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Dimensionally stable hexamethylenetetramine functionalized polysulfone anion exchange membranes
Chen, Wanting1; Hu, Mengmeng1; Wang, Haochen2; Wu, Xuemei1; Gong, Xue1; Yan, Xiaoming1,3; Zhen, Dongxing1; He, Gaohong1,3
刊名JOURNAL OF MATERIALS CHEMISTRY A
2017-08-07
DOI10.1039/c7ta01218g
5期:29页:15038-15047
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]FUEL-CELL APPLICATIONS ; ALKALINE POLYMER ELECTROLYTE ; MOLECULAR-DYNAMICS SIMULATION ; POLY(ETHER ETHER KETONE) ; POLY(VINYLBENZYL CHLORIDE) ; PROTON CONDUCTIVITY ; HYDROXIDE ; QUATERNARY ; STABILITY ; CATIONS
英文摘要A novel alkaline group, hexamethylenetetramine (HMTA) with four tertiary amine groups and beta-hydrogenabsent structure, has been employed as mono-quaternization reagent to prepare HMTA mono-quaternized polysulfone anion exchange membranes (PSF-QuOH AEMs). Analyzed by molecular dynamics simulations, mono-quaternized HMTA shows a superior aggregating ability by strong electrostatic interaction with hydroxide to suppress water swelling even at high IECs. In particular, the PSF-QuOH membrane with a high IEC of 2.23 mmol g(-1) exhibits a low swelling ratio of 21% even at 60 degrees C. The resulting high concentration of cationic groups and the interactions between multiple hydrogen atoms in HMTA and hydroxide/water are helpful to induce the formation of the continuous and efficient hydrogen-bond networks, promoting ionic transport. High hydroxide conductivity of 35 mS cm(-1) is achieved at 20 degrees C. Excellent swelling resistance also benefits the mechanical and chemical stabilities of the PSF-QuOH membranes. A considerable mechanical strength of 17.7 MPa is observed in the fully hydrated membrane. The hydroxide conductivity is stable at around 86% of the initial value after 1 M KOH immersion at 60 degrees C for 168 h.
语种英语
WOS记录号WOS:000406187800011
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/151913
专题中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, Sch Chem Engn, Res & Dev Ctr Membrane Sci & Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Dalian Univ Technol, Sch Petr & Chem Engn, Panjin 124221, Peoples R China
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GB/T 7714
Chen, Wanting,Hu, Mengmeng,Wang, Haochen,et al. Dimensionally stable hexamethylenetetramine functionalized polysulfone anion exchange membranes[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(29):15038-15047.
APA Chen, Wanting.,Hu, Mengmeng.,Wang, Haochen.,Wu, Xuemei.,Gong, Xue.,...&He, Gaohong.(2017).Dimensionally stable hexamethylenetetramine functionalized polysulfone anion exchange membranes.JOURNAL OF MATERIALS CHEMISTRY A,5(29),15038-15047.
MLA Chen, Wanting,et al."Dimensionally stable hexamethylenetetramine functionalized polysulfone anion exchange membranes".JOURNAL OF MATERIALS CHEMISTRY A 5.29(2017):15038-15047.
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