Ultra-thin, Free-Standing Proton-Conducting Membrane with Organic/Inorganic Sandwich Structure

✍ Scribed by Haibin Li; Man Yi; Fengjing Jiang

• Book ID: 102941175
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 569 KB
• Volume: 211
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.200900723

✦ Synopsis

Abstract

An ultra‐thin, flexible, free‐standing, proton‐conducting membrane of (PEI/PCGF)/SiO~2~/(PEI/PCGF) with a sandwich structure has been prepared. Giant membranes with areas up to about 16 cm^2^ and thicknesses of 600 nm have been obtained. The inorganic silica layer suppresses methanol permeation, while the two organic layers provide sufficient mechanical strength and flexibility. This membrane exhibits efficient proton conductivity and low methanol permeability.

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