Development of proton-conducting membrane based on incorporating a proton conductor 1,2,4-triazolium methanesulfonate into the Nafion membrane
Development of proton-conducting membrane based on incorporating a proton conductor 1,2,4-triazolium methanesulfonate into the Nafion membrane
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基于将质子导体1,2,4-三唑甲磺酸盐纳入Nafion膜开发质子传导膜
DOI：
10.1016/s2095-4956(15)60301-1
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发表时间：
2015-03-01
影响因子：
13.1
通讯作者：
Yi, Baolian
中科院分区：
文献类型：
--
作者：
Hao, Jinkai;Li, Xiaojin;Yi, Baolian
本文合成了离子导体1，2，4-三唑甲烷磺酸盐（C2 H4 N3 + CH 3SO 3-，[Tri][MS]）。它在140摄氏度下表现出18.60mS.cm（-1）的高离子电导率，在190摄氏度下达到36.51 mS.cm（-1）。首次将[Tri][MS]用于改性Nafion膜，在150 ℃下采用浸渍法制备了[Tri][MS]/Nafion膜。所制备的复合膜在空气气氛中的分解温度在200 ℃以上，显示出较高的热稳定性。此外，该膜显示出良好的离子电导率，在140 ℃下为3.67（-1），在180 ℃下达到13.23 mS.cm（-1）。mS.cm用FTIR表征了[Tri][MS]及其复合膜的结构，用循环伏安法研究了[Tri] [MS]与Pt/C催化剂的相容性。此外，[Tri][MS]/Nafion膜（厚度为65 μ m）在高温和不加湿的情况下用单个燃料电池进行评价。[Tri][MS]/Nafion膜的最高功率密度在140 ℃时为3.20 mW.cm（-2），在150 ℃时为4.90 mW.cm（-2），这远高于Nafion膜。mW.cm
In this paper, 1,2,4-triazolium methanesulfonate (C2H4N3+CH3SO3-, [Tri][MS]), an ionic conductor, was successfully synthesized. It exhibited high ionic conductivity of 18.60 mS.cm(-1) at 140 degrees C and reached up to 36.51 mS.cm(-1) at 190 degrees C. [Tri][MS] was first applied to modify Nafion membrane to fabricate [Tri][MS]/Nafion membrane by impregnation method at 150 degrees C. The prepared composite membrane showed high thermal stability with decomposed temperature above 200 degrees C in air atmosphere. In addition, the membrane indicated good ionic conductivity with 3.67 mS.cm(-1) at 140 degrees C and reached up to 13.23 mS.cm(-1) at 180 degrees C. The structure of the [Tri][MS] and the composite membrane were characterized by FTIR and the compatibility of [Tri] [MS] and Pt/C catalyst was studied by a cyclic voltammetry (CV) method. Besides, the [Tri][MS]/Nafion membrane (thickness of 65 mu m) was evaluated with single fuel cell at high temperature and without humidification. The highest power density of [Tri][MS]/Nafion membrane was 3.20 mW.cm(-2) at 140 degrees C and 4.90 mW.cm(-2) at 150 degrees C, which was much higher than that of Nafion membrane.