TY - JOUR
T1 - Imidazolium-based organic-inorganic hybrid anion exchange membranes for fuel cell applications
AU - Feng, Tianying
AU - Lin, Bencai
AU - Zhang, Shuai
AU - Yuan, Ningyi
AU - Chu, Fuqiang
AU - Hickner, Michael A.
AU - Wang, Chenyu
AU - Zhu, Liang
AU - Ding, Jianning
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China (Nos. 51303017 and 31200637 ), Natural Science Foundation of Jiangsu Province ( BK20151187 and BK2014025 ), a research fund of Jiangnan Graphene Research Institute ( KFKT201501 ), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions .
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/6/15
Y1 - 2016/6/15
N2 - 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.
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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U2 - 10.1016/j.memsci.2016.02.019
DO - 10.1016/j.memsci.2016.02.019
M3 - Article
AN - SCOPUS:84959079749
SN - 0376-7388
VL - 508
SP - 7
EP - 14
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -