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论文类型：期刊论文

发表时间：2013-05-15

发表刊物：Advanced Materials Research

收录刊物：EI、Scopus

卷号：773

页面范围：171-174

ISSN号：9783037857908

摘要：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&middotg-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&middotcm-2 to 50 mA&middotcm-2. © (2013) Trans Tech Publications, Switzerland.