Poly(bis-arylimidazoliums) possessing high hydroxide ion exchange capacity and high alkaline stability.

Autor: Fan J; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Willdorf-Cohen S; The Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel., Schibli EM; Department of Physics, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Paula Z; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Li W; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Skalski TJG; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Sergeenko AT; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Hohenadel A; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Frisken BJ; Department of Physics, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada., Magliocca E; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut, 06269, USA., Mustain WE; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut, 06269, USA., Diesendruck CE; Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200008, Israel., Dekel DR; The Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel., Holdcroft S; Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada. holdcrof@sfu.ca.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2019 May 24; Vol. 10 (1), pp. 2306. Date of Electronic Publication: 2019 May 24.
DOI: 10.1038/s41467-019-10292-z
Abstrakt: Solid polymer electrolyte electrochemical energy conversion devices that operate under highly alkaline conditions afford faster reaction kinetics and the deployment of inexpensive electrocatalysts compared with their acidic counterparts. The hydroxide anion exchange polymer is a key component of any solid polymer electrolyte device that operates under alkaline conditions. However, durable hydroxide-conducting polymer electrolytes in highly caustic media have proved elusive, because polymers bearing cations are inherently unstable under highly caustic conditions. Here we report a systematic investigation of novel arylimidazolium and bis-arylimidazolium compounds that lead to the rationale design of robust, sterically protected poly(arylimidazolium) hydroxide anion exchange polymers that possess a combination of high ion-exchange capacity and exceptional stability.
Databáze: MEDLINE