Composite Nafion/Zirconium Phosphate Membranes for Direct Methanol Fuel Cell Operation at High Temperature
Composite Nafion/Zirconium Phosphate Membranes for Direct Methanol Fuel Cell Operation at High Temperature
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DOI：
10.1149/1.1353157
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发表时间：
2001-04
影响因子：
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通讯作者：
Christopher Yang;S. Srinivasan;A. Aricò;P. Creti;V. Baglio;V. Antonucci
中科院分区：
文献类型：
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作者：
Christopher Yang;S. Srinivasan;A. Aricò;P. Creti;V. Baglio;V. Antonucci
研究了具有复合Nafion-磷酸锆电解质膜的直接甲醇燃料电池，在温和的燃料预热条件（85 ℃）下，在干燥氧化剂的情况下，在高达150 ℃的操作温度下表现出良好的性能。在140-150 ℃下，电池工作时的典型电池电阻为0.08 Ω cm 2.在氧气和空气进料下分别实现了380和260 mW cm 2的最大功率密度。扫描电镜能谱分析表明，磷酸锆在膜内分布均匀。X-射线衍射光谱显示水合后截留在膜中的磷酸锆的晶体结构发生了变化。© 2001 The Electrochemical Society。All rights reserved.
A direct methanol fuel cell with a composite Nafion-zirconium phosphate electrolyte membrane was investigated and exhibited good performance at operating temperatures up to∼ 150 C with dry oxidant, under mild fuel preheating conditions (85 C). Typical cell resistances of 0.08 Ω cm 2 were observed under cell operation at 140-150 C. Maximum power densities of 380 and 260 mW cm 2 were achieved under oxygen and air feed, respectively. The distribution of zirconium phosphate inside the membrane was quite uniform, as shown by scanning electron microscopy energy dispersive analysis by X-ray. X-ray diffraction spectra showed modifications in the crystallographic structure of zirconium phosphate entrapped in the membrane upon hydration.© 2001 The Electrochemical Society. All rights reserved.