Imidazolium-based organic-inorganic hybrid anion exchange membranes for fuel cell applications

Tianying Feng, Bencai Lin, Shuai Zhang, Ningyi Yuan, Fuqiang Chu, Michael Anthony Hickner, Chenyu Wang, Liang Zhu, Jianning Ding

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Imidazolium-based ionic liquids and imidazolium-based organic-inorganic hybrid alkaline anion exchange membranes (AEMs) are synthesized and investigated in the present work. The imidazolium-based hybrid AEMs are prepared via in situ cross-linking of styrene, acrylonitrile, 1-vinyl-propyl-triethoxysilaneimidazolium chloride ([VPSIm][Cl]) and 1-vinyl-3-butylimidazolium bromide ([VBIm][Br]), followed by anion exchange with hydroxide ions. The water uptake and swelling degree of the hybrid AEMs decrease with increasing [VPSIm][Cl] content due to the formation of an Si-O-Si inorganic network in the membranes. The resulting organic-inorganic hybrid AEMs show good thermal stability, excellent mechanical properties and high conductivity (above 10-2 S cm-1 at room temperature in liquid water). Compared with samples without the addition of [VPSIm][Cl], the hybrid membranes show much higher alkaline stability, and the hybrid AEMs displayed excellent chemical stability up to 480 h in 2 M KOH solution at 60 °C.

Original languageEnglish (US)
Pages (from-to)7-14
Number of pages8
JournalJournal of Membrane Science
Volume508
DOIs
StatePublished - Jun 15 2016

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fuel cells
Anions
Fuel cells
Ion exchange
Negative ions
Cell Membrane
anions
membranes
Membranes
Acrylonitrile
Vinyl Chloride
Ionic Liquids
Styrene
acrylonitriles
Water
Chemical stability
liquids
Bromides
Ionic liquids
styrenes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Feng, Tianying ; Lin, Bencai ; Zhang, Shuai ; Yuan, Ningyi ; Chu, Fuqiang ; Hickner, Michael Anthony ; Wang, Chenyu ; Zhu, Liang ; Ding, Jianning. / Imidazolium-based organic-inorganic hybrid anion exchange membranes for fuel cell applications. In: Journal of Membrane Science. 2016 ; Vol. 508. pp. 7-14.
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Imidazolium-based organic-inorganic hybrid anion exchange membranes for fuel cell applications. / Feng, Tianying; Lin, Bencai; Zhang, Shuai; Yuan, Ningyi; Chu, Fuqiang; Hickner, Michael Anthony; Wang, Chenyu; Zhu, Liang; Ding, Jianning.

In: Journal of Membrane Science, Vol. 508, 15.06.2016, p. 7-14.

Research output: Contribution to journalArticle

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T1 - Imidazolium-based organic-inorganic hybrid anion exchange membranes for fuel cell applications

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AU - Lin, Bencai

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AU - Hickner, Michael Anthony

AU - Wang, Chenyu

AU - Zhu, Liang

AU - Ding, Jianning

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AB - Imidazolium-based ionic liquids and imidazolium-based organic-inorganic hybrid alkaline anion exchange membranes (AEMs) are synthesized and investigated in the present work. The imidazolium-based hybrid AEMs are prepared via in situ cross-linking of styrene, acrylonitrile, 1-vinyl-propyl-triethoxysilaneimidazolium chloride ([VPSIm][Cl]) and 1-vinyl-3-butylimidazolium bromide ([VBIm][Br]), followed by anion exchange with hydroxide ions. The water uptake and swelling degree of the hybrid AEMs decrease with increasing [VPSIm][Cl] content due to the formation of an Si-O-Si inorganic network in the membranes. The resulting organic-inorganic hybrid AEMs show good thermal stability, excellent mechanical properties and high conductivity (above 10-2 S cm-1 at room temperature in liquid water). Compared with samples without the addition of [VPSIm][Cl], the hybrid membranes show much higher alkaline stability, and the hybrid AEMs displayed excellent chemical stability up to 480 h in 2 M KOH solution at 60 °C.

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