Facile and cost-effective nickel-anchored nanofibril V2O5 electrocatalyst for efficient oxygen evolution reaction

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 113, P. 395 - 405

Published: March 1, 2025

Language: Английский

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Highly Efficient Oxygen Vacancy-Enriched MD-NiMoO₄: A Surface Reactivity Descriptor for Energy-Saving Green Hydrogen Generation

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: 8(1), P. 503 - 517

Published: Jan. 3, 2025

Herein, we report a simple mechanochemical dehydration (MD) method to synthesize MD-NiMoO4, which is treated with NaBH4 generate oxygen vacancy-enriched MD-NiMoO4–SBH understand the role of defects on water splitting performance. Among as-prepared catalysts, MD-NiMoO4–SBH, MD-NiO, and MD-MoO, exhibits superior activity by demanding small overpotential (OER/HER) 241/108 mV Tafel slope 97/85 dec–1 (MD-NiMoO4: 293/156 mV; slope: 114/93 dec–1) stable for ∼100 h. The activation energies were calculated electrolysis using (32 kJ/mol) MD-NiMoO4 (28 kJ/mol). integrated areas 5.41 × 10–5 AV (MD-NiMoO4–SBH) 3.61 (MD-NiMoO4) confirmed MOOH* formation, number active sites was found be 3.484 10–16 6.540 (MD-NiMoO4–SBH). superaerophobicity corroborated rapid gas bubble growth as well fast evolution from catalyst surface. bifunctional electrolyzer (1.48 V) (1.59 released vigorous bubbles in alkaline electrolyte robust durability, could employed devices practical utility. As observed electrochemical results, MO theory reveals that band gap state-assisted antibonding state having low electron occupancy favor OER HER kinetics.

Language: Английский

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Recent advancements in hexacyanoferrate-based electrode materials for supercapacitor applications: A comprehensive review

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 103, P. 114160 - 114160

Published: Oct. 24, 2024

Language: Английский

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Boosting the structural, electrical properties, and optical features of porous starch/poly(ethylene oxide) reinforced with NiMoO4 nanocrystals

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 36(1)

Published: Dec. 20, 2024

Language: Английский

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