Influence of Pulsed-Substrate Bias Duty Cycle on Microstructure and Properties of Nb-doped TiN Coatings on PEMFC Bipolar Plates

Journal of Materials Engineering and Performance, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Язык: Английский

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Electrochemical Characterization of Aluminum Alloy AlSi10Mg(Fe) for Its Potential Application as End Plate Material in Fuel Cells

Metals, Год журнала: 2025, Номер 15(3), С. 332 - 332

Опубликована: Март 19, 2025

End plates are important multi-functional components of the fuel cells. They provide structural support and responsible for channeling reactant gases, by-product water, cell coolant in out stack. Among various materials used end plates, aluminum alloy is due to its high strength low density. But corrosion resistance depends on environment. The operating conditions may cause become more acidic or basic nature thus can lead plates. In this work, a common die-cast alloy, AlSi10Mg(Fe), behavior direct contact with analyzed. electrochemical characterization uncoated anodized was achieved using impedance spectroscopy, potentiodynamic potentiostatic polarization tests at room temperature 80 °C. It found that sensitivity slightly increased when increases. comparison, reveals decrease after 100 h control, indicating an ongoing passivation surface formation oxides/hydroxides alcohol products.

Язык: Английский

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Lattice Boltzmann simulation of liquid water transport properties in gas diffusion layers using an orthogonal design method

International Journal of Green Energy, Год журнала: 2025, Номер unknown, С. 1 - 15

Опубликована: Март 24, 2025

Язык: Английский

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Styrene and Its Derivatives Used in Proton Exchange Membranes and Anion Exchange Membranes for Fuel Cell Applications: A Review

Batteries, Год журнала: 2025, Номер 11(4), С. 134 - 134

Опубликована: Март 29, 2025

The proton exchange membrane (PEM) is a critical component of fuel cells, responsible for controlling the flow protons while minimizing crossover through its channels. commercial commonly used in cells made Nafion, which expensive and prone to swelling when contact with water. To address these limitations, various polymers have been explored as alternatives replace costly Nafion membrane. Styrene, versatile cost-effective material, has emerged promising candidate. It can be modified into different forms meet requirements cell aromatic rings styrene copolymerize hydrophilic functional groups, enhancing water (H2O) uptake, conductivity, ion capacity (IEC) Additionally, hydrophobic nature helps maintain structural integrity membrane’s channels, reducing excessive crossover. flexible chains facilitate attachment such sulfonic further improving IEC, thermal stability, mechanical strength, oxidative stability. This review article explores application derivatives membranes, focus on (PEMFCs), direct methanol (DMFCs), anion (AEMFCs).

Язык: Английский

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Pore-scale simulations investigating mechanical compression effects on transport properties at gas diffusion layer/micro-porous layer interfaces in proton exchange membrane fuel cells

Journal of Power Sources, Год журнала: 2025, Номер 642, С. 236962 - 236962

Опубликована: Апрель 8, 2025

Язык: Английский

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