title: New anhydrous proton exchange membrane for intermediate temperature proton exchange membrane fuel cells.
abstract: Herein, we study the preparation and characterization of a new kind of proton exchange membrane. In the proton-conducting membrane of poly(vinylidene fluoride) (PVDF)/poly(ethylene oxide) (PEO)/dodecyl benzenesulfonic acid (DBS-H), we use PEO as "proton solvent" due to its flexible molecular chain. Moreover, the electronegativity of the O atom on PEO may be used to attract protons under anhydrous conditions. The membranes are thermally stable up to 200 °C with less than 3 % mass loss. At 150 °C, without extra humidification, the proton conductivity of 60 % PVDF/22 % PEO/18 % DBS-H membrane is approximately 10 (-3) S cm(-1).
authors.affiliation: Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, China.
authors.forename: Baoying
authors.initials: B
authors.lastname: Sun
authors.forename: Huanqiao
authors.initials: H
authors.lastname: Song
authors.forename: Xinping
authors.initials: X
authors.lastname: Qiu
authors.forename: Wentao
authors.initials: W
authors.lastname: Zhu