Understanding the performance degradation and recovery of passive direct ethanol fuel cell
In developing a fuel cell, one of the major issues that obstruct the commercialization of fuel cells is cell degradation. Meanwhile, the recovery process is an important factor to upgrade the performance and durability of fuel cell system. In this work, a passive direct ethanol fuel cell (DEFC) reco...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/22/e3sconf_ri2c2022_01007.pdf |
| _version_ | 1818068316009267200 |
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| author | Ekdharmasuit Panuwat |
| author_facet | Ekdharmasuit Panuwat |
| author_sort | Ekdharmasuit Panuwat |
| collection | DOAJ |
| description | In developing a fuel cell, one of the major issues that obstruct the commercialization of fuel cells is cell degradation. Meanwhile, the recovery process is an important factor to upgrade the performance and durability of fuel cell system. In this work, a passive direct ethanol fuel cell (DEFC) recovered from the unused aged cell was investigated. The hydrogen evolution method was applied for recovering the cell performance. Electrochemical tools including cell polarization, anode polarization, electrochemical impedance spectroscopy (EIS), ethanol crossover measurement, and chronoamperometry were conducted to examine the activation phenomenon. The polarization curve of the fresh membrane electrode assembly (MEA) was obviously superior to the aged one. The maximum power density was decreased from 1.10 to 0.06 mW·cm-2 reaching an approximate 95% decrement after keeping the cell for 1 year. The polarization curve of the MEA after conducting hydrogen evolution was better than that before. The maximum power density was enhanced from 0.06 to 0.07 mW·cm-2 presenting an approximate 16.67% increment after recovering the cell. The MEA after the recovery process could reduce ohmic resistance by 67.40% indicating the enhancement of ionic and electronic conductivity and could improve kinetic reaction at the electrode. In conclusion, the recovery process would be helpful for the unused aged cell to improve the performance shortly. |
| first_indexed | 2024-12-10T15:37:38Z |
| format | Article |
| id | doaj.art-110d96f1d86f4d8da334ad1a9c868275 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-10T15:37:38Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-110d96f1d86f4d8da334ad1a9c8682752022-12-22T01:43:11ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013550100710.1051/e3sconf/202235501007e3sconf_ri2c2022_01007Understanding the performance degradation and recovery of passive direct ethanol fuel cellEkdharmasuit Panuwat0Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong CampusIn developing a fuel cell, one of the major issues that obstruct the commercialization of fuel cells is cell degradation. Meanwhile, the recovery process is an important factor to upgrade the performance and durability of fuel cell system. In this work, a passive direct ethanol fuel cell (DEFC) recovered from the unused aged cell was investigated. The hydrogen evolution method was applied for recovering the cell performance. Electrochemical tools including cell polarization, anode polarization, electrochemical impedance spectroscopy (EIS), ethanol crossover measurement, and chronoamperometry were conducted to examine the activation phenomenon. The polarization curve of the fresh membrane electrode assembly (MEA) was obviously superior to the aged one. The maximum power density was decreased from 1.10 to 0.06 mW·cm-2 reaching an approximate 95% decrement after keeping the cell for 1 year. The polarization curve of the MEA after conducting hydrogen evolution was better than that before. The maximum power density was enhanced from 0.06 to 0.07 mW·cm-2 presenting an approximate 16.67% increment after recovering the cell. The MEA after the recovery process could reduce ohmic resistance by 67.40% indicating the enhancement of ionic and electronic conductivity and could improve kinetic reaction at the electrode. In conclusion, the recovery process would be helpful for the unused aged cell to improve the performance shortly.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/22/e3sconf_ri2c2022_01007.pdfdirect ethanol fuel cell (defc)passive fuel cellcell recovery processhydrogen evolution methoddegradation |
| spellingShingle | Ekdharmasuit Panuwat Understanding the performance degradation and recovery of passive direct ethanol fuel cell E3S Web of Conferences direct ethanol fuel cell (defc) passive fuel cell cell recovery process hydrogen evolution method degradation |
| title | Understanding the performance degradation and recovery of passive direct ethanol fuel cell |
| title_full | Understanding the performance degradation and recovery of passive direct ethanol fuel cell |
| title_fullStr | Understanding the performance degradation and recovery of passive direct ethanol fuel cell |
| title_full_unstemmed | Understanding the performance degradation and recovery of passive direct ethanol fuel cell |
| title_short | Understanding the performance degradation and recovery of passive direct ethanol fuel cell |
| title_sort | understanding the performance degradation and recovery of passive direct ethanol fuel cell |
| topic | direct ethanol fuel cell (defc) passive fuel cell cell recovery process hydrogen evolution method degradation |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/22/e3sconf_ri2c2022_01007.pdf |
| work_keys_str_mv | AT ekdharmasuitpanuwat understandingtheperformancedegradationandrecoveryofpassivedirectethanolfuelcell |