Development of novel Nb and Ta multilayer coatings for corrosion protection of Ti-based bipolar plates for Proton Exchange Membrane Fuel Cells

Corrosion Science, Год журнала: 2025, Номер unknown, С. 112707 - 112707

Опубликована: Янв. 1, 2025

Язык: Английский

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High‐Density CuBi₂O₄ Photocathodes Using Well‐Textured Buffer Layers and Their Unassisted Solar Hydrogen Production Performances

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Abstract Solar hydrogen production using photoelectrochemical (PEC) cells requires the selection of cost‐effective materials with high photoactivity and durability. CuBi 2 O 4 photocathodes possess an appropriate bandgap for efficient production. However, their performance is limited by poor charge transport interface voids formed due to porous structure during annealing, which complicates deposition passivation overlayers. To address this, effective suppression in essential. Here, study proposes strategic use Sb‐Cu buffer layer a uniform (111) crystal orientation prior electrodeposition Cu‐Bi‐O. This facilitates 2D film growth electrodeposition, enhancing Cu supply via out‐diffusion from annealing. Moreover, promotes crystallization , significantly improving efficiency. By incorporating Al‐ZnO/TiO overlayer, achieves photocurrent 2.56 mA cm −2 at 0 V RHE onset potential 1.04 excellent stability exceeding 60 hours. In glycerol oxidation reaction coupled production, unassisted PEC cell BiVO photoanode demonstrates highest H (750.5 µmol ) among Cu‐based ternary oxides, 97% Faradaic efficiency over 20 hours while producing DHA, formic acid.

Язык: Английский

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Enhanced corrosion resistance and conductivity of 316L bipolar plate via depositing Ta/TaC/a-C multilayer coatings

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106654 - 106654

Опубликована: Май 1, 2025

Язык: Английский

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Synergy strategy of multi-metals confined in heteroatom framework toward constructing high-performance water oxidation electrocatalysts

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 680, С. 976 - 986

Опубликована: Ноя. 10, 2024

Язык: Английский

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