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Nafion-sulfonated organosilica composite membrane for all vanadium redoxflow battery
Teng, Xiangguo; Lei, Jie; Gu, Xuecai; Dai, Jicui; Zhu, Yongming; Li, Faqiang
2012
发表期刊IONICS
ISSN0947-7047
卷号18期号:5页码:513-521
摘要A novel Nafion-sulfonated diphenyldimethoxysilane (N-sDDS) composite membrane is prepared and employed in vanadium redox flow battery (VRB). Ion exchange capacity, proton conductivity, water transport behavior, and the cell performances are characterized. Fourier transform-infrared and X-ray diffraction analysis indicate that the sulfonated diphenyldimethoxysilane (sDDS) particles are successfully introduced into the Nafion matrix. In VRB single cell test, the VRB with N-sDDS membrane exhibits nearly the same coulombic efficiency as the unmodified Nafion membrane, but higher voltage efficiency than that of the VRB with unmodified Nafion membrane. The VRB with N-sDDS composite membrane keeps a stable performance after 60 times charge-discharge test. In the self-discharge test, the VRB with the N-sDDS membrane presented a lower self-discharge rate than that of the VRB with Nafion membrane. All results show that the addition of s-DDS is a simple and efficient way to improve the conductivity of Nafion, and the composite membrane shows good potential use for VRB. A novel Nafion-sulfonated diphenyldimethoxysilane (N-sDDS) composite membrane is prepared and employed in vanadium redox flow battery (VRB). Ion exchange capacity, proton conductivity, water transport behavior, and the cell performances are characterized. Fourier transform-infrared and X-ray diffraction analysis indicate that the sulfonated diphenyldimethoxysilane (sDDS) particles are successfully introduced into the Nafion matrix. In VRB single cell test, the VRB with N-sDDS membrane exhibits nearly the same coulombic efficiency as the unmodified Nafion membrane, but higher voltage efficiency than that of the VRB with unmodified Nafion membrane. The VRB with N-sDDS composite membrane keeps a stable performance after 60 times charge-discharge test. In the self-discharge test, the VRB with the N-sDDS membrane presented a lower self-discharge rate than that of the VRB with Nafion membrane. All results show that the addition of s-DDS is a simple and efficient way to improve the conductivity of Nafion, and the composite membrane shows good potential use for VRB.
关键词Vanadium Redox Flow Battery Sulfonated Organosilica Composite Membrane
收录类别SCI
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/2057
专题青海盐湖研究所知识仓储
推荐引用方式
GB/T 7714
Teng, Xiangguo,Lei, Jie,Gu, Xuecai,et al. Nafion-sulfonated organosilica composite membrane for all vanadium redoxflow battery[J]. IONICS,2012,18(5):513-521.
APA Teng, Xiangguo,Lei, Jie,Gu, Xuecai,Dai, Jicui,Zhu, Yongming,&Li, Faqiang.(2012).Nafion-sulfonated organosilica composite membrane for all vanadium redoxflow battery.IONICS,18(5),513-521.
MLA Teng, Xiangguo,et al."Nafion-sulfonated organosilica composite membrane for all vanadium redoxflow battery".IONICS 18.5(2012):513-521.
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