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Configuring anion-exchange membranes for high conductivity and alkaline stability by using cationic polymers with side chains

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Author

Summary, in English

Polymeric anion-exchange membranes (AEMs) are critical components for alkaline membrane fuel cells (AMFCs) which offer several attractive advantages including the use of platinum-free catalysts and a wide choice of fuel. The development of AMFCs and other electrochemical energy systems is currently severely limited by the lack of AEMs with sufficient alkaline stability. Still, significant advances have been made in recent years and one of the most promising approaches to emerge is the design and synthesis of cationic polymers with various side chain arrangements. Especially, synthetic strategies where the cationic ion exchange groups are placed on pendant alkyl spacer chains along the backbone seem to significantly improve microphase separation, hydroxide ion conductivity, and alkaline stability in relation to standard AEMs with cations placed in benzylic positions directly on the backbone. This article reviews recent approaches to high-performance cationic membrane polymers involving different side chain designs, and discusses some possible future directions.

Publishing year

2016

Language

English

Pages

1108-1118

Publication/Series

Macromolecular Chemistry and Physics

Volume

217

Issue

10

Document type

Journal article review

Publisher

John Wiley & Sons Inc.

Topic

  • Polymer Technologies
  • Chemical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1521-3935