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Robust anion exchange membranes based on ionic liquid grafted chitosan/polyvinyl alcohol/quaternary ammonium functionalized silica for polymer electrolyte membrane fuel cells.
Jang, Hak Su; Jeong, Ha Neul; Eom, Sang Min; Han, Seong Min; Kim, Seong Heon; Kwon, Hyun Woong; Im, Kwang Seop; Vijayakumar, Vijayalekshmi; Nam, Sang Yong.
Afiliación
  • Jang HS; Department of Polymer Science and Engineering, School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Jeong HN; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Eom SM; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Han SM; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Kim SH; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Kwon HW; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Im KS; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Vijayakumar V; Research Institute for Green Energy Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea. Electronic address: vijayalekshmiv85@gmail.com.
  • Nam SY; Department of Polymer Science and Engineering, School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea; Research Institu
Int J Biol Macromol ; 262(Pt 2): 129979, 2024 Mar.
Article en En | MEDLINE | ID: mdl-38331065
ABSTRACT
In this study, 1-bromohexyl-1methylpiperidinium bromide (Br-6-MPRD) ionic liquid grafted quaternized chitosan (QCS) and polyvinyl alcohol (PVA) blends were composited with glycidyl trimethyl ammonium chloride (GTMAC) quaternized silica (QSiO2) at different dosages. Glutaraldehyde (GA) crosslinked the membranes and then processed into hydroxide form with an aqueous potassium hydroxide solution. The resultant IL-QCS/PVA/QSiO2 membranes exhibit significantly improved ionic conductivity, moderate water absorption and swelling ratio compared with the pristine IL-QCS/PVA anion exchange membrane (AEM). Among them, the hydroxide ion conductivity and power density of IL-QCS/PVA/QSiO2-7 membrane can reach up to 78 mS cm-1 at 80 °C and 115 mW cm-2 at 60 °C respectively. In addition, IL-QCS/PVA/QSiO2 membranes have excellent thermal, mechanical, and chemical stabilities, which can meet the application requirements of AEM for fuel cells.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Quitosano / Líquidos Iónicos / Compuestos de Amonio / Hidróxidos / Metacrilatos Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article
Texto completo
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Quitosano / Líquidos Iónicos / Compuestos de Amonio / Hidróxidos / Metacrilatos Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article