中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Mechanism of Polysulfone-Based Anion Exchange Membranes Degradation in Vanadium Flow Battery
作者: Yuan, Zhizhang1, 3;  Li, Xianfeng1, 2;  Zhao, Yuyue1, 3;  Zhang, Huamin1, 2
关键词: degradation mechanism ;  polysulfone ;  4,4 '-bipyridine ;  hybrid orbital ;  anion exchange membranes ;  vanadium flow battery
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2015-09-02
DOI: 10.1021/acsami.5b05840
卷: 7, 期:34, 页:19446-19454
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Science & Technology - Other Topics ;  Materials Science
英文摘要: The stability of hydrocarbon ion exchange membranes is one of the critical issues for a flow battery. However, the degradation mechanism of ion exchange membranes has been rarely investigated especially for anion exchange membranes. Here, the degradation mechanism of polysulfone based anion exchange membranes, carrying pyridine ion exchange groups, under vanadium flow battery (VFB) medium was investigated in detail. We find that sp(2) hybrid orbital interactions between pyridinic-nitrogen in 4,4'-bipyridine and benzylic carbon disrupt the charge state balance of pristine chloromethylated polysulfone. This difference in electronegativity inversely induces an electrophilic carbon center in the benzene ring, which can be attacked by the lone pair electron on the vanadium(V) oxygen species, further leading to the degradation of polymer backbone, while leaving the 4,4'-bipyridine ion exchange groups stable. This work represents a step toward design and construction of alternative type of chemically stable hydrocarbon ion exchange membranes for VFB.
关键词[WOS]: ALKALINE FUEL-CELLS ;  RAMAN-SPECTROSCOPY ;  INFRARED-SPECTRA ;  AQUEOUS-SOLUTION ;  ENERGY-STORAGE ;  FT-RAMAN ;  COMPLEXES ;  ELECTROLYTES ;  PERFORMANCE ;  COPOLYMERS
语种: 英语
WOS记录号: WOS:000360868700067
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146530
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Yuan, Zhizhang,Li, Xianfeng,Zhao, Yuyue,et al. Mechanism of Polysulfone-Based Anion Exchange Membranes Degradation in Vanadium Flow Battery[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(34):19446-19454.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Yuan, Zhizhang]'s Articles
 [Li, Xianfeng]'s Articles
 [Zhao, Yuyue]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Yuan, Zhizhang]‘s Articles
 [Li, Xianfeng]‘s Articles
 [Zhao, Yuyue]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace