The Emergence of 2D MXenes Based Zn‐Ion Batteries: Recent Development and Prospects

Small, Journal Year: 2022, Volume and Issue: 18(26)

Published: May 27, 2022

Abstract Rechargeable zinc‐ion batteries (ZIBs) with exceptional theoretical capacity have garnered significant interest in large‐scale electrochemical energy storage devices due to their low cost, abundant material, inherent safety, high specific energy, and ecofriendly nature. Metal carbides/nitrides, known as MXenes, emerged a large family of 2D transition metal carbides or carbonitrides excellent properties, e.g., electrical conductivity, surface functional groups (e.g., F, O, OH), barriers for the diffusion electrolyte ions wide interlayer spaces. After decade effort, development has been achieved synthesis, applications MXenes. Thus, it opened up various exciting opportunities construct advanced MXene‐based nanostructures ZIBs power. Herein, this review summarizes advances across multiple synthesis routes, related morphological structural characteristics, chemistries MXenes ZIBs. The recent electrodes is introduced, electrolytes are elucidated detail. rocking chair ZIBs, strategies enhance performance cathodes, suppress dendrites anodes, flexible pointed out. A rational design modification well production composites oxides exhibits promise solving issues enhancing Finally, present challenges future prospects discussed.

Language: Английский

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Recent Advances and Perspectives of Lewis Acidic Etching Route: An Emerging Preparation Strategy for MXenes

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 15, 2023

Abstract Since the discovery in 2011, MXenes have become rising star field of two-dimensional materials. Benefiting from metallic-level conductivity, large and adjustable gallery spacing, low ion diffusion barrier, rich surface chemistry, superior mechanical strength, exhibit great application prospects energy storage conversion, sensors, optoelectronics, electromagnetic interference shielding biomedicine. Nevertheless, two issues seriously deteriorate further development MXenes. One is high experimental risk common preparation methods such as HF etching, other difficulty obtaining with controllable groups. Recently, Lewis acidic a brand-new strategy for MXenes, has attracted intensive attention due to its safety ability endow uniform terminations. However, comprehensive review etching method not been reported yet. Herein, we first introduce following four aspects: mechanism, terminations regulation, in-situ formed metals delamination multi-layered Further, applications MXene-based hybrids obtained by route sensors microwave absorption are carefully summarized. Finally, some challenges opportunities also presented.

Language: Английский

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Cation Defect‐Engineered Boost Fast Kinetics of Two‐Dimensional Topological Bi₂Se₃ Cathode for High‐Performance Aqueous Zn‐Ion Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(51)

Published: Oct. 26, 2023

Abstract The challenge with aqueous zinc‐ion batteries (ZIBs) lies in finding suitable cathode materials that can provide high capacity and fast kinetics. Herein, two‐dimensional topological Bi 2 Se 3 acceptable Bi‐vacancies for ZIBs (Cu‐Bi 2−x ) is constructed through one‐step hydrothermal process accompanied by Cu heteroatom introduction. cation‐deficient Cu‐Bi nanosheets (≈4 nm) bring improved conductivity from large surface metal states contribution enhanced bulk conductivity. Besides, the increased adsorption energy reduced Zn 2+ migration barrier demonstrated density‐functional theory (DFT) calculations illustrate decreased Coulombic ion‐lattice repulsion of . Therefore, exhibits both ion electron transport capability, leading to more carrier reversible insertion proved situ synchrotron X‐ray diffraction (SXRD). These features endow sufficient specific (320 mA h g −1 at 0.1 A ), high‐rate performance (97 10 reliable cycling stability (70 after 4000 cycles). Furthermore, quasi‐solid‐state fiber‐shaped employing demonstrate respectable superior flexibility even under mass loading. This work implements a conceptually innovative strategy represented cation defect design insulator achieving high‐performance battery electrochemistry.

Language: Английский

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MXene‐Based Current Collectors for Advanced Rechargeable Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(2)

Published: Aug. 24, 2023

Abstract As an indispensable component of rechargeable batteries, the current collector plays a crucial role in supporting electrode materials and collecting accumulated electrical energy. However, some key issues, like uneven resources, high weight percentage, electrolytic corrosion, high‐voltage instability, cannot meet growing need for batteries. In recent years, MXene‐based collectors have achieved considerable achievements due to its unique structure, large surface area, conductivity. The related research has increased significantly. Nonetheless, comprehensive review this area is seldom. Herein applications progress MXene are systematically summarized discussed. Meanwhile, challenges future directions presented.

Language: Английский

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Interlayer Injection of Low‐Valence Zn Atoms to Activate MXene‐Based Micro‐Redox Capacitors With Battery‐Type Voltage Plateaus

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(43)

Published: June 21, 2023

Abstract Insufficient and unstable energy output is the bottleneck issue radically restricting application of micro‐supercapacitors (MSCs). Herein, an interlayer atom injection strategy that can anchor low‐valence Zn atoms (Zn δ + , 0 < <2) on O‐terminals Ti 3 C 2 T x (MXene) flakes within MXene/silver‐nanowires hybrid cathode symmetric MSCs first presented. Combining polyacrylamide/ZnCl hydrogel electrolyte rich in Cl − 2+ ions, matched /Zn (−0.76 V vs SHE) Ag/AgCl (0.23 SHE), redox couples between symmetrical electrodes are activated to offer faradaic charge storage beside ions‐intercalation involved pseudocapacitance. Thus, a battery‐type voltage plateau (≈0.9 V) appears discharge curve fabricated pseudo‐symmetric micro‐redox capacitor, simultaneously achieving density enhancement (117 µWh cm −2 at 0.5 mA ) substantially improved power stability (46% from region) relative before activation (98 without platform). The work provides fire‐new overcome performance bottlenecks confronting conventional MSCs.

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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An acetate electrolyte for enhanced pseudocapacitve capacity in aqueous ammonium ion batteries

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 2, 2024

Abstract Ammonium ion batteries are promising for energy storage with the merits of low cost, inherent security, environmental friendliness, and excellent electrochemical properties. Unfortunately, lack anode materials restricts their development. Herein, we utilized density functional theory calculations to explore V 2 CT x MXene as a working potential. demonstrates pseudocapacitive behavior ammonium storage, delivering high specific capacity 115.9 mAh g −1 at 1 A retention 100% after 5000 cycles 5 . In-situ quartz crystal microbalance measurement verifies two-step process this unique in acetate electrolyte. Theoretical simulation reveals reversible electron transfer reactions [NH 4 + (HAc) 3 ]···O coordination bonds, resulting superior capacity. The generality enhancement effect is also confirmed MoS -based ammonium-ion battery system. These findings open new door realizing on through enhancement, breaking limitations both Faradaic non-Faradaic storage.

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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Metal-organic framework/mxene heterostructure and its derivatives as electrode materials for rechargeable Zn-based batteries: Design strategies and perspectives

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149624 - 149624

Published: Feb. 15, 2024

Language: Английский

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V‐MXenes for Energy Storage/Conversion Applications

ChemSusChem, Journal Year: 2024, Volume and Issue: 17(15)

Published: March 12, 2024

MXenes, a two-dimensional (2D) material, exhibit excellent optical, electrical, chemical, mechanical, and electrochemical properties. Titanium-based MXene (Ti-MXene) has been extensively studied serves as the foundation for 2D MXenes. However, other transition metals possess potential to offer properties in various applications. This comprehensive review aims provide an overview of properties, challenges, key findings, applications less-explored vanadium-based MXenes (V-MXenes) their composites. The current trends V-MXene composites energy storage conversion have thoroughly summarized. Overall, this offers valuable insights, identifies opportunities, provides suggestions future advancements storage/conversion

Language: Английский

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