Preparation and Characterization of Perfluorosulfonate‐Free Phosphosilicate Glass‐Based Composite Proton‐Exchange Membrane. Issue 2 (1st February 2013)

• Record Type: Journal Article
• Authors: Di, Z.; Li, H.; Li, M.; Mao, D.; Chen, X.; Xiao, M.
• Is Part Of: Fuel cells. Volume 13:Issue 2(2013:Apr.)
• Page Start: 126
• Page End: 133
• Publication Date: 2013-02-01
• Subjects: Fuel cells -- Periodicals; 621.312429
• DOI: 10.1002/fuce.201200214
• Languages: English
• ISSNs: 1615-6846

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Based on hydrothermally treated phosphosilicate (SiO₂–P₂O₅) glass and sulfonated poly(ether ether ketone) (SPEEK) polymer, perfluorosulfonate‐free SiO₂–P₂O₅/SPEEK composite membranes are prepared. The morphology, thermal and mechanical properties, pore structure, proton conductivity, water uptake, as well as the fuel cell performances of the SiO₂–P₂O₅/SPEEK composite membranes are investigated. The SiO₂–P₂O₅/SPEEK composite membranes with proton conductive SiO₂–P₂O₅ glass powders of more than 50 wt.% were determined to be flexible due to the incorporation of the SPEEK polymer component, and it showed proton conductivities of above 10^–2 S cm^–1. A single H₂/O₂ fuel cell was assembled based on the SiO₂–P₂O₅/SPEEK composite membrane, and was found to release a peak power density of 355.6 mW cm^–2 at 68 °C.</p> </abstract>