Journal
ELECTROCHIMICA ACTA
Volume 56, Issue 11, Pages 4248-4253Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.01.084
Keywords
Poly (ethylene oxide); Amino trimethylene phosphonic acid; Proton conductivity; Anhydrous proton conductor; Thermally stable
Categories
Funding
- State Key Basic Research Program of PRC [2009CB220105, 2010CB227200]
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A new type anhydrous PEM material based on Poly (ethylene oxide) (PEO)/Amino Trimethylene Phosphonic Acid (ATMP) composite was prepared. In this study, PEO assumed to grab protons via hydrogen bond between PEO and ATMP. Based on this point, the PEO/ATMP composites were prepared firstly as the preliminary study to verify this proton conducting system. Then, PVDF was added to enhance the membrane's stability. The PVDF/PEO/ATMP composite membranes were thermally stable up to 200 degrees C in the studied composition ranges. The membrane had relatively compact structure by SEM images. Proton conductivity of 59% PVDF/29% PEO/12% ATMP was up to 6.71 x 10(-3) S cm(-1) at 86 degrees C after doping with 7.9 wt% phosphoric acid without extra humidification. (C) 2011 Elsevier Ltd. All rights reserved.
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