State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Chem Commun (Camb). 2012 Mar 18;48(23):2870-2. doi: 10.1039/c2cc17230e. Epub 2012 Feb 6.
We developed a method to significantly decrease the methanol permeability of a Nafion membrane that does not require sacrificing its proton conductivity and mechanical stability. The Nafion membrane modified by the coating of a thin layer of sulfonated organic silica on the membrane surface exhibits significantly decreased methanol permeability--the permeability is decreased to an undetectable level--while retaining an acceptable ionic conductivity of 0.029 S cm(-1).
我们开发了一种方法，可以显著降低 Nafion 膜的甲醇透过率，而不会牺牲其质子传导率和机械稳定性。在膜表面涂覆一层薄的磺化有机硅层修饰的 Nafion 膜，表现出显著降低的甲醇透过率——透过率降低到无法检测的水平——同时保持可接受的离子电导率 0.029 S cm(-1)。
