Sulfonated poly (fluorenyl ether ketone nitrile) membranes used for high temperature PEM fuel cell
| Autor: | Chungang Xu, Guoqing Liu, Mei Yang, Yingnan Zou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Fuel technology Materials science Nitrile Proton exchange membrane fuel cell Ether Conductivity Proton exchange membrane 03 medical and health sciences chemistry.chemical_compound Energy storage technology 0302 clinical medicine Chemical engineering Copolymer Relative humidity Chemical synthesis lcsh:Social sciences (General) Poly (fluorenyl ether ketone nitrile) Polarization (electrochemistry) lcsh:Science (General) Multidisciplinary Energy Chemical energy storage Fuel cell Membrane Renewable energy resources High temperature 030104 developmental biology chemistry lcsh:H1-99 030217 neurology & neurosurgery Research Article lcsh:Q1-390 |
| Zdroj: | Heliyon, Vol 6, Iss 9, Pp e04855-(2020) Heliyon |
| ISSN: | 2405-8440 |
| Popis: | A series of sulfonated poly (fluorenyl ether ketone nitrile)s with different equivalent weights (EW) ranging from 681 to 369 g mequiv.−1 were used to assemble a series of single proton exchange membrane fuel cells (PEMFC) in their turns. The mechanical strength and morphology of the copolymer were studied systematically. This paper mainly evaluated and compared their cell performance. The polarization curves showed that the prepared films have good performance at low temperature and high relative humidity. Due to the increase of temperature, dehydration seriously deteriorated the performance of the cell, especially for the membrane with high electron flow and low proton conductivity. However, at 100 °C, the cell performance of the membrane containing 441 g mequiv.- 1 was even better than that of Nafion@117 membrane. It could even be used at 125 °C. In the short life test, the output power density was stable at about 0.24 W•cm−2 within 24 h. These results show that our membranes were suitable for the applications of PEM fuel cell at high temperature. Chemical engineering; Energy; Chemical energy storage; Chemical synthesis; Energy storage technology; Fuel technology; Membrane; Renewable energy resources; Fuel cell; High temperature; Poly (fluorenyl ether ketone nitrile); Proton exchange membrane |
| Databáze: | OpenAIRE |
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