Research progress of Zn-air batteries suitable for extreme temperatures

Energy storage materials, Год журнала: 2024, Номер 69, С. 103429 - 103429

Опубликована: Апрель 23, 2024

Язык: Английский

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The dual gain strategy of introducing nickel doping and anchoring amorphous iron oxyhydroxide nanosheets on ZIF-67 achieves an efficient oxygen evolution reaction

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 129501 - 129501

Опубликована: Сен. 3, 2024

Язык: Английский

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Biomass Solid‐State Electrolyte with Abundant Ion and Water Channels for Flexible Zinc–Air Batteries

Advanced Materials, Год журнала: 2024, Номер 36(29)

Опубликована: Апрель 3, 2024

Abstract Flexible zinc–air batteries are the leading candidates as next‐generation power source for flexible/wearable electronics. However, constructing safe and high‐performance solid‐state electrolytes (SSEs) with intrinsic hydroxide ion (OH − ) conduction remains a fundamental challenge. Herein, by adopting natural robust cellulose nanofibers (CNFs) building blocks, biomass SSEs penetrating water channels constructed knitting OH ‐conductive CNFs water‐retentive together via an energy‐efficient tape casting. Benefiting from abundant interconnected hydrated wires fast under nanoconfined environment, reveal high water‐uptake, impressive conductivity of 175 mS cm −1 mechanical robustness simultaneously, which overcomes commonly existed dilemma between property. Remarkably, flexible assemble deliver exceptional cycle lifespan 310 h density 126 mW −2 . The design methodology opens new avenue to batteries.

Язык: Английский

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Promoting Electrocatalytic Oxygen Reactions Using Advanced Heterostructures for Rechargeable Zinc–Air Battery Applications

ACS Nano, Год журнала: 2024, Номер 18(33), С. 21651 - 21684

Опубликована: Авг. 12, 2024

In order to facilitate electrochemical oxygen reactions in electrically rechargeable zinc-air batteries (ZABs), there is a need develop innovative approaches for efficient electrocatalysts. Due their reliability, high energy density, material abundance, and ecofriendliness, ZABs hold promise as next-generation storage conversion devices. However, the large-scale application of currently hindered by slow kinetics reduction reaction (ORR) evolution (OER). development heterostructure-based electrocatalysts has potential surpass limitations imposed intrinsic properties single material. This Account begins with an explanation configurations fundamentals electrochemistry air electrode. Then, we summarize recent progress respect variety heterostructures that exploit bifunctional electrocatalytic overview impact on ZAB performance. The range heterointerfacial engineering strategies improving ORR/OER performance includes tailoring surface chemistry, dimensionality catalysts, interfacial charge transfer, mass transport, morphology. We highlight multicomponent design take these features into account create advanced highly active catalysts. Finally, discuss challenges future perspectives this important topic aim enhance activity batteries.

Язык: Английский

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Efficient Catalysis for Zinc–Air Batteries by Multiwalled Carbon Nanotubes‐Crosslinked Carbon Dodecahedra Embedded with Co–Fe Nanoparticles

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract The design and fabrication of nanocatalysts with high accessibility sintering resistance remain significant challenges in heterogeneous electrocatalysis. Herein, a novel catalyst is introduced that combines electronic pumping alloy crystal facet engineering. At the nanoscale, pump leverages chemical potential difference to drive electron migration from one region another, separating transferring electron‐hole pairs. This mechanism accelerates reaction kinetics improves rate. interface structure optimization enables CoFe/carbon nanotube (CNT) exhibit outstanding oxygen reduction (ORR) evolution (OER) performance. Specifically, this achieves an ORR half‐wave (E₁/₂) 0.895 V, outperforming standard Pt/C RuO₂ electrocatalysts terms both specific activity stability. It also demonstrates excellent electrochemical performance for OER, overpotential only 287 mV at current density 10 mA cm⁻ 2 . Theoretical calculations reveal carefully designed facets reduce energy barrier rate‐determining steps optimizing O₂ adsorption promoting capture process. study highlights developing cost‐effective bifunctional ORR–OER electrocatalysts, offering promising strategy advancing Zn–air battery technology.

Язык: Английский

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In situ construction of MOF derived CoNC anchored on N-doped carbon xerogel sphere as efficient bifunctional ORR/OER electrocatalyst for Zn-air batteries

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 28, 2025

Electrocatalytic materials with dual functions of oxygen reduction reaction (ORR) and evolution (OER) have received increasing attention in the field zinc-air batteries (ZABs) research. In this study, bifunctional CoNC@NCXS catalysts were prepared by anchoring Co N co-doped CoNC on N-doped carbon xerogel sphere (NCXS) based spatially confined domain effect in-situ doping technique. exhibited excellent ORR/OER activity alkaline electrolytes ORR onset potential 0.99 V, half-wave (E1/2) 0.78 V at 10 mA cm−2 OER overpotential 360 mV cm−2. These catalytic activities derived from constructing composite active structures enhancing electrocatalytic efficiency. The ZAB assembled catalyst had a discharge specific capacity 710 mAh g−1 current density cm−2, which was superior to that Pt/C&RuO2 catalyst-assembled battery (667 g−1). After running for 150 h, charge efficiency decreased only 12.8%, confirmed stability catalyst. free energy diagrams showed that, has lower barriers higher than key steps. This study provides new perspective structural design highly storage conversion.

Язык: Английский

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Advances on lithium, magnesium, zinc, and iron-air batteries as energy delivery devices—a critical review

Journal of Solid State Electrochemistry, Год журнала: 2024, Номер 28(9), С. 2999 - 3025

Опубликована: Апрель 1, 2024

Язык: Английский

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Recent advances and perspectives of 1D/2D carbon materials for high-performance flexible zinc ion batteries

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(33), С. 21531 - 21552

Опубликована: Янв. 1, 2024

This review provides a summary of recent advancements in 1D/2D carbon materials (carbon nanotubes, graphene, MXenes, and fibers) for FZIBs. It mainly introduces the functions enhancing performance

Язык: Английский

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Homogenic Boundary Effect Boosted Oxygen Evolution Reaction in α/β‐NiMoO₄ for Rechargeable Aqueous Zn‐Air Battery

Advanced Energy Materials, Год журнала: 2024, Номер 14(20)

Опубликована: Апрель 9, 2024

Abstract Rechargeable Zn‐air batteries (ZAB) represent a promising avenue for sustainable energy storage, boasting high density, cost‐effectiveness, scalability, and environmental friendliness. However, the sluggish redox kinetics limited cycle life of bifunctional oxygen evolution/reduction (OER/ORR) electrocatalysts impede further practical development ZABs. In this study, homogenic boundary effect within α/β‐NiMoO 4 is introduced as superior electrocatalyst ZAB. Through in situ poikilothermic X‐ray diffraction, absorption spectroscopy, theoretical investigations, active Ni atoms exhibit more effective electron transfer at due to unveiled. Furthermore, presence vacancies lattice distortions these boundaries significantly reduces thermodynamic barrier OER mere 0.46 V. Consequently, demonstrates remarkably low overpotential 270 mV 10 mA cm −2 bottlenecked OER, along with prolonged durability (150 h) specific capacity (745 mAh g −1 5 ) This study underscores efficacy effects enhancing electrocatalytic activities, offering great promise advancement systems.

Язык: Английский

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High Energy Conversion Efficiency and Cycle Durability of Solar-Powered Self-Sustaining Light-Assisted Rechargeable Zinc–Air Batteries System

Energy storage materials, Год журнала: 2024, Номер 74, С. 103897 - 103897

Опубликована: Ноя. 7, 2024

Язык: Английский

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