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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
Source PublicationIONICS
ISSN0947-7047
Volume18Issue:5Pages:513-521
AbstractA 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.
KeywordVanadium Redox Flow Battery Sulfonated Organosilica Composite Membrane
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/2057
Collection青海盐湖研究所知识仓储
Recommended Citation
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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