Recent advanced freestanding pseudocapacitive electrodes for efficient capacitive deionization

Separation and Purification Technology, Год журнала: 2023, Номер 324, С. 124577 - 124577

Опубликована: Июль 11, 2023

Язык: Английский

---

An In Situ Electrochemical Amorphization Electrode Enables High‐Power High‐Cryogenic Capacity Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 33(38)

Опубликована: Май 25, 2023

Abstract Quick‐charge technology is of great significance for the development aqueous zinc‐ion batteries. In this study, an unreported in situ electrochemical amorphization mechanism highlighted to unlock ultrafast‐kinetics electrode. Multiple characterizations, density functional theory calculation, and molecular dynamic simulation are applied uncover storage electrodes, as well evolution structure, reaction kinetics after reconstruction. As revealed, long‐range ordered ZnV 2 O 4 crystalline can be reconstructed a short‐range Zn 0.44 V electrode, which exhibits significantly improved active sites, shortened diffusion path, enhanced zinc ions capture ability. Notably, by pairing with modified anode, it display ultrahigh rate capability (212 mAh g −1 at 50 A ) maximum power 23.2 kW kg , good cycle performance (217.2 3000 cycles 20 ). Unexpectedly, such amorphous electrodes also retain superior even cryogenic conditions. high specific capacity 251 delivered −25°C 1 84.3% retention 500 cycles. This brand‐new in‐situ expected provide new insight into understanding high‐performance

Язык: Английский

---

Metal organic framework-based cathode materials for aqueous zinc-ion batteries: Recent advances and perspectives

Energy storage materials, Год журнала: 2024, Номер 65, С. 103168 - 103168

Опубликована: Янв. 6, 2024

Язык: Английский

---

In situ Implanting 3D Carbon Network Reinforced Zinc Composite by Powder Metallurgy for Highly Reversible Zn‐based Battery Anodes

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(10)

Опубликована: Янв. 3, 2024

Aqueous Zn-based batteries have emerged as compelling candidates for grid-scale energy storage, owing to their intrinsic safety, remarkable theoretical density and cost-effectiveness. Nonetheless, the dendrite formation, side reactions, corrosion on anode overshadowed practical applications. Herein, we present an in situ grown carbon network reinforcing Zn matrix prepared by powder metallurgy. This provides uninterrupted internal electron transport pathway optimize surface electric field distribution, thereby enabling highly reversible deposition. Consequently, symmetrical cells demonstrate impressive stability, running over 880 h with a low voltage hysteresis (≈32 mV). Furthermore, this composite exhibits enhanced performance both aqueous Zn-ion Zn-air batteries. Notably, Zn//MnO

Язык: Английский

---

MOF‐derived Carbon‐Based Materials for Energy‐Related Applications

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract New carbon‐based materials (CMs) are recommended as attractively active due to their diverse nanostructures and unique electron transport pathways, demonstrating great potential for highly efficient energy storage applications, electrocatalysis, beyond. Among these newly reported CMs, metal–organic framework (MOF)‐derived CMs have achieved impressive development momentum based on high specific surface areas, tunable porosity, flexible structural‐functional integration. However, obstacles regarding the integrity of porous structures, complexity preparation processes, precise control components hinder regulation interface engineering in CMs. In this context, review systematically summarizes latest advances tailored types, processing strategies, energy‐related applications MOF‐derived focuses structure‐activity relationship metal‐free carbon, metal‐doped metallide‐doped carbon. Particularly, intrinsic correlation evolutionary behavior between synergistic interaction micro/nanostructures species with electrochemical performances emphasized. Finally, insights perspectives relevant research presented, future prospects challenges discussed, providing valuable guidance boost high‐performance electrodes a broader range application fields.

Язык: Английский

---

High Energy Density Aqueous Zinc–Chalcogen (S, Se, Te) Batteries: Recent Progress, Challenges, and Perspective

Advanced Energy Materials, Год журнала: 2023, Номер 13(44)

Опубликована: Окт. 11, 2023

Abstract Zinc‐ion batteries with chalcogen‐based (S, Se, Te) cathodes have emerged as a promising candidate for utility‐scale energy storage systems and portable electronics, which attracted rapid attention offer tremendous opportunities owing to their excellent density, on top of the advantages aqueous Zn including cost‐effectiveness, inherent safety, eco‐friendliness. Here, comprehensive overview basic mechanism zinc–chalcogen great intrinsic issues is provided. More detailed recent progress summarized existing challenges strategies are provided well. First, four specific types presented, including: zinc–sulfur, zinc–selenium, zinc–selenium sulfide, zinc–tellurium batteries. Second, remaining within in material preparation, physicochemical properties, battery performance discussed. Meanwhile, series constructive comprehensively put forward optimizing electrochemical performance. Finally, future research perspectives proposed exploration innovation next‐generation green zinc applications.

Язык: Английский

---

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

---

Metal-Organic Framework-Based Materials in Aqueous Zinc-Ion Batteries

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(7), С. 6041 - 6041

Опубликована: Март 23, 2023

Aqueous zinc-ion batteries (AZIBs) are promising for large-scale energy storage systems due to their high safety, large capacity, cost-effectiveness, and environmental friendliness. However, commercialization is currently hindered by several challenging issues, including cathode degradation zinc dendrite growth. Recently, metal-organic frameworks (MOFs) derivatives have gained significant attention widely used in AZIBs highly porous structures, specific surface area, ability design Zn2+ shuttle. Based on preceding contributions, this review aims generalize two principles MOF-based materials AZIBs: preparation anode protection. For preparation, we mainly introduce novel electrode such as pure MOFs, carbon materials, metal oxides, compounds, focusing the analysis of capacity AZIBs. protection, systematically analyze 3D Zn architecture, solid electrolyte interfaces, separators, solid-state electrolytes, highlighting improvement cyclic stability anodes. Finally, propose future development Our work can give some clues raising practical application level aqueous ZIBs.

Язык: Английский

---

ZnSe/SnSe Heterostructure Incorporated with Selenium/Nitrogen Co‐Doped Carbon Nanofiber Skeleton for Sodium‐Ion Batteries

Small, Год журнала: 2024, Номер 20(22)

Опубликована: Янв. 2, 2024

Abstract Effective strategies toward building exquisite nanostructures with enhanced structural integrity and improved reaction kinetics will carry forward the practical application of alloy‐based materials as anodes in batteries. Herein, a free‐standing 3D carbon nanofiber (CNF) skeleton incorporated heterostructured binary metal selenides (ZnSe/SnSe) nanoboxes is developed for Na‐ion storage anodes, which can facilitate Na + ion migration, improve structure integrity, enhance electrochemical kinetics. During carbonization selenization process, selenium/nitrogen (Se/N) co‐doped into CNF skeleton, conductivity wettability matrices. More importantly, ZnSe/SnSe heterostructures Se/N co‐doping CNFs have synergistic interfacial coupling effect built‐in electric field heterogeneous interfaces hetero‐boundaries well between matrix selenide heterostructures, enable fast ion/electron transport accelerate surface/internal storage. The ZnSe/SnSe@Se,N‐CNFs exhibit superior performance than comparative ZnSe/SnSe, ZnSe SnSe powders, deliver an excellent rate (882.0, 773.6, 695.7, 634.2, 559.0 mAh g −1 at current rates 0.1, 0.2, 0.5, 1, 2 A ) long‐life cycling stability 587.5 3500 cycles .

Язык: Английский

---

Enhancing the electrochemical activation kinetics of V2O3 for high-performance aqueous zinc-ion battery cathode materials

Chemical Engineering Journal, Год журнала: 2024, Номер 490, С. 151535 - 151535

Опубликована: Апрель 22, 2024

Язык: Английский

---