Effect of ion-exchange nanofiber fabrics on water splitting in bipolar membrane

Journal of Colloid and Interface Science
Yuji WakamatsuAkihiko Tanioka

Abstract

In the present study, the effect of ion-exchange fiber fabric made by electrospray deposition (ESD) on water splitting in a composite bipolar membrane (CBM) was investigated. Cation- and anion-exchange fiber (CEF and AEF) fabrics, which were composed of very thin fibers, were prepared by ESD and postdeposition chemical modification and then used as the intermediate layer of a CBM. The current-voltage characteristics under reverse bias conditions showed that the AEF fabrics enhanced water splitting. The water dissociation is accelerated by the AEF fabric, which contains both tertiary pyridyl groups and quaternary pyridinium groups and has a high specific surface area. On the other hand, the CEF fabric, which contains sulfonic acid groups and has an insufficient specific surface area, reduced water splitting. These results indicate that fiber fabric with catalytic activity and a high surface area obtained by ESD can improve the performance of a CBM.

References

Apr 26, 2005·Journal of Colloid and Interface Science·Hidetoshi MatsumotoYutaka Yamagata
Jul 16, 2005·Journal of Colloid and Interface Science·Hidetoshi MatsumotoAkihiko Tanioka

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Citations

Apr 25, 2012·Journal of the American Society for Mass Spectrometry·Zhigui ZhouHuwei Liu
Oct 26, 2013·ACS Applied Materials & Interfaces·Said AbduMatthias Wessling
Mar 16, 2007·Journal of Colloid and Interface Science·Hidetoshi MatsumotoAkihiko Tanioka

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