Nafion/磷酸化TiO<sub>2</sub>纳米管复合质子交换膜

摘要

通过Kabachnik-Fields反应成功制备了磷酸化TiO₂纳米管，采用溶液浇铸法制备了Nafion/磷酸化TiO₂纳米管复合膜。磷酸化TiO₂纳米管可改变复合膜的微观相分离结构，使膜具有更大且连通更好的亲水离子团簇。与纯Nafion膜相比，复合膜的离子交换容量和水吸收率均得到了提高。在100℃时，含1%纳米管的复合膜的导电率由纯Nafion的0.139 S·cm^-1提高到0.154 S·cm^-1，高温下质子交换膜的导电性能得到了改善。

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	刘云龙
	吴斌
	王阿康
	王宇新

关键词： Nafion；磷酸化TiO₂纳米管；微观相分离；导电率

Abstract：

Phosphorylated TiO₂ nanotubes, synthesized through the Kabachnik-Fields reaction, are embedded in Nafon polymer to prepare composite membranes via a solution-cast method. The microphase separation of the composite membranes is tuned by the incorporated nanotubes, resulting in larger and more-connected hydrophilic ionic channels in the membranes. Compared with a pure Nafion membrane, the composite membranes show higher ion exchange capacity and water uptake. At 100℃, the proton conductivity of the composite membrane with 1% phosphorylated TiO₂ nanotubes reaches 0.154 S·cm^-1 from 0.139 S·cm^-1 of a pure Nafion membrane. The performance of the composite membrane at high temperatures is enhanced by the phosphorylated TiO₂ nanotubes.

Keywords： Nafion； phosphorylated TiO₂ nanotubes； microphase separation； proton conductivity

Received 2014-05-06;

Fund:

国家自然科学基金（2012BGH-0001）。

Corresponding Authors: 王宇新,E-mail:yxwang@tju.edu.cn。 Email: yxwang@tju.edu.cn

About author: 刘云龙(1988-),男,硕士研究生,现从事燃料电池质子交换膜的研究。

引用本文:

刘云龙, 吴斌, 王阿康, 王宇新.Nafion/磷酸化TiO₂纳米管复合质子交换膜[J]. 化学工业与工程, 2016,33(6): 63-68

Liu Yunlong, Wu Bin, Wang Akang, Wang Yuxin.Nafion/Phosphorylated TiO₂ Nanotubes Composite Membranes for Fuel Cells[J]. Chemcial Industry and Engineering, 2016,33(6): 63-68

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