Proton and Methanol Transport in Poly(perfluorosulfonate) Membranes Containing Cs + and H + Cations
Proton and Methanol Transport in Poly(perfluorosulfonate) Membranes Containing Cs + and H + Cations
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DOI：
10.1149/1.1838876
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发表时间：
1998-11
影响因子：
3.9
通讯作者：
V. Tricoli
中科院分区：
文献类型：
--
作者：
V. Tricoli
对聚全氟磺酸薄膜进行了不同程度的铯离子掺杂。与H{sup+}型膜一起，研究了它们与甲醇渗透性和氢离子电导率的关系。在保持相当大的导电性的同时，掺铯薄膜对甲醇具有高度的阻透性。作者发现，由于铯离子的存在，膜中的甲醇渗透率降低了一个数量级以上。这些发现是在铯在膜微结构中产生的变化的基础上讨论的。还讨论了这些结果在直接甲醇燃料电池技术中的潜在意义。
Poly(perfluorosulfonate acid) membranes were doped with cesium ions to several degrees. These, along with the H{sup +}-form membrane, were investigated in relation to methanol permeability as well as hydrogen ion conductivity. While retaining considerable conductivity, the cesium-doped membranes are highly impermeable to methanol. The author found that methanol permeability in the membrane reduced by over one order of magnitude, owing to the presence of cesium ions. These findings are discussed on the basis of alterations produced by cesium in the membrane microstructure. Also discussed is the potential implication of these results in the direct methanol fuel cell technology.