Preparations of an inorganic-framework proton exchange nanochannel membrane
作者： X.H. Yan , H.R. Jiang , G. Zhao , L. Zeng , T.S. Zhao
DOI: 10.1016/J.JPOWSOUR.2016.07.022
关键词: Range (particle radiation) 、 Membrane 、 Activation energy 、 Conductivity 、 Molecule 、 Proton exchange membrane fuel cell 、 Proton 、 Chemical engineering 、 Analytical chemistry 、 Chemistry 、 Charge carrier
摘要: Abstract In this work, a proton exchange membrane composed of straight and aligned conducting nanochannels is developed. Preparation the involves surface sol-gel method assisted with through-hole anodic aluminum oxide (AAO) template to form framework PEM nanochannels. A monomolecular layer (SO 3 H (CH 2 ) Si (OCH subsequently added onto inner surfaces shape proton-conducting pathway. Straight exhibit long range order morphology, contributing substantial improvement in mobility conductivity. addition, nanochannel size can be altered by changing condition, allowing control active species/charge carrier selectivity via pore exclusion. The conductivity reported as high 11.3 mS cm −1 at 70 °C low activation energy 0.21 eV (20.4 kJ mol ). First-principle calculations reveal that for transfer impressively (0.06 eV 0.07 eV) assistance water molecules.
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