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题名: Sulfonated Ti3C2Tx to construct proton transfer pathways in polymer electrolyte membrane for enhanced conduction
作者: Zhang, Jiakui1;  Liu, Yahua1;  Lv, Zhiqiang2;  Zhao, Tongkun1;  Li, Ping1;  Sun, Yilei1;  Wang, Jingtao1
关键词: Ti3C2Tx sheet ;  Polymer electrolyte membrane ;  Sulfonated polyelectrolyte brushes ;  Proton transfer pathway ;  Proton conduction
刊名: SOLID STATE IONICS
发表日期: 2017-11-01
DOI: 10.1016/j.ssi.2017.08.013
卷: 310, 页:100-111
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Here, Ti3C2Tx sheets, a representative of MXenes, with lamellar structure and hydrophilic surface are prepared, and then functionalized with sulfonated polyelectrolyte brushes (Ti3C2Tx-SO3H) through a facile surface-initiated precipitation-polymerization. The Ti3C2Tx-SO3H is then utilized as a new nanofiller to fabricate hybrid proton exchange membrane, where both acidic sulfonated poly (ether ether ketone) (SPEEK) and basic chitosan (CS) are employed as polymer matrixes. The resultant hybrid membranes are systematically characterized and measured including their microstructures, water uptake and proton conduction properties. The results demonstrate that using the sulfonated polyelectrolyte brushes, Ti3C2Tx-SO3H sheets construct efficient proton transfer pathways and connect the inherent conduction channels/paths in polymer phase. This significantly enhances the proton conduction of polymer membrane including SPEEK membrane and CS membrane, under both hydrated condition and anhydrous condition. Particularly, the incorporation of 10 wt.% Ti3C2Tx-SO3H readily offers 144% and 66% increase in proton conductivity, respectively, to SPEEK membrane and CS membrane under hydrated condition. Furthermore, the hybrid membranes achieve improved thermal and mechanical stabilities. These results herald further advances to preparing functionalized MXenes and their relevant hybrid materials with enhanced performances.
关键词[WOS]: FUEL-CELL APPLICATIONS ;  EXCHANGE MEMBRANES ;  CHITOSAN MEMBRANES ;  WATER-RETENTION ;  GRAPHENE OXIDE ;  LOW HUMIDITY ;  MXENE ;  ACID ;  NANOCOMPOSITES ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000414108800013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149682
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, Jiakui,Liu, Yahua,Lv, Zhiqiang,et al. Sulfonated Ti3C2Tx to construct proton transfer pathways in polymer electrolyte membrane for enhanced conduction[J]. SOLID STATE IONICS,2017,310:100-111.
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