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Chemcial Industry and Engineering 2016, Vol. 33 Issue (6) :63-68    DOI: 10.13353/j.issn.1004.9533.20141108
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Nafion/Phosphorylated TiO2 Nanotubes Composite Membranes for Fuel Cells
Liu Yunlong, Wu Bin, Wang Akang, Wang Yuxin
State Key Laboratory of Chemical Engineering, Co-Innovation Center of Chemical Science & Engineering, School of Chemical Engineering, Tianjin Key Laboratory of Membrane Science & Desalination Technology, Tianjin 300072, China

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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.

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Articles by authors
Liu Yunlong
Wu Bin
Wang Akang
Wang Yuxin
KeywordsNafion;   phosphorylated TiO2 nanotubes;   microphase separation;   proton conductivity     
Received 2014-05-06;
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Liu Yunlong, Wu Bin, Wang Akang, Wang Yuxin.Nafion/Phosphorylated TiO2 Nanotubes Composite Membranes for Fuel Cells[J]  Chemcial Industry and Engineering, 2016,V33(6): 63-68
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