MXene chemistry, electrochemistry and energy storage applications

Nature Reviews Chemistry, Journal Year: 2022, Volume and Issue: 6(6), P. 389 - 404

Published: April 20, 2022

Language: Английский

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Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: Jan. 3, 2022

The rapid advance of mild aqueous zinc-ion batteries (ZIBs) is driving the development energy storage system market. But thorny issues Zn anodes, mainly including dendrite growth, hydrogen evolution, and corrosion, severely reduce performance ZIBs. To commercialize ZIBs, researchers must overcome formidable challenges. Research about ZIBs still developing. Various technical scientific obstacles to designing anodes with high stripping efficiency long cycling life have not been resolved. Moreover, a complex issue determined by various parameters, most which are often ignored, failing achieve maximum cell. This review proposes comprehensive overview existing anode corresponding strategies, frontiers, trends deeply comprehend essence inner connection degradation mechanism performance. First, formation their influence on analyzed. Furthermore, strategies for constructing stable summarized discussed in detail from multiple perspectives. These divided into interface modification, structural anode, alloying intercalation liquid electrolyte, non-liquid separator design, other strategies. Finally, research directions prospects put forward anodes. contribution highlights latest developments provides new insights advanced future research.

Language: Английский

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Status and Prospects of MXene‐Based Lithium–Sulfur Batteries

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(21)

Published: March 5, 2021

Abstract Lithium–sulfur (Li–S) batteries with a theoretical energy density of 2567 Wh kg −1 are very promising next‐generation storage systems, but suffer from the insulativity sulfur and Li 2 S, shuttle effect due to dissolution migration polysulfides, lithium dendrite issue. MXenes, family 2D transition metal carbides/nitrides, which have metallic conductivity, structural variety, strong chemical adsorption ability effective catalytic for fast kinetics, inducing uniform growth Li, exhibit potential high‐performance Li–S batteries. In this review, recent progress achievements MXene‐based summarized, including use MXenes in cathode, interlayer between cathode separator, anode. The architecture construction modification as well hybridization other materials demonstrated. enhancement on electrochemical performance related mechanisms composites discussed. Finally, challenges perspectives battery application also given.

Language: Английский

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Nitrogen‐Doped Carbon Fibers Embedded with Zincophilic Cu Nanoboxes for Stable Zn‐Metal Anodes

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(18)

Published: March 5, 2022

The practical application of Zn-metal anodes (ZMAs) is mainly impeded by the limited lifespan and low Coulombic efficiency (CE) resulting from Zn dendrite growth side reactions. Herein, a 3D multifunctional host consisting N-doped carbon fibers embedded with Cu nanoboxes (denoted as NBs@NCFs) rationally designed developed for stable ZMAs. macroporous configuration hollow structure can lower local current density alleviate large volume change during repeated cycling processes. Furthermore, zincophilic in-situ-formed Cu-Zn alloy act homogeneous nucleation sites to minimize overpotential, further guiding uniform dense deposition. As result, this NBs@NCFs exhibits high CE plating/stripping 1000 cycles. NBs@NCFs-Zn electrode shows voltage hysteresis prolonged life (450 h) dendrite-free behaviors. proof-of-concept demonstration, Zn-ion full cell fabricated based on anode, which demonstrates decent rate capability improved performance.

Language: Английский

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Toward a Practical Zn Powder Anode: Ti₃C₂Tx MXene as a Lattice-Match Electrons/Ions Redistributor

ACS Nano, Journal Year: 2021, Volume and Issue: 15(9), P. 14631 - 14642

Published: Sept. 3, 2021

The renaissance of aqueous Zn ion batteries has drawn intense attention to metal anode issues, including dendrites growth, dead Zn, low efficiency, and other parasitic reactions. However, against the widely used 2D foil, in fact, powder is a more practical choice for Zn-based industrial applications, but related solutions are rarely investigated. Herein, we focus on disclose its unknown failure mechanism different from foils. By utilization flexible conductive Ti3C2Tx MXene flakes with hexagonal close-packed lattice as electrons ions redistributor, stable highly reversible without dendrite growth polarization constructed. Low mismatch (∼10%) enables coherent heterogeneous interface between (0002) plane deposited MXene. Thus, Zn2+ induced undergo rapid uniform nucleation sustained stripping/plating energy barriers via internally bridged shuttle channels. Paired cyano group iron hexacyanoferrate (FeHCF) cathode, FeHCF//MXene@Zn full battery delivers superior cycle durability rate capability, whose service life CE near 100% touches 850% bare counterparts. proposed redistributor strategy concerning high-speed electrons/ions channel, low-barrier interface, expected be applied alkali anodes.

Language: Английский

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BiOBr/MXene/gC3N4 Z-scheme heterostructure photocatalysts mediated by oxygen vacancies and MXene quantum dots for tetracycline degradation: Process, mechanism and toxicity analysis

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 323, P. 122150 - 122150

Published: Nov. 8, 2022

Language: Английский

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Heterometallic Seed‐Mediated Zinc Deposition on Inkjet Printed Silver Nanoparticles Toward Foldable and Heat‐Resistant Zinc Batteries

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(24)

Published: April 8, 2021

Abstract To achieve high performed zinc metal batteries, it is imperative to address the issues of dendrite growth and side‐reactions occurring at Zn anode, particularly when batteries are operated current densities temperature. Herein, a flexible dendrite‐free anode (AgNPs@CC/Zn), which prepared by inkjet printing silver nanoparticles on 3D carbon matrix, reported. Experimental observations DFT calculation reveal that Ag can work as heterometallic seeds for deposition, thus simultaneously improve zincophilicity thermal conductivity matrix. This not only lowers nucleation overpotential guides uniform but also promotes reversible stripping/plating via AgZn alloying/de‐alloying reactions. As result, AgNPs@CC/Zn presents low voltage hysteresis 80 mV superior cycling over 480 h density 10 mA cm −2 . The enable full cells with exceptional cyclic stability enhanced high‐temperature endurance. Furthermore, foldable pouch cell using exhibits capacity retention regardless different deformation status. demonstrates promising potential technology in developing heat‐resistant batteries.

Language: Английский

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Different surface modification methods and coating materials of zinc metal anode

Journal of Energy Chemistry, Journal Year: 2021, Volume and Issue: 66, P. 397 - 412

Published: Aug. 16, 2021

Language: Английский

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Flexible and stable 3D lithium metal anodes based on self-standing MXene/COF frameworks for high-performance lithium-sulfur batteries

Nano Research, Journal Year: 2021, Volume and Issue: 14(10), P. 3576 - 3584

Published: April 6, 2021

Language: Английский

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In Situ Anchoring Ultrafine ZnS Nanodots on 2D MXene Nanosheets for Accelerating Polysulfide Redox and Regulating Li Plating

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(32)

Published: May 11, 2023

Lithium-sulfur (Li-S) battery is a promising energy storage system due to its cost effectiveness and high density. However, formation of Li dendrites from metal anode shuttle effect lithium polysulfides (LiPSs) S cathode impede practical application. Herein, ultrafine ZnS nanodots are uniformly grown on 2D MXene nanosheets by low-temperature (60 °C) hydrothermal method for the first time. Distinctively, nanodot-decorated (ZnS/MXene) can be easily filtered flexible freestanding film in several minutes. The ZnS/MXene used as current collector Li-metal promote uniform deposition superior lithiophilicity nanodots. powders obtained freeze drying separator decorator address LiPSs their excellent adsorbability. Theoretical calculation proves that existence obviously improve adsorption ability with Li+ LiPSs. Li-S full cells composite modified exhibit remarkable rate cycling performance. Other transition sulfides (CdS, CuS, etc.) also strategy.

Language: Английский

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