A novel permselective branched sulfonated polyimide membrane containing crown ether with remarkable proton conductance and selectivity for application in vanadium redox flow battery
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作者:
Long, Jun
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Long, Jun
[1
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Huang, Wenheng
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Huang, Wenheng
[1
,2
]
Li, Jingfeng
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Li, Jingfeng
[1
,2
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Yu, Yafei
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Yu, Yafei
[1
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]
Zhang, Bo
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Zhang, Bo
[1
,2
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Li, Jinchao
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R China
Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Li, Jinchao
[1
,2
,3
]
Zhang, Yaping
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Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Zhang, Yaping
[1
,2
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Duan, Hao
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机构:
Sichuan Langsheng New Energy Technol Co Ltd, Suining 629200, Peoples R ChinaSouthwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
Duan, Hao
[4
]
机构:
[1] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang 621010, Peoples R China
[2] Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R China
[3] Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
[4] Sichuan Langsheng New Energy Technol Co Ltd, Suining 629200, Peoples R China
As a key component of vanadium redox flow battery (VRFB), the ideal membrane with high proton conductance together with high vanadium ions resistance is urgently required. In this work, a permselective monomer di (aminobenzo)-18-crown-6 with proper aperture of 0.26-0.32 nm is synthesized to prepare branched sulfo-nated polyimide containing crown ether (ce-bSPI-x) membranes. In virtue of the excellent balance between vanadium ions resistance and proton conductance, the ce-bSPI-60 membrane possesses the optimum physico-chemical properties among all ce-bSPI-x membranes. Subsequently, in comparison with commercial Nafion 212 membrane, the ce-bSPI-60 membrane demonstrates higher coulomb efficiencies (CEs) (96.50%-99.39%) and energy efficiencies (EEs) (69.36%-85.45%). Furthermore, the ce-bSPI-60 membrane can achieve 80% of EE at 140 mA cm-2, which is in a superior position compared with other SPI-based membranes reported in recent years. 1000-time cycles at 140 mA cm-2 without obvious structural and morphological changes proves the excellent durability of ce-bSPI-60 membrane. To sum up, the as-prepared ce-bSPI-60 membrane exhibits a great potential to match the demand of application in VRFB.
机构:
Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Dai, Wenjing
Yu, Lihong
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机构:
Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Yu, Lihong
Li, Zhaohua
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机构:
Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Li, Zhaohua
Yan, Jia
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Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Yan, Jia
Liu, Le
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Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Liu, Le
Xi, Jingyu
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机构:
Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Tsinghua Univ, Grad Sch Shenzhen, Key Lab Thermal Management Engn & Mat, Shenzhen 518055, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Xi, Jingyu
Qiu, Xinping
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Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
机构:
Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China
Chen, Dongyang
Wang, Shuanjin
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Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China
Wang, Shuanjin
Xiao, Min
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Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China
Xiao, Min
Meng, Yuezhong
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Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China