Characterization of Nafion XL membrane for PEMFC after VUV degradation and titanium nitride coating
| Autor: | Ratchadaporn Supruangnet, Surachet Rattanasuporn, Kamolwan Rintramee, Yuttakarn Rattanachai |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Absorption spectroscopy Photoemission spectroscopy Proton exchange membrane fuel cell chemistry.chemical_element 02 engineering and technology equipment and supplies 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Titanium nitride 0104 chemical sciences chemistry.chemical_compound Membrane chemistry X-ray photoelectron spectroscopy Chemical engineering Nafion 0210 nano-technology Tin Instrumentation |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 436:292-297 |
| ISSN: | 0168-583X |
| DOI: | 10.1016/j.nimb.2018.10.013 |
| Popis: | The surface Nafion®XL membrane, which suffered from photo-degradation by various VUV irradiations fluences, was investigated by photoemission spectroscopy. After VUV light exposure, the fluorine was dissociated and the C C double bond was then measured. It can be concluded that the membrane degradation was developed, which significantly suppresses the PEMFC efficiency. Degraded membranes were coated with a TiN film by reactive RF-magnetron sputtering to maintain the membrane stability. The modified membranes were investigated by X-ray absorption spectroscopy, X-ray photoelectron spectroscopy and small and wide angle X-ray scattering. The performance of the fuel cell using uncoated and TiN coated membranes decreases with photon fluences; however, the reduction rate of the current density is lower in case of TiN-coated membranes. It was suggested that the TiN film provides greater stability, resulting in a more reliable PEMFC. |
| Databáze: | OpenAIRE |
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