Strategies for the preparation of MOFs-based composites and their research progress in electrocatalysis

Microporous and Mesoporous Materials, Год журнала: 2025, Номер unknown, С. 113560 - 113560

Опубликована: Фев. 1, 2025

Язык: Английский

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Piezoelectric field-enhanced Van der Waals/electrostatic forces boost adsorption of biomass polar groups on piezoelectric BiVO4 for efficient PEC hydrogen production

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163273 - 163273

Опубликована: Апрель 1, 2025

Язык: Английский

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Dual Functions of Optimized FeCo Oxyhydroxide Composition in BiVO₄ Photoanodes with Bi Vacancy for Photocorrosion Inhibition and Improved Photoelectrochemical Performance

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(19), С. 28309 - 28320

Опубликована: Май 4, 2025

Excessive hole-accumulation-induced photocorrosion is considered a key factor that limits the activity of photoelectrochemical water splitting reaction. In this study, heterogeneous catalyst was prepared by simple impregnation method, i.e., modification different ratios heterometallic oxyhydroxides (FexCo1-xOOH) on in situ photoreduction-treated BiVO4 (Bi-BVO). This work demonstrates for first time adjusting FeCo ratio can greatly enhance separation, transport, and directional control electron-hole pairs, thus inhibiting photocorrosion. The Bi-BVO/Fe0.7Co0.3OOH composite exhibited photocurrent density 0.243 mA cm-2 at 1.23 VRHE (4.5 times pure under 1.5 G AM illumination) sacrificial agent-free Na2SO4 electrolyte. After 20 h continuous illumination, optimized samples showed negligible attenuation (7.2%). strong stability light conditions be attributed to Fe Co acting as hole shuttling mediators, which efficiently match generation rate Bi-BVO transport surface active sites. Furthermore, formation Co-O-V bonds passivation states, immobilize V5+ lattice, further inhibit bimetallic oxyhydroxide strategy provides valuable insights into mitigating offers an optimization approach splitting.

Язык: Английский

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Catalytically Active Bimetallic Nickel–Cobalt MOF Linked Via Pyridine 2, 6-Dicarboxylate for Electrochemical Water Splitting Applications

Arabian Journal for Science and Engineering, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 11, 2024

Язык: Английский

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