MARC details
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02349nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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20250625164351.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-21229 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Insight into the evolution of membrane chemical degradation in proton exchange membrane fuel cells:From theoretical analysis to model developing |
| 490 0# - SERIES STATEMENT |
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| Series statement |
Journal of Power Sources. 599, 234238, 2024, DOI: 10.1016/j.jpowsour.2024.234238 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
The chemical degradation of the proton exchange membrane (PEM) causes the changes in membrane properties and morphology, which directly affects the cell performance and membrane degradation. In this work, the changes of PEM during the chemical degradation are theoretically analyzed at both microscopic and mesoscopic levels. Based on the theoretical study, a bidirectionally coupled physical model of PEM fuel cell (PEMFC) performance and PEM chemical degradation is developed, which is used to investigate the evolutions of cell performance and chemical degradation. It can be found that the open circuit voltage first increases slightly and then decreases with time, and the ohmic loss increases rapidly under accelerated degradation conditions. The membrane chemical degradation is analyzed in terms of four aspects: the mass loss rate of the membrane, the region of pronounced degradation, the contribution of different degradation mechanisms and the proportion of ionomer species remaining. Furthermore, the effect of operating conditions on the degradation is examined. The degradation is most sensitive to voltage and has the fastest rate at high voltage, high temperature, high gas pressure and relative humidity of 60%. This work provides a deep insight into the PEM chemical degradation, which is instructive for the long-term prediction of PEMFC lifetime. © 2024 Elsevier B.V. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
BIDIRECTIONAL COUPLING MODEL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CHEMICAL MEMBRANE DEGRADATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
PEM CHANGES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POLYMER ELECTROLYTE MEMBRANE FUEL CELL |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Chen S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hao M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hu Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Liu K. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Li Y. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1UkTILYp0a7GyoYgNEjlXHpvOiqinibg9/view?usp=drivesdk">https://drive.google.com/file/d/1UkTILYp0a7GyoYgNEjlXHpvOiqinibg9/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
