Nafion/organically modified silicate hybrids membrane for vanadium redox flow battery
文献类型：期刊论文
| 作者 | Teng, XG ; Zhao, YT ; Xi, JY ; Wu, ZH ; Qiu, XP ; Chen, LQ |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2009 |
| 卷号 | 189期号:2页码:1240 |
| 关键词 | SOL-GEL-REACTIONS PERFLUOROSULFONIC ACID IONOMER ORMOSIL PHASE NANOSTRUCTURES MODIFIED NAFION MEMBRANE STATE NMR-SPECTROSCOPY FUEL-CELL APPLICATIONS MICROSTRUCTURAL EVOLUTION PHOTOVOLTAIC SYSTEMS COMPOSITE MEMBRANES EXCHANGE MEMBRANES |
| ISSN号 | 0378-7753 |
| 通讯作者 | Qiu, XP (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China. |
| 中文摘要 | In our previous work, Nafion/SiO(2) hybrid membrane was prepared via in situ sol-gel method and used for the vanadium redox flow battery (VRB) system. The VRB with modified Nafion membrane has shown great advantages over that of the VRB with Nafion membrane. In this work, a novel Nafion/organically modified silicate (ORMOSIL) hybrids membrane was prepared via in situ sol-gel reactions for mixtures of tetraethoxysilane (TEOS) and diethoxydimethylsilane (DEDMS). The primary properties of Nafion/ORMOSIL hybrids membrane were measured and compared with Nafion and Nafion/SiO(2) hybrid membrane. The permeability of vanadium ions through the Nafion/ORMOSIL hybrids membrane was measured using an UV-vis spectrophotometer. The results indicate that the hybrids membrane has a dramatic reduction in crossover of vanadium ions compared with Nafion membrane. Fourier transform infrared spectra (FT-IR) analysis of the hybrids membrane reveals that the ORMOSIL phase is well formed within hybrids membrane. Cell tests identify that the VRB with Nafion/ORMOSIL hybrids membrane presents a higher coulombic efficiency (CE) and energy efficiency (EE) compared with that of the VRB with Nafion and Nafion/SiO(2) hybrid membrane. The highest EE of the VRB with Nafion/ORMOSIL hybrids membrane is 87.4% at 20mA cm(-2). while the EE of VRB with Nafion and the EE of VRB with Nafion/SiO(2) hybrid membrane are only 73.8% and 79.9% at the same current density. The CE and EE of VRB with Nafion/ORMOSIL hybrids membrane is nearly no decay after cycling more than 100 times (60mA cm(-2)), which proves the Nafion/ORMOSIL hybrids membrane possesses high chemical stability during long charge-discharge process under strong acid solutions. The self-discharge rate of the VRB with Nafion/ORMOSIL hybrids membrane is the slowest among the VRB with Nafion, Nafion/SiO(2) and Nafion/ORMOSIL membrane,which further proves the excellent vanadium ions blocking characteristic of the prepared hybrids membrane. (c) 2008 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [50606021]; State Key Basic Research Program of China [2009CB220105] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49641]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Teng, XG,Zhao, YT,Xi, JY,et al. Nafion/organically modified silicate hybrids membrane for vanadium redox flow battery[J]. JOURNAL OF POWER SOURCES,2009,189(2):1240. |
| APA | Teng, XG,Zhao, YT,Xi, JY,Wu, ZH,Qiu, XP,&Chen, LQ.(2009).Nafion/organically modified silicate hybrids membrane for vanadium redox flow battery.JOURNAL OF POWER SOURCES,189(2),1240. |
| MLA | Teng, XG,et al."Nafion/organically modified silicate hybrids membrane for vanadium redox flow battery".JOURNAL OF POWER SOURCES 189.2(2009):1240. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。