Scalable progress for advanced bifunctional electrocatalysts for practical zinc-air batteries

Journal of Energy Storage, Год журнала: 2025, Номер 109, С. 115230 - 115230

Опубликована: Янв. 2, 2025

Язык: Английский

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Biphase Alloy Nanoheterojunction Encapsulated within N‐Doped Carbon Nanotubes as Bifunctional Oxygen Electrocatalyst for High‐Performance Zn‐Air and Mg‐Air Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract N‐doped carbon confined alloy catalysts possess considerable potential in facilitating oxygen electrocatalytic reaction and consequent applications metal air batteries, but the sluggish catalytic kinetics high barrier of reduction (ORR) remain bottleneck restricting its further development. Here, a novel CoFe‐NiFe biphase nanoheterojunction encapsulated within nanotubes (CoFe‐NiFe@NCNT) is fabricated via hydrothermal carbothermic approach. Owing to plentiful active sites electrical conductance, difference between OER ORR amounts merely 0.68 V. Simultaneously, performance Zn‐air Mg‐air batteries assembled by CoFe‐NiFe@NCNT serving as air‐cathode are superior that commercial Pt/C + RuO 2 . The DFT outcomes reveal transformation *OOH *O rate‐determining step (RDS) ORR/OER. Also, synergy heterojunction conducive reduce energy barrier. This study offers profound understanding toward structural design electrocatalysts utilization metal‐air for portable wearable electronic apparatuses.

Язык: Английский

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Efficient trifunctional electrocatalysts with iron single atoms electronically coupled with adjacent ruthenium nanoclusters for zinc-air battery-powered water splitting

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер 368, С. 125127 - 125127

Опубликована: Фев. 4, 2025

Язык: Английский

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Design Strategies for Practical Zinc‐Air Batteries Toward Electric Vehicles and beyond

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 21, 2025

Abstract Zinc‐air batteries (ZABs) offer promising forthcoming large‐scale high‐density storage systems and the cost‐effectiveness of electrode materials, specifically in solid‐state liquid electrolytes. However, uncontrolled diffusion utilization irreversible zinc components cell design principles limit practical applications with severe capacity fade interfacial reactions. In this perspective article, aim is to shed lights on underlying mechanisms solid electrolytes interfaces alongside current status prospective research insights. Formulations ampere‐hour (Ah)‐scale cylindrical/pouch cells are discussed for 100–500 Wh kg −1 cell‐level energy metrics under realistic operations. The electrode/electrolyte interface dynamics, scale‐up readiness, testing protocols, key performance also suggested transforming lab‐scale into production.

Язык: Английский

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TiN Boosting the Oxygen Reduction Performance of Fe–N–C through the Relay-Catalyzing Mechanism for Metal–Air Batteries

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Metal–air batteries desire highly active, durable, and low-cost oxygen reduction catalysts to replace expensive platinum (Pt). The Fe–N–C catalyst is recognized as the most promising candidate for Pt; however, its durability hindered by carbon corrosion, while activity restricted due limited reaction. Herein, TiN creatively designed be hybridized with (TiN/Fe–N–C) relieve corrosion absorb more when catalyzing reduction. half-wave potential of TiN/Fe–N–C 0.915 V vs reverse hydrogen electrode 15 mV lost after 30,000 cycles accelerated test, higher than 0.893 26 Pt/C. solid zinc–air battery achieves a peak power density 238 mW/cm2, 2100 cycle stability at 30 °C, long-term 1100 h under −20 superior 150 mW/cm2 500 (−20 °C) Both calculations experiments indicate that has dual functions which not only relay abundant reaction but also strengthen adsorption force intermediates reaction, thus, enhancing Fe–N–C. Therefore, proposed catalytic strategy offers an efficient energy conversion devices.

Язык: Английский

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In situ construction of high-content Fe, N co-doped carbon nanotube networks for efficient oxygen reduction reactions in both alkaline and acidic environments

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178815 - 178815

Опубликована: Янв. 1, 2025

Язык: Английский

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Tailoring asymmetric atomic strain of FeN4 sites for enhanced acidic oxygen reduction reaction

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160174 - 160174

Опубликована: Фев. 1, 2025

Язык: Английский

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Metal-saloph Complexes Pre-coordination for Fe Single Atom Catalyst towards Oxygen Reduction Reaction in Rechargeable Quasi-solid-state Zn-air Battery

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125189 - 125189

Опубликована: Фев. 1, 2025

Язык: Английский

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Engineering electrospun nanofiber electrocatalysts for oxygen electrocatalysis in Zn-air batteries

Ionics, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

Язык: Английский

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Cation (Cr3+, Zn2+, Cu2+ and Mn3+) doping to construct high entropy spinel oxide nanocrystals for modulation of oxygen evolution reaction

Fuel, Год журнала: 2025, Номер 393, С. 134992 - 134992

Опубликована: Март 9, 2025

Язык: Английский

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