A Highly Ion-Selective Zeolite Flake Layer on Porous Membranes for Flow Battery Applications
A Highly Ion-Selective Zeolite Flake Layer on Porous Membranes for Flow Battery Applications
复制标题
用于液流电池应用的多孔膜上的高离子选择性沸石片层
DOI：
10.1002/anie.201510849
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发表时间：
2016-02-24
影响因子：
16.6
通讯作者：
Zhang, Huamin
中科院分区：
文献类型：
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作者：
Yuan, Zhizhang;Zhu, Xiangxue;Zhang, Huamin
沸石是结晶微孔铝硅酸盐，具有周期性排列的笼和明确的通道，这使得它们非常适合分离不同尺寸的离子，因此也可用于电池应用。在此，将超薄 ZSM-35 沸石片引入到聚醚砜基多孔膜上。沸石的孔径（约0.5nm）介于水合钒离子（>0.6nm）和质子之间（99%，在200mAcm(-2)下能量效率>81%，这是迄今为止报道的最高值。这些令人信服的结果表明沸石涂层膜在电池应用中具有广阔的前景。
Zeolites are crystalline microporous aluminosilicates with periodic arrangements of cages and well-defined channels, which make them very suitable for separating ions of different sizes, and thus also for use in battery applications. Herein, an ultra-thin ZSM-35 zeolite flake was introduced onto a poly(ether sulfone) based porous membrane. The pore size of the zeolite (ca. 0.5nm) is intermediary between that of hydrated vanadium ions (>0.6nm) and protons (99% and an energy efficiency of >81% at 200mAcm(-2), which is by far the highest value ever reported. These convincing results indicate that zeolite-coated membranes are promising in battery applications.