Pore-scale study of coupled charge, gas, and liquid water transport in the catalyst layer of PEM fuel cells. (Record no. 61998)

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fixed length control field 02294nam a2200265Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20251009160709.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-21909
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 251009s9999 xx 000 0 und d
245 10 - TITLE STATEMENT
Title Pore-scale study of coupled charge, gas, and liquid water transport in the catalyst layer of PEM fuel cells.
490 0# - SERIES STATEMENT
Series statement Fuel, 380, 133141, 2025.
500 ## - GENERAL NOTE
General note Artículo
520 3# - SUMMARY, ETC.
Summary, etc. Understanding the catalyst layer (CL) structure-process-performance relationship is essential for optimizing proton-exchange membrane fuel cells. This study stochastically reconstructs a high-resolution porous CL with a full thickness of 8 μm. The liquid water distribution within CL is simulated by a capillary condensation model, and a pore-scale model coupling oxygen and proton transport with electrochemical reaction is developed to investigate the CL structure-performance relationship under different operating conditions. Results indicate that CL exhibits better performance at higher humidities, up to the flooding threshold at the water saturation of 0.41, as the benefits of increased electrochemical surface area, enhanced proton conductivity, and improved oxygen permeability through the ionomer film significantly outweigh the increased transport resistances through both the pores and the water film. Under the flooding condition at water saturation of 0.41, CL performance starts to decline due to the sharply increased pore resistance. Proper perforation of CL is suggested to alleviate the pore resistance in flooded electrodes. Additionally, reducing the Pt-to-C mass ratio is found to achieve better Pt dispersion in low Pt-loaded electrodes, thereby lowering the local oxygen resistance, and the bilayer CL design with higher Pt content on the membrane side is shown to further mitigate the performance degradation.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element POLYMER ELECTROLYTE MEMBRANE FUEL CELL
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element LIQUID WATER
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PORE-SCALE MODEL
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CATALYST LAYER
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Dou, S.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Hao, L.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Wang, Y.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Wang, Q.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1QvW_YL2s9Iss1AFtrATLTJS8xHs0VUFp/view?usp=drive_link">https://drive.google.com/file/d/1QvW_YL2s9Iss1AFtrATLTJS8xHs0VUFp/view?usp=drive_link</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 09.10.2025   B-21909 09.10.2025 09.10.2025 Documentos solicitados