A hybrid bipolar membrane

A hybrid bipolar membrane
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混合双极膜

DOI:
10.1016/j.memsci.2010.09.016
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发表时间:
2010-12
影响因子:
9.5
通讯作者:
Wang, Anlei
Wang, Anlei
中科院分区:
工程技术1区
文献类型:
--
作者:
Wu, Yonghui;Xu, Tongwen;Huang, Chuanhui;Peng, Shuchuan;Wang, Anlei

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开发了一种用于高温应用的杂化双极膜。特别地,阳离子交换层通过将磺化聚(2,6-二甲基-1,4-苯醚)(SPPO)与(3-氨丙基)三乙氧基硅烷(A1100)杂化来制备,而阴离子交换层由杂化阴离子交换材料-聚(VBC-co-γ-MPS)(VBC,乙烯基苄基氯; γ-MPS,γ-甲基丙烯酰氧基丙基三甲氧基硅烷)制备。结果表明,在阴/阳离子交换层中引入无机SiO2,可使双极膜在25-80°C具有更高的热稳定性和水分解效率。此外,在中间层中加入了凹凸棒石和FeCl 3以进一步增强水的解离。所有这些改性使得最终的杂化双极膜在高温下有希望使用。
A hybrid bipolar membrane was developed for high-temperature applications. In particular, the cation-exchange layer was prepared by hybridizing sulfonated poly (2,6-dimethyl-1,4-phenylene oxide) (SPPO) with (3-aminopropyl) triethoxysilane (A1100) while the anion-exchange layer was prepared from a hybrid anion-exchange material—poly(VBC-co-γ-MPS) (VBC, vinylbenzyl chloride; γ-MPS, γ-methacryloxypropyl trimethoxy silane). The results indicated that, by incorporation of inorganic silica in the anion/cation exchange layers, the bipolar membrane could have higher thermal stability and efficiency of water dissociation at 25–80°C. Moreover, palygorskite and FeCl3were added into the intermediate layer to further enhance water dissociation. All these modifications made the final hybrid bipolar membrane promising for use at high temperature.
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