Effect of 'bridge' on the performance of organic-inorganic crosslinked hybrid proton exchange membranes via KH550
| Autor: | Jingmei Xu, Zhe Wang, Hai Qiang Li, Hailan Han, Shuang Wang, Meiyu Liu, Lishuang Xu, Hongzhe Ni |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Renewable Energy Sustainability and the Environment Arylene Energy Engineering and Power Technology Ionic bonding Proton exchange membrane fuel cell Ether 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Membrane chemistry Covalent bond Polymer chemistry Thermal stability Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Power Sources. 340:126-138 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2016.11.066 |
| Popis: | A series of novel organic-inorganic crosslinked hybrid proton exchange membranes were prepared using sulfonated poly(arylene ether ketone sulfone) polymers containing carboxyl groups (C-SPAEKS), (3-aminopropyl)-triethoxysilane (KH550), and tetraethoxysilane (TEOS). KH550 acted as a “bridge” after reacting with carboxyl and sulfonic groups of C-SPAEKS to form covalent and ionic crosslinked structure between the C-SPAEKS and SiO2 phase. The crosslinked hybrid membranes (C-SPAEKS/K-SiO2) were characterized by FT-IR spectroscopy, TGA, and electrochemistry, etc. The thermal stability, mechanical properties and proton conductivity of the crosslinked hybrid membranes were improved by the presence of both crosslinked structure and inorganic phase. The proton conductivity of C-SPAEKS/K-SiO2-8 was recorded as 0.110 S cm−1, higher than that of Nafion® (0.028 S cm−1) at 120 °C. Moreover, the methanol permeability of the C-SPAEKS/K-SiO2-8 was measured as 3.86 × 10−7 cm2 s−1, much lower than that of Nafion® 117 membranes (29.4 × 10−7 cm2 s−1) at 25 °C. |
| Databáze: | OpenAIRE |
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