Compressive behaviour of thin catalyst layers. Part II - Model development and validation

Malekian, Ali; Salari, Sina; Tam, Mickey; Djilali, Ned; Bahrami, Majid

doi:10.1016/j.ijhydene.2019.04.135

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Typical experimental methods used for surface area measurements include BET [ 113 ], MSP [ 42 ], and MMP [ 114 ]. The mean pore size is an artificial indicator representing the mean size of channels in CLs for reactant and water transport, which depends on the pore surface area and volume, while it has different expressions with different assumptions of equivalent pore shapes (e.g., cylindrical or spherical) [ 115 , 116 ].…”

Section: Formation Visualization and Characterization Of Catalyst Lay...mentioning

confidence: 99%

Structure, Property, and Performance of Catalyst Layers in Proton Exchange Membrane Fuel Cells

Zhao

Liu

2023

Electrochem. Energy Rev.

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Catalyst layer (CL) is the core component of proton exchange membrane (PEM) fuel cells, which determines the performance, durability, and cost. However, difficulties remain for a thorough understanding of the CLs’ inhomogeneous structure, and its impact on the physicochemical and electrochemical properties, operating performance, and durability. The inhomogeneous structure of the CLs is formed during the manufacturing process, which is sensitive to the associated materials, composition, fabrication methods, procedures, and conditions. The state-of-the-art visualization and characterization techniques are crucial to examine the CL structure. The structure-dependent physicochemical and electrochemical properties are then thoroughly scrutinized in terms of fundamental concepts, theories, and recent progress in advanced experimental techniques. The relation between the CL structure and the associated effective properties is also examined based on experimental and theoretical findings. Recent studies indicated that the CL inhomogeneous structure also strongly affects the performance and degradation of the whole fuel cell, and thus, the interconnection between the fuel cell performance, failure modes, and CL structure is comprehensively reviewed. An analytical model is established to understand the effect of the CL structure on the effective properties, performance, and durability of the PEM fuel cells. Finally, the challenges and prospects of the CL structure-associated studies are highlighted for the development of high-performing PEM fuel cells. Graphical abstract

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Section: Formation Visualization and Characterization Of Catalyst Lay...mentioning

confidence: 99%

Structure, Property, and Performance of Catalyst Layers in Proton Exchange Membrane Fuel Cells

Zhao

Liu

2023

Electrochem. Energy Rev.

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show abstract

“…Under cyclic compression, the plastic deformation was more obvious, indicating that the microstructure of the CL changed. In their next study, using the effective medium theory, a CL compression analysis model was established to simulate the impact of compression on CL characteristics [69].…”

Section: Assembly Effect On CLmentioning

confidence: 99%

“…Malekian et al [71] analysed the change in pore size distribution and porosity of the CL under compression to explain the microscale effect of the assembly load on the CL. They used the geometric model in their previous work [69] to simulate the random distribution of the CL pore size. The effects of compression on four different CLs were studied, and the simulation results were compared with previous experimental data.…”

Section: Assembly Effect On CLmentioning

confidence: 99%

Assembly techniques for proton exchange membrane fuel cell stack: A literature review

Song

Wang

Ding

et al. 2022

Renewable and Sustainable Energy Reviews

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Nanoscopic Post-Compression Effects on Transport Phenomena and Electrochemical Utilization in Quaternion Catalyst Layers for Fuel Cell Applications

Park,

Akbar,

Lee

et al. 2023

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Compressive behaviour of thin catalyst layers. Part II - Model development and validation

Cited by 5 publications

References 39 publications

Structure, Property, and Performance of Catalyst Layers in Proton Exchange Membrane Fuel Cells

Structure, Property, and Performance of Catalyst Layers in Proton Exchange Membrane Fuel Cells

Assembly techniques for proton exchange membrane fuel cell stack: A literature review

Nanoscopic Post-Compression Effects on Transport Phenomena and Electrochemical Utilization in Quaternion Catalyst Layers for Fuel Cell Applications

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