Enhancement of sulfonated poly(ether ether ketone)-based proton exchange membranes doped with different ionic liquids cations
| Autor: | Emilse M.A. Martini, Ernesto C. Pereira, Edson R. Leite, Letícia Guerreiro da Trindade, Josiane Carneiro Souza, Letícia Zanchet |
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| Přispěvatelé: | Universidade Federal de São Carlos (UFSCar), Universidade Estadual Paulista (Unesp), Universidade Federal do Rio Grande do Sul |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
General Chemical Engineering General Physics and Astronomy Proton exchange membrane fuel cell 02 engineering and technology Ionic liquid Conductivity 010402 general chemistry Electrochemistry 01 natural sciences chemistry.chemical_compound Sulfonated poly(ether ether ketone) General Materials Science chemistry.chemical_classification Dopant Proton exchange membranes Fuel cell Doping General Engineering Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Membrane chemistry Chemical engineering 0210 nano-technology |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1862-0760 0947-7047 |
| Popis: | Made available in DSpace on 2020-12-12T01:30:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 Herein, to balance the overall performance of SPEEK membrane, the imidazolium hydrogen sulfate (Im.HSO4), 1-methylimidazolium hydrogen sulfate (MI.HSO4), and 1-butyl-3-methylimidazolium hydrogen sulfate (BMI.HSO4) ionic liquids (ILs) were used as dopants in polymer matrix. A series of SPEEK/ionic liquid composite membranes were successfully fabricated by casting method and evaluated. Comparative studies showed that the membranes doped with 5 wt.% of MI.HSO4 or BMI.HSO4 ILs showed an increase in the proton conductivity of 50% and 30% at 80 °C, respectively, compared with the pristine SPEEK membrane. The proton exchange membrane fuel cell (PEMFC) performance demonstrated that the membrane doped with 5 wt.% of BMI.HSO4 IL (SBMI5) has the highest current density value and the highest power density without loss of performance as temperature increases. This result indicates that this membrane is promising for fuel cells application. Chemistry Department Federal University of São Carlos, P. O. Box 676 Department of Chemistry Universidade Estadual Paulista–Unesp, P.O. Box 473 LRC-Institute of Chemistry Universidade Federal do Rio Grande do Sul, P. O. Box 15003 Department of Chemistry Universidade Estadual Paulista–Unesp, P.O. Box 473 |
| Databáze: | OpenAIRE |
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