Hydrophobic Hydrogel Caged H₃PO₄ as a New Class of High-Temperature Proton Exchange Membranes with Enhanced Acid Retention

Author(s)

Qunwei Tang
Guoging Qian, University of South Carolina - ColumbiaFollow
Kevin Huang, University of South Carolina - ColumbiaFollow

Document Type

Article

Abstract

We herein report a new class of high-temperature proton exchange membranes comprised of poly(acrylic acid-graft-hexadecyltrimethylammonium bromide) (PAA-g-CTAB) or poly(acrylic acid)-graft-poly(ethylene glycol) (PAA-g-PEG) hydrophobic hydrogel caged H₃PO₄. The membranes exhibit reasonable proton conductivity, enhanced H₃PO₄ retention ability and low solubility in water, making them promising as potential high performance and robust electrolytes for high-temperature proton exchange membrane fuel cells. Although the proton conductivity is still lower than that of H₃PO₄ doped PBI membranes, the new concept provides a different approach to proton exchange membranes for acid retention.

Publication Info

Published in RSC Advances, Volume 3, Issue 11, 2013, pages 3520-3525.

Rights

©RSC Advances (2013), Royal Society of Chemistry.

This article cannot be redistributed of further made available.

This article was first published by the Royal Society of Chemistry and can be found at http://dx.doi.org/10.1039/C3RA21417F

Tang, Q., Qian, G., & Huang, K. (2013). Hydrophobic Hydrogel Caged H₃PO₄ as a New Class of High-Temperature Proton Exchange Membranes with Enhanced Acid Retention. RSC Advances, 3 (11), 3520 - 3525.