Alkaline Anion-Exchange Membranes Containing Mobile Ion Shuttles

Xiaolin Ge; Yubin He; Michael D Guiver; Liang Wu; Jin Ran; Zhengjin Yang; Tongwen Xu

doi:10.1002/adma.201506199

Alkaline Anion-Exchange Membranes Containing Mobile Ion Shuttles

Adv Mater. 2016 May;28(18):3467-72. doi: 10.1002/adma.201506199. Epub 2016 Mar 11.

Authors

Xiaolin Ge¹, Yubin He¹, Michael D Guiver², Liang Wu¹, Jin Ran¹, Zhengjin Yang¹, Tongwen Xu¹

Affiliations

¹ CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China.
² State Key Laboratory of Engines, School of Mechanical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, 92 Weijin Road, Tianjin, 300072, P. R. China.

PMID: 26972938
DOI: 10.1002/adma.201506199

Abstract

A new class of alkaline anion-exchange membranes containing mobile ion shuttles is developed. It is achieved by threading ionic linear guests into poly(crown ether) hosts via host-guest molecular interaction. The thermal- and pH-triggered shuttling of ionic linear guests remarkably increases the solvation-shell fluctuations in inactive hydrated hydroxide ion complexes (OH(-) (H2 O)4 ) and accelerates the OH(-) transport.

Keywords: alkaline anion-exchange membranes; fuel cells; hydroxide ion conduction; ion shuttles; membranes.

Publication types

Research Support, Non-U.S. Gov't