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首页> 外文期刊>RSC Advances >Novel sulfonated poly(ether ether ketone)/triphenylamine hybrid membrane for vanadium redox flow battery applications
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Novel sulfonated poly(ether ether ketone)/triphenylamine hybrid membrane for vanadium redox flow battery applications

机译：新型磺化聚醚醚酮/三苯胺杂化膜在钒氧化还原液流电池中的应用

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摘要

A novel sulfonated poly(ether ether ketone)/triphenylamine hybrid membrane with various triphenylamine loadings (1%, 2% and 5%) has been successfully fabricated. Optimum triphenylamine loading was confirmed by exploring the physicochemical properties and morphology of different membranes. The hybrid membrane exhibited lower vanadium permeability than pristine SPEEK membranes due to the acid–base interaction between amine groups and sulfonated groups. Introduction of triphenylamine also improved the proton conductivity because the nitrogen atom of triphenylamine can be protonated and contribute to the proton transfer. As the result, the hybrid membrane demonstrated higher ion selectivity compared with SPEEK and Nafion115 membranes. The VRFB single cell with SPEEK/TPAM-1% membrane showed better performance compared to a Nafion115 membrane at the current density of 60 mA cm ~(?2) . The SPEEK/TPAM hybrid membrane has great potential for VRFB application.
机译：已经成功地制备了具有不同三苯胺负载量（1％，2％和5％）的新型磺化聚醚醚酮/三苯胺杂化膜。通过研究不同膜的理化性质和形态来确定最佳的三苯胺负载量。由于胺基和磺化基团之间的酸碱相互作用，杂化膜的钒渗透性比原始SPEEK膜低。三苯胺的引入还改善了质子传导性，因为三苯胺的氮原子可被质子化并有助于质子转移。结果，与SPEEK和Nafion115膜相比，杂化膜表现出更高的离子选择性。与Nafion115膜相比，具有SPEEK / TPAM-1％膜的VRFB单电池在60 mA cm〜（？2）的电流密度下表现出更好的性能。 SPEEK / TPAM混合膜具有VRFB应用的巨大潜力。

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