Dynamic heterostructure design of MnO₂ for high-performance aqueous zinc-ion batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(10), С. 3629 - 3640

Опубликована: Янв. 1, 2024

Bi 12.53 Mn 0.47 O 19.85 (BiO), acting as a metal ion reservoir, can supply 3+ to R-MnO 2 in situ form 4 10 (BMO) during cycling, resulting dynamic transformation from the BiO/MnO heterostructure BMO/MnO heterostructure.

Язык: Английский

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MXene‐mediated Interfacial Growth of 2D‐2D Heterostructured Nanomaterials as Cathodes for Zn‐based Aqueous Batteries

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(18)

Опубликована: Фев. 21, 2024

In this study, we introduce a novel approach for synthesizing two-dimensional (2D) MXene heterostructures featuring sandwiched and cross-linked network structure. This method addresses the common issue of activity degradation in 2D nanomaterials caused by inevitable aggregation. By utilizing distinct surface characteristics MXene, successfully induced growth various on substrates. strategy effectively mitigates self-stacking defects augments exposure areas. particular, obtained 2D-2D MXene@NiCo-layered double hydroxide (MH-NiCo) exhibit enhanced structural stability, improved chemical reversibility, heightened charge transfer efficiency, outperforming pure NiCo LDH. The aqueous MH-Ni

Язык: Английский

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

Advanced Functional Materials, Год журнала: 2024, Номер 34(28)

Опубликована: Март 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.

Язык: Английский

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2D Conductive Metal–Organic Framework with Anthraquinone Built‐In Active Sites as Cathode for Aqueous Zinc Ion Battery

Advanced Functional Materials, Год журнала: 2024, Номер 34(21)

Опубликована: Янв. 30, 2024

Abstract 2D conductive metal–organic frameworks (2D c ‐MOFs) as emerging graphene‐like crystalline materials have become a promising platform for energy storage. However, their capacity is largely constrained by the limited number of electroactive sites. Integrating multiple redox‐active moieties into ‐MOF skeletons an efficient strategy toward high‐performance battery cathodes. Herein, tailoring anthraquinone‐based multitopic catechol ligand, novel quinone‐containing copper‐catecholate MOF (Cu‐TBPQ MOF) successfully developed. The Cu‐TBPQ exhibits abundant porosity, excellent conductivity, and These characteristics make it ideal candidate cathode material zinc ion batteries. Notably, demonstrates impressive reversible specific 371.2 mAh g −1 at current density 50 mA . Furthermore, outstanding rate capability long‐term durability, retaining 120.3 high 2.0 A even after 500 charge–discharge cycles. successful enrichment sites in work opens up new avenues rational design electrochemically active ‐MOFs, enhancing potential advanced storage applications.

Язык: Английский

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A Review of Anode Materials for Dual-Ion Batteries

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Июль 24, 2024

Distinct from "rocking-chair" lithium-ion batteries (LIBs), the unique anionic intercalation chemistry on cathode side of dual-ion (DIBs) endows them with intrinsic advantages low cost, high voltage, and eco-friendly, which is attracting widespread attention, expected to achieve next generation large-scale energy storage applications. Although electrochemical reactions anode DIBs are similar that LIBs, in fact, match rapid insertion kinetics anions consider compatibility electrolyte system also serves as an active material, materials play a very important role, there urgent demand for rational structural design performance optimization. A review summarization previous studies will facilitate exploration optimization future. Here, we summarize development process working mechanism exhaustively categorize latest research their applications different battery systems. Moreover, design, reaction briefly discussed. Finally, fundamental challenges, potential strategies perspectives put forward. It hoped this could shed some light researchers explore more superior advanced systems further promote DIBs.

Язык: Английский

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Insights on advanced g‐C₃N₄ in energy storage: Applications, challenges, and future

Carbon Energy, Год журнала: 2024, Номер 6(4)

Опубликована: Фев. 5, 2024

Abstract Graphitic carbon nitride (g‐C 3 N 4 ) is a highly recognized two‐dimensional semiconductor material known for its exceptional chemical and physical stability, environmental friendliness, pollution‐free advantages. These remarkable properties have sparked extensive research in the field of energy storage. This review paper presents latest advances utilization g‐C various storage technologies, including lithium‐ion batteries, lithium‐sulfur sodium‐ion potassium‐ion supercapacitors. One key strengths lies simple preparation process along with ease optimizing structure. It possesses abundant amino Lewis basic groups, as well high density nitrogen, enabling efficient charge transfer electrolyte solution penetration. Moreover, graphite‐like layered structure presence large π bonds contribute to versatility preparing multifunctional materials different dimensions, element group doping, conjugated systems. characteristics open up possibilities expanding application devices. article comprehensively reviews progress on highlights potential future applications this field. By exploring advantages unique features , provides valuable insights into harnessing full applications.

Язык: Английский

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Prussian Blue Analogues “Dressed” in MXene Nanosheets Tightly for High Performance Lithium‐Ion Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract MXenes, have been considered as a new generation anode material in lithium‐ion batteries for lower diffusion barriers and superior conductivity. Unfortunately, their structures are prone to aggregation stacking, hindering further shuttle of lithium ions electrons, resulting discharge capacity. Therefore, the introduction interlayer spacers preparation MXene‐based hybrids has attracted much attention. Introducing Prubssian blue analogues (PBAs) spacer combine with MXene nanosheets can not only preserve high conductivity inhibit volume expansion structural degradation PBA component, but also inherit characteristics large specific surface area porosity PBAs. By intelligent regulating size sheets, Co‐PBA@MXene common sandwich‐like core‐shell‐like successfully obtained. Furthermore, Co@M( x : y ) prepared by intelligently adjusting shell thickness through controlling mass ratio between Co‐PBA MXene. Among them, Co@M(5:2) exhibits an excellent capacity (603 mA h g −1 at 0.2 A after 100 cycles) long‐term cycling stability due protective conductive properties provided multi‐redox pairs rich from core.

Язык: Английский

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Mott–Schottky Heterojunction Modulating Iron–Vanadium Oxide for High-Performance Aqueous Zinc Battery Cathodes

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Vanadium-based oxides have garnered significant attention for aqueous zinc batteries (AZBs), whereas sluggish Zn

Язык: Английский

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Scalable 2D/2D Assembly of Ultrathin MOF/MXene Sheets for Stretchable and Bendable Energy Storage Devices

Advanced Functional Materials, Год журнала: 2023, Номер 34(11)

Опубликована: Дек. 6, 2023

Abstract Scalable assembly of two dimensional (2D) lamellar nanomaterials for deformable films has potential in wearable energy storage devices, but overcoming the trade‐off mechanical and properties is a challenge. Here, blade‐coating strategy reported to develop highly stretchable bendable metal‐organic frameworks/large‐sized Ti 3 C 2 T x MXene (MOF/LMX) composite on pre‐stretched elastomer substrates. The LMX sheets serve as conductive scaffolds loading small‐sized ultrathin MOF (SUMOFs), resulting an improved tensile strength (≈97 MPa) films, which guarantees their structural integrity when forming wavy structure relaxed substrate. In addition, SUMOFs incorporated in‐between layers not only expose active redox sites by mitigating intrinsic self‐restacking also accelerate electron transfer reaction process revealed through density functional theory calculations. As result, deliver high electrical conductivity (3244 S cm −1 ) capability (1238 F g ). When assembled into asymmetric supercapacitor device, it exhibits stable performances under different bending stretching states. Thus, development conducting MOF‐based with mechanical, electrical, enables commercial applications electronics.

Язык: Английский

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In Situ Electrochemical Tuning of MIL‐88B(V)@rGO into Amorphous V₂O₅@rGO as Cathode for High‐Performance Aqueous Zinc‐Ion Battery

Advanced Functional Materials, Год журнала: 2023, Номер 34(2)

Опубликована: Сен. 26, 2023

Abstract The design and fabrication of advanced cathode materials with excellent electrochemical properties to match the Zn anode is crucial for development aqueous zinc‐ion batteries (ZIBs). Herein synthesis MIL‐88B(V)@rGO composites reported, in which MIL‐88B(V) nanorods are anchored on reduced graphene oxide (rGO) sheets, as ZIBs, where induces formation small‐size instead typical prism morphology. During initial charge/discharge process, undergoes an situ irreversible transformation from amorphous V 2 O 5 that acts active site subsequent 2+ insertion/extraction. hierarchical structure provide abundant channels sites diffusion adsorption. density functional theory calculation reveals rGO sheets have two functions, i.e., improve conductivity reduce migration energy barrier. Consequently, exhibits ultrahigh reversible capacity 479.6 mAh g −1 at 50 mA good rate performance 263.6 5000 , superior metal–organic frameworks (MOFs) cathodes reported literature. This work may shed a new light MOFs‐based ZIBs.

Язык: Английский

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