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Preparation and Properties of Poly (phthalazinone Ether Ketone) Based Anion Exchange Membranes for Vanadium Redox Flow Battery

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Abstract:

Poly (phthalazinone ether ketone) anion exchange membranes with pyridinium groups (PyPPEK) for vanadium redox flow battery were prepared from chloromethylated poly (phthalazinone ether ketone) and pyridine. The chemical structure of PyPPEK was characterized by using FT-IR spectrum. Compared with quaternary ammonium group containing poly (phthalazinone ether ketone), PyPPEK membrane showed low ion exchange capacity, low swelling ratio and comparable tensile strength. Columbic efficiencies of VRB with anion exchange membranes were higher than that of VRB with Nafion117 membrane. When the ion exchange capacity of PyPPEK membrane was 1.40 mmol·g-1, energy efficiency of VRB with the membrane was higher than that of VRB with Nafion117 membrane at charge-discharge current densities ranging from 20 mA·cm-2 to 50 mA·cm-2.

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Periodical:

Advanced Materials Research (Volume 773)

Pages:

171-174

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.773.171

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Online since:

September 2013

Authors:

Shou Hai Zhang, Ben Gui Zhang, Xi Gao Jian

Keywords:

Anion Exchange Membrane, Poly(phthalazinone ether ketone), Pyridinium, Vanadium Redox Flow Battery

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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