A Microblock Ionomer in Proton Exchange Membrane Electrolysis for the Production of High Purity Hydrogen

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• 作者：Daniel W. Smith ; Fatai O. Oladoyinbo ; William A. Mortimore ; Howard M. Colquhoun ; Magnus S. Thomassen ; Anders 脴deg氓rd ; Nicolas Guillet ; Eric Mayousse ; Tomas Klicpera ; Wayne Hayes
• 刊名：Macromolecules
• 出版年：2013
• 出版时间：February 26, 2013
• 年：2013
• 卷：46
• 期：4
• 页码：1504-1511
• 全文大小：376K
• 年卷期：v.46,no.4(February 26, 2013)
• ISSN：1520-5835

文摘

Proton exchange membranes (PEM鈥檚) are currently under investigation for membrane water electrolysis (PEMWE) to deliver efficient production of the high purity hydrogen needed to supply emerging clean-energy technologies such as hydrogen fuel cells. The microblock aromatic ionomer described in this work achieves high mechanical strength in an aqueous environment as a result of its designed, biphasic morphology and displays many of the qualities required in a PEM. The new ionomer membrane thus shows good proton conductivity (63 mS cm^鈥? at 80 掳C and 100% RH), while retaining mechanical integrity under high temperature, hydrated conditions. Testing in electrolysis has shown good energy efficiency (1.67 V at 1 A cm^{鈥?/sup>2 and 80 掳C, corresponding to 4 kWh/Nm3 of H₂), making this ionomer a potential candidate for commercial application in PEMWE.}