中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 大连化学物理研究所
  3. 中国科学院大连化学物理研究所
Mechanism and transfer behavior of ions in Nafion membranes under alkaline media

文献类型：期刊论文

作者Xu, Wenbin2,3; Li, Xianfeng2,3; Hu, Jing1,2; Zhang, Huamin2,3; Yuan, Zhizhang2
刊名JOURNAL OF MEMBRANE SCIENCE
出版日期2018-11-15
卷号566页码:8-14
关键词Nafion membrane Ion transfer mechanism Density functional theory-based simulation Zinc iron flow battery
ISSN号0376-7388
DOI10.1016/j.memsci.2018.08.057
通讯作者Yuan, Zhizhang(yuanzhizhang@dicp.ac.cn) ; Li, Xianfeng(lixianfeng@dicp.ac.cn)
英文摘要Nafion series cation exchange membranes are extensively investigated and applied in proton exchange membrane fuel cells and flow battery technologies because of their excellent stability and easy availability. However, a deep understanding of their ions transport mechanism and behavior under the alkaline based flow battery media is very limited. Here, the ion transport mechanism through Nafion membrane under alkaline medium is investigated by small-angle X-ray scattering and atomic force microscope techniques. The results indicate that a membrane showed a higher degree of phase separation and larger cluster radius in a NaOH solution than those in a KOH solution, which endows the membrane with a much higher ion conductivity in the NaOH solution. Density functional theory-based simulation also indicates that the adsorption and desorption between the Na+ and the -SO3- in Nafion is faster than those of K+. Inspired by these results, an alkaline zinc iron flow battery with a Nafion 212 membrane using NaOH as the supporting electrolyte exhibits a coulombic efficiency of similar to 99% and an energy efficiency of similar to 86% at 80 mA cm(-2). This work offers insights into ways to obtain an improved battery performance for the existing as well as the emerging alkaline based flow battery technologies.
WOS关键词REDOX-FLOW BATTERY ; FUEL-CELL ; EXCHANGE MEMBRANES ; ELECTROLYTE ; ENERGY
资助项目National Natural Science Foundation of China[21206158] ; Key project of Frontier Science, CAS project[QYZDB-SSW-JSC032] ; DICP QIBEBT[DICP & QIBEBT UN201707]
WOS研究方向Engineering ; Polymer Science
语种英语
WOS记录号WOS:000445152100002
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key project of Frontier Science, CAS project ; Key project of Frontier Science, CAS project ; DICP QIBEBT ; DICP QIBEBT ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key project of Frontier Science, CAS project ; Key project of Frontier Science, CAS project ; DICP QIBEBT ; DICP QIBEBT ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key project of Frontier Science, CAS project ; Key project of Frontier Science, CAS project ; DICP QIBEBT ; DICP QIBEBT ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key project of Frontier Science, CAS project ; Key project of Frontier Science, CAS project ; DICP QIBEBT ; DICP QIBEBT
源URL[http://cas-ir.dicp.ac.cn/handle/321008/167030]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Li, Xianfeng; Yuan, Zhizhang
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Wenbin,Li, Xianfeng,Hu, Jing,et al. Mechanism and transfer behavior of ions in Nafion membranes under alkaline media[J]. JOURNAL OF MEMBRANE SCIENCE,2018,566:8-14.
APA Xu, Wenbin,Li, Xianfeng,Hu, Jing,Zhang, Huamin,&Yuan, Zhizhang.(2018).Mechanism and transfer behavior of ions in Nafion membranes under alkaline media.JOURNAL OF MEMBRANE SCIENCE,566,8-14.
MLA Xu, Wenbin,et al."Mechanism and transfer behavior of ions in Nafion membranes under alkaline media".JOURNAL OF MEMBRANE SCIENCE 566(2018):8-14.

入库方式： OAI收割

来源：大连化学物理研究所

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。