Targeted filling of silica in Nafion by a modified in situ sol- gel method for enhanced fuel cell performance at elevated temperatures and low humidity
Targeted filling of silica in Nafion by a modified in situ sol- gel method for enhanced fuel cell performance at elevated temperatures and low humidity
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通过改进的原位溶胶凝胶方法在 Nafion 中定向填充二氧化硅，以增强燃料电池在高温和低湿度下的性能
DOI：
10.1039/c9cc01221d
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发表时间：
2019
影响因子：
4.9
通讯作者：
Cheng Hansong
中科院分区：
文献类型：
--
作者：
Xu Guoxiao;Li Shuai;Li Jing;Liu Zhao;Li Ying;Xiong Jie;Cai Weiwei;Qu Konggang;Cheng Hansong
本文采用一种改进的原位溶胶-凝胶法，将二氧化硅定向填充到离子团簇中，制备了Nafion/二氧化硅复合膜。因此，Nafion的低湿度(20-60%RH)质子电导率在高温(110-120°C)下翻了一番，高温燃料电池性能显著提高了45%。
Herein, a modified in situ sol–gel method was applied to prepare the Nafion/silica composite membrane with targeted filling of silica into ionic clusters. The low humidity (20–60% RH) proton conductivity of Nafion was therefore doubled at elevated temperatures (110–120 °C), and the high-temperature fuel cell performance was significantly improved by 45%.