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| Hauptseite > Publikationsdatenbank > Study on solid electrolyte catalyst poisoning in solid acid fuel cells > print |
| Hauptseite > Publikationsdatenbank > Study on solid electrolyte catalyst poisoning in solid acid fuel cells > print |
| 001 | 892356 | ||
| 005 | 20240712113250.0 | ||
| 024 | 7 | _ | |a 10.1039/D1TA01002F |2 doi |
| 024 | 7 | _ | |a 2050-7488 |2 ISSN |
| 024 | 7 | _ | |a 2050-7496 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2021-02017 |
| 082 | _ | _ | |a 530 |
| 100 | 1 | _ | |a Wagner, Maximilian |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Study on solid electrolyte catalyst poisoning in solid acid fuel cells |
| 260 | _ | _ | |a London [u.a.] |c 2021 |b RSC |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1622469671_7876 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Solid acid fuel cells operate at intermediate temperatures utilizing a solid electrolyte (CsH2PO4, CDP). However, relatively little is known about the degradation mechanism and the topic is rarely addressed. Phosphate poisoning of the platinum catalyst is a well-known problem for fuel cells working with H3PO4 as electrolyte. With CsH2PO4 as electrolyte, phosphate poisoning is therefore likely to occur as well. In this study we show a fast and reversible degradation behavior of solid acid fuel cells and associate it with poisoning of the catalyst. After a decline in power output of around 50% within hours, an in situ reactivation of the cell to almost the initial performance was possible by multiple cycling between the voltage of 0.1 V and 2.0 V. A limitation of the effect to the cathode is shown and the underlying process was analyzed by changes in the low frequency domain of impedance measurements, which is indicating a catalyst poisoning, and by the dependency from the upper vertex voltage. By employing a micro porous current collector, a decrease in the low frequency domain as well as enhanced stability (<125 μV h−1 at 0.43 V) was achieved. This work extends from a detailed insight in the degradation mechanism of solid acid fuel cells, to providing a working electrode modification to prevent poisoning, establishing a promising electrode stability on a laboratory scale. |
| 536 | _ | _ | |a 134 - Electrolysis and Hydrogen (POF3-134) |0 G:(DE-HGF)POF3-134 |c POF3-134 |f POF III |x 0 |
| 536 | _ | _ | |a 1231 - Electrochemistry for Hydrogen (POF4-123) |0 G:(DE-HGF)POF4-1231 |c POF4-123 |f POF IV |x 1 |
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| 700 | 1 | _ | |a Lorenz, Oliver |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Lohmann-Richters, Felix P. |0 P:(DE-Juel1)176513 |b 2 |
| 700 | 1 | _ | |a Varga, Áron |0 0000-0002-7094-9313 |b 3 |
| 700 | 1 | _ | |a Abel, Bernd |0 0000-0001-6032-1680 |b 4 |
| 773 | _ | _ | |a 10.1039/D1TA01002F |g p. 10.1039.D1TA01002F |0 PERI:(DE-600)2702232-8 |p 11347-11358 |t Journal of materials chemistry / A |v 9 |y 2021 |x 2050-7496 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/892356/files/d1ta01002f.pdf |y Restricted |
| 856 | 4 | _ | |y Published on 2021-04-19. Available in OpenAccess from 2022-04-19. |u https://juser.fz-juelich.de/record/892356/files/Wagner_Maximilian%20et%20al.pdf |
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