect. Volume 4:Issue 40(2019)
• Page Start: 11766
• Page End: 11770
• Publication Date: 2019-10-25
• Subjects: Anhydrous proton conductivity -- Hierarchical pore -- Imidazole -- Light hydrocarbon separation -- Porous polymer; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201902965
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: The practical application of vehicle fuel cell technology requires solid electrolytes possess not only high proton conductivity, but also stable proton transport channel with a wide operating temperature window. In addition, hierarchically porous materials play a key role in mass transport, such as the concentration and mobility of proton carries. Herein, we present a novel strategy to target this goal. A new hierarchically porous carbazole‐containing polymer (ECUT‐PP ) was reported via mechanochemical grinding of [ p ‐(4‐N‐carbazole)C6 H4 SiO1.5 ]8 and anhydrous FeCl3 catalyst at room temperature. Due to the synergistic effects of hierarchical pores, imidazole loaded proton conductor (Im@ECUT‐PP ) presents efficient conductivity from 0 °C (2.39×10 −7 S/cm) to 200 °C (6.03×10 −4 S/cm) under the anhydrous conditions, and its highest temperature is higher than other imidazole‐loaded conductors. Abstract : A new hierarchically porous carbazole‐containing polymer (ECUT‐PP) was reported via mechanochemical grinding of [ p ‐(4‐N‐carbazole)C6 H4 SiO1.5 ]8 and anhydrous FeCl3 catalyst at room temperature. Due to the synergistic effects of hierarchical pores, a charming imidazole included material (Im@ECUT‐PP) showing high anhydrous proton conductivity over a wide temperature range from 0 °C to 200 °C, and its highest temperature is higher than other imidazole‐loaded conductors.