Metallic Co and FeNi alloy hybrid nanoparticles immobilized into N-doped graphene-like carbon nanosheets as an efficient bifunctional oxygen electrocatalyst for rechargeable Zn-air batteries

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 645, P. 237211 - 237211

Published: April 30, 2025

Language: Английский

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Material Design and Catalyst-Membrane Electrode Interface Engineering for High-Performance Rechargeable Zinc-Air Batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: unknown, P. 103985 - 103985

Published: Dec. 1, 2024

Language: Английский

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Engineering CoN₄ and FeN₄ Dual Sites with Adjacent Nanoclusters on Flexible Porous Carbon Fibers for Enhanced Electrocatalytic Oxygen Reduction and Evolution

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Abstract Dual‐atom catalysts (DACs) possess tunable electronic structures and efficient atom utilization, making them highly promising for catalyzing the oxygen reduction reaction/oxygen evolution reaction (ORR/OER). However, achieving high catalytic activity stability both ORR OER in DACs remains a challenge. Herein, flexible membrane of porous carbon fiber anchored with atomically scattered CoN 4 /FeN dual sites adjacent Co 2 Fe /Fe 5 nanoclusters (Co, Fe‐DACs/NCs@PCF) is synthesized. The local geometry structure sites, which act as centers ORR/OER, are finely regulated by neighboring nanoclusters. This unique imparts Co, Fe‐DACs/NCs@PCF exceptional durability toward outperforming performance single‐atom containing only or FeN well commercial Pt/C RuO catalysts. Zinc–air battery employing cathode exhibits outstanding stability, maintaining cyclability over 1500 h, + air cathode. Theoretical calculations highlight distinct synergies between (Co ) clusters (CoN optimize coupling strength Fe(Co)─OH at potential‐determining steps thus improve (OER) kinetics. study lays theoretical practical foundation rational design heterostructure featuring coexisting within fibers.

Language: Английский

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Reversible Zn and Mn deposition in NiFeMn-LDH cathodes for aqueous Zn–Mn batteries

RSC Advances, Journal Year: 2024, Volume and Issue: 14(48), P. 35704 - 35714

Published: Jan. 1, 2024

Introducing NiFeMn-Layered Double Hydroxide (LDH) as an innovative cathode material for Zn-Mn batteries, this study focuses on bolstering the electrochemical efficiency and stability of system. We explored effect varying Zn/Mn molar ratio in electrolyte battery's performance investigated underlying reaction mechanism. Our results show that 4 : 1 achieves a balance between capacity stability, with areal 0.20 mA h cm

Language: Английский

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Hierarchical ZnCoS@CoFe-layered double hydroxide on Ni foam to enhance the OER performance for water splitting

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This describes the synthesis process and performance of ZnCoS@CoFe-LDH/NF.

Language: Английский

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Electrocatalytic properties of ultrathin FeSe2/Ni0·85Se heterostructure hollow nanobelts for oxygen evolution in alkaline water and simulated seawater

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 97, P. 632 - 639

Published: Dec. 4, 2024

Language: Английский

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Built-in electric field induced by defected carbons adjacent to graphitic nitrogen valley for efficient oxygen reduction reaction and zinc-air batteries

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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