journal article·2019-07-22

Facile Preparation of an Ether-Free Anion Exchange Membrane with Pendant Cyclic Quaternary Ammonium Groups

Rong Ren, Shuomeng Zhang, Hamish Andrew Miller, Francesco Vizza, John Robert Varcoe, Qinggang He

ACS Applied Energy Materials· Volume 2· Issue 7
Publisher page

Abstract

Ether-bond-free polyfluorene (PBF) anion exchange membranes (AEMs) containing flexible alkyl pendent chains terminated with piperidinium cations were prepared via one-pot, superacid-catalyzed polycondensation and a subsequent quaternization reaction. Hydrophilic and hydrophobic microphase segregation was observed in all AEMs. The hydroxide conductivity of PBF2-Br reaches up to 86 mS cm–1 at 80 °C, and 1H NMR showed no measurable degradation after alkaline treatment in aqueous NaOH (1 M) solution for 1200 h at 80 °C. Besides, a peak power density of 410 mW cm–2 was achieved at 60 °C for an alkaline fuel cell using the selected PBF1-OH (OH– form) as AEM.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Fuel Cells and Related Materials · Membrane-based Ion Separation Techniques · Electrocatalysts for Energy Conversion

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China

Institute of Chemistry of Organometallic Compounds, ICCOM-CNR, Polo Scientifico Area CNR, 50019 Sesto Fiorentino, Italy

Department of Chemistry, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom

Ningbo Research Institute, Zhejiang University, Ningbo, Zhejiang 315100, China

Funding

Royal Society · Zhejiang University · Ministero dell?Istruzione, dell?Universit? e della Ricerca · Ente Cassa di Risparmio di Firenze · National Natural Science Foundation of China · Thousand Talents Plan

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