Anhydrous proton conductor based on composites of PEO and ATMP

作者：Sun Baoying; Qiu Xinping^*; Zhu Wentao

来源：Electrochimica Acta, 2011, 56(11): 4248-4253.

DOI：10.1016/j.electacta.2011.01.084

• Poly (ethylene oxide)
• Amino trimethylene phosphonic acid
• Proton conductivity
• Anhydrous proton conductor
• Thermally stable

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.

• 出版日期2011-4-15
• 单位清华大学