Versatile MXenes for Aqueous Zinc Batteries

Advanced Science, Journal Year: 2023, Volume and Issue: 11(8)

Published: Nov. 20, 2023

Abstract Aqueous zinc‐ion batteries (AZIBs) are gaining popularity for their cost‐effectiveness, safety, and utilization of abundant resources. MXenes, which possess outstanding conductivity, controllable surface chemistry, structural adaptability, widely recognized as a highly versatile platform AZIBs. MXenes offer unique set functions AZIBs, yet significance has not been systematically summarized. This review article provides an up‐to‐date overview MXenes‐based electrode materials with focus on the in these materials. The discussion starts derivatives cathode side, where they serve 2D conductive substrate, 3D framework, flexible support, coating layer. can act both active material precursor to cathode. On anode include host, zinc metal protection, electrolyte additive, separator modification. also highlights technical challenges key hurdles that currently face

Language: Английский

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Pathways for MXenes in Solving the Issues of Zinc‐Ion Batteries: Achievements and Perspectives

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: March 11, 2024

Abstract Zinc‐ion batteries (ZIBs) have become a global research hotspot in recent years due to their eco‐friendliness, safety, abundant resources, and low cost. However, some significant challenges seriously affect overall performance, thus hindering further development practical applications. Recently, multifunctional adjustable 2D carbides nitrides (MXenes) are extensively used for the modification of ZIBs, fruitful achievements achieved. In order make systematic understanding these studies, it is highly desirable provide an overview MXenes based on methods action mechanisms. this review, basic introduction ZIBs presented main approaches solving issues discussed detail, including activation composite strategies cathode, interface engineering, structural optimization, zinc metal‐free anode strategy anode, solid‐state electrolyte, functionalized separator. Importantly, functions related mechanisms various components analyzed depth. Finally, pathways summarized, future directions prospected.

Language: Английский

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Co-intercalation strategy for simultaneously boosting two-electron conversion and bulk stabilization of Mn-based cathodes in aqueous zinc-ion batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(6), P. 2287 - 2297

Published: Jan. 1, 2024

The proposed cathode, achieved by a cost-effective and scalable coating process, highlights the potential of simultaneously promoting surface reactivity while ensuring bulk stability for efficient high mass loading cathodes in zinc-ion batteries.

Language: Английский

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Cutting-edge advancements in MXene-derived materials: Revolutionary electrocatalysts for hydrogen evolution and high-performance energy storage

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 506, P. 215722 - 215722

Published: Feb. 16, 2024

Language: Английский

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Hydroxylated Manganese Oxide Cathode for Stable Aqueous Zinc‐Ion Batteries

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

Published: May 1, 2024

Abstract Manganese (Mn) oxides are promising cathode materials for rechargeable aqueous Zn‐ion batteries. However, the Mn dissolution in weakly acidic electrolytes always hinders development of better Zn–Mn Herein, a hydroxylated manganese oxide material (H‐MnO 2 ) is fabricated using an electrochemical method stable batteries without relying on 2+ electrolyte additives. The partial hydroxylation leads to charge redistribution material, changing reaction thermodynamics and kinetics. Theoretical simulation suggests that promotes both Zn adsorption diffusion kinetics surface H‐MnO but weakens interaction between H + electrode. Therefore, ions can be more reactive with than ions. Experimental results show insertion mechanism dominates storage process 2, ‐induced effectively alleviated. Importantly, exhibits good cycling stability 95% capacity retention over 5000 cycles at current density 3.8 A g −1 ZnSO 4 electrolyte, outperforming state‐of‐the‐art batteries, even those findings provide new insights designing cathodes

Language: Английский

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Oxygen Vacancy-Rich Cobalt-Doped MnO₂ Nanorods for Zn Ion Batteries

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Improving electrical conductivity and increasing the active site are important directions for improving technology of manganese-based cathode materials zinc ion batteries (ZIBs). In this paper, cobalt-doped oxygen-vacancy coupled MnO2 nanorods (Vo-CMO) were prepared by defect engineering an doping strategy as rechargeable ZIBs. Oxygen vacancies can increase density material provide more migration paths ions, thereby electrochemical activity specific capacity. The introduction cobalt adjust electronic structure manganese oxide, change Fermi level material, promote generation transmission charge carriers, transfer rate material. synergistic effect among them improve diffusion kinetics capacity cycle stability Vo-CMO has better Zn2+ storage 295.6 mAh·g–1 at 0.1 A·g–1. reaction mechanism was H+/Zn2+ coinsertion through galvanostatic current intermittent titration (GITT) ex situ experiments. addition, assembled flexible quasi-solid ZIB. oxygen vacancy a new way to develop water-based

Language: Английский

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Long-life vanadium oxide cathode for zinc battery enabled by polypyrrole intercalation and concentrated electrolyte

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 143971 - 143971

Published: June 17, 2023

Language: Английский

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Adjusting Zn2+ diffusion kinetics and storage capability of MnOOH nanofibers for high-performance cathode of aqueous zinc-ion batteries

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145046 - 145046

Published: July 26, 2023

Language: Английский

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Synthesis and applications of MXene-based composites: a review

Nanotechnology, Journal Year: 2023, Volume and Issue: 34(26), P. 262001 - 262001

Published: March 27, 2023

Recently, there has been considerable interest in a new family of transition metal carbides, carbonitrides, and nitrides referred to as MXenes (Ti3C2Tx) due the variety their elemental compositions surface terminations that exhibit many fascinating physical chemical properties. As result easy formability, may be combined with other materials, such polymers, oxides, carbon nanotubes, which can used tune properties for various applications. is widely known, MXene-based composites have gained prominence electrode materials energy storage field. In addition high conductivity, reducibility, biocompatibility, they also demonstrated outstanding potential applications related environment, including electro/photocatalytic water splitting, photocatalytic dioxide reduction, purification, sensors. This review discusses composite anode while electrochemical performance anodes Li-based batteries (LiBs) discussed key findings, operating processes, factors influencing performance.

Language: Английский

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Spontaneously dissolved MnO: A better cathode material for rechargeable aqueous zinc-manganese batteries

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145490 - 145490

Published: Aug. 15, 2023

Language: Английский

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