Optimisation and characterisation of graphene-based microporous layers for polymer electrolyte membrane fuel cells

Lee, F.C.; Ismail, M.S.; Zhang, Kai; Ingham, D.B.; Aldakheel, Fahad; Hughes, Kevin J.; Ma, Lin; Pourkashanian, Mohamed

doi:10.1016/j.ijhydene.2023.05.003

Cited by 6 publications

(4 citation statements)

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“…The addition of graphene nanosheets to the MPL improves the performance of PEMFC in both low-and high-humidity conditions [45]. The addition of graphene to MPL has been found to decrease membrane dehydration in low humidity conditions.…”

Section: Graphene Nanosheetsmentioning

confidence: 95%

“…In this case, there are fewer pathways for water removal from the surface, which hinders air flow towards the through-plane. As a result, through-plane permeability and efficiency decrease with increasing graphene content [45,48]. The electrical conductivity of graphene nanoplatelets is significantly affected by the number of graphene layers, lateral size, and material purity [49].…”

Section: Graphene Nanosheetsmentioning

confidence: 99%

“…The electrical conductivity of graphene nanoplatelets is significantly affected by the number of graphene layers, lateral size, and material purity [49]. The resistivity measurements indicate that the inclusion of just 30% graphene in MPL significantly enhances the electronic conductivity of the layer, resulting in a 20% reduction in resistivity compared to a conventional carbon black-based MPL [45].…”

Section: Graphene Nanosheetsmentioning

confidence: 99%

“…The high graphene content in the catalyst caused agglomeration, which characterizes the inefficiency of using such a layer to periodically remove water generated at the cathode [56]. The electrochemical performance deterioration is caused by mass transfer issues, which can be attributed to the presence of mesopores and densely stacked graphene sheets [45].…”

Section: Graphene Nanosheetsmentioning

confidence: 99%

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Recent Advances in the Development of Nanocarbon-Based Electrocatalytic/Electrode Materials for Proton Exchange Membrane Fuel Cells: A Review

Zasypkina,

Ivanova,

Spasov

et al. 2024

Catalysts

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The global issue for proton exchange membrane fuel cell market development is a reduction in the device cost through an increase in efficiency of the oxygen reduction reaction occurring at the cathode and an extension of the service life of the electrochemical device. Losses in the fuel cell performance are due to various degradation mechanisms in the catalytic layers taking place under conditions of high electric potential, temperature, and humidity. This review is devoted to recent advances in the field of increasing the efficiency and durability of electrocatalysts and other electrode materials by introducing structured carbon components into their composition. The main synthesis methods, physicochemical and electrochemical properties of materials, and performance of devices on their basis are presented. The main correlations between the composition and properties of structured carbon electrode materials, which can provide successful solutions to the highlighted issues, are revealed.

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Section: Graphene Nanosheetsmentioning

confidence: 95%