TY - JOUR
T1 - Development of polymer-polymer type charge-transfer blend membranes for fuel cell application
AU - Feng, Shiyan
AU - Kondo, Shoichi
AU - Kaseyama, Takahiro
AU - Nakazawa, Taichi
AU - Kikuchi, Takamasa
AU - Selyanchyn, Roman
AU - Fujikawa, Shigenori
AU - Christiani, Liana
AU - Sasaki, Kazunari
AU - Nishihara, Masamichi
N1 - Funding Information:
The authors gratefully acknowledge financial support by Grant-in-Aid for Scientific Research (C) ( 26410223 ), JSPS Japan , “ Center of Innovation Science and Technology based Radical Innovation and Entrepreneurship Program (COI Program)”, JST Japan , and collaboration research with Nissan Chemical Industries, Ltd . Thanks to Charles Gell for checking this manuscript. Appendix A
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018/2/15
Y1 - 2018/2/15
N2 - We have prepared new charge-transfer (CT) complex polymer blend membranes (CT membranes), for use as high performance polymer electrolyte membranes (PEMs); with a simple and easy preparation method for application in PEFCs. In this study, electron-accepting sulfonated polyimide (SPI) and electron-donating polyether (PE), were used to develop polymer-polymer type CT membranes. The formation of CT complex in the obtained SPI/PE membranes was confirmed by visible spectroscopy. The use of flexible spacers in the PE and heat treatment of the CT membranes, enhanced the CT complex formation. SPI/PE CT membranes showed 1.9–2.2 times higher mechanical strength than the original SPI, while SPI/PE 0.33 CT membrane with heat treatment at 130 °C for 2 h showed 4.3 times higher mechanical strength than the original SPI. Hydrogen permeability through SPI/PE CT membranes was 4.1–5.4 times lower than Nafion 212 and 1.4–1.9 times lower than the original SPI membrane. We have prepared a thin SPI/PE CT membrane (10 µm thickness), that showed comparable OCV (0.88 V), similar resistance compared to Nafion 212 and demonstrated more than 10 h of durability in a fuel cell test; suggesting that SPI/PE thin CT membrane can be applied for PEFC application.
AB - We have prepared new charge-transfer (CT) complex polymer blend membranes (CT membranes), for use as high performance polymer electrolyte membranes (PEMs); with a simple and easy preparation method for application in PEFCs. In this study, electron-accepting sulfonated polyimide (SPI) and electron-donating polyether (PE), were used to develop polymer-polymer type CT membranes. The formation of CT complex in the obtained SPI/PE membranes was confirmed by visible spectroscopy. The use of flexible spacers in the PE and heat treatment of the CT membranes, enhanced the CT complex formation. SPI/PE CT membranes showed 1.9–2.2 times higher mechanical strength than the original SPI, while SPI/PE 0.33 CT membrane with heat treatment at 130 °C for 2 h showed 4.3 times higher mechanical strength than the original SPI. Hydrogen permeability through SPI/PE CT membranes was 4.1–5.4 times lower than Nafion 212 and 1.4–1.9 times lower than the original SPI membrane. We have prepared a thin SPI/PE CT membrane (10 µm thickness), that showed comparable OCV (0.88 V), similar resistance compared to Nafion 212 and demonstrated more than 10 h of durability in a fuel cell test; suggesting that SPI/PE thin CT membrane can be applied for PEFC application.
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U2 - 10.1016/j.memsci.2017.11.025
DO - 10.1016/j.memsci.2017.11.025
M3 - Article
AN - SCOPUS:85034599340
SN - 0376-7388
VL - 548
SP - 223
EP - 231
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -