Spatial and anchoring effects of zirconia-doped 3D scaffolds for stable zinc anodes

Chemical Engineering Journal, Год журнала: 2025, Номер 505, С. 159397 - 159397

Опубликована: Янв. 10, 2025

Язык: Английский

---

Emerging Issues and Opportunities of 2D Layered Transition Metal Dichalcogenide Architectures for Supercapacitors

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Two-dimensional layered transition metal dichalcogenides (2D TMDs) have emerged as promising candidates for supercapacitor (SCs) owing to their tunable electronic properties, structures, and effective ion intercalation capabilities. Despite these advantages, challenges such low electrical conductivity, the interlayer restacking, oxidation structural collapse hinder practical implementation. This review provides a comprehensive overview of recent advances in development 2D TMDs SCs. We begin by outlining charge storage mechanisms design principles SCs, followed an in-depth discussion synthesis methods associated fabricating TMD architectures. The subsequent sections explore crystal structures reaction mechanisms, illustrating electrochemical potential Furthermore, we highlight material modification strategies, including nanostructuring, defect engineering, phase control, surface/interface modulation, which been proposed overcome existing challenges. Finally, address critical issues emerging opportunities inspire SC technologies.

Язык: Английский

---

Enhancing Organic Cathodes of Aqueous Zinc-Ion Batteries via Nitro Group Modification

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Nitro groups' high redox activity and electron-withdrawing capabilities increased the specific capacity voltage plateaus. Additionally, in situ produced azo bridges conjugation of PTO hence improved cycle stability.

Язык: Английский

---

Bimetallic Ion Intercalation Optimized the Performance of Hydrated Vanadate Cathodes for Aqueous Zinc Ion Batteries

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 12, 2025

Aqueous zinc ion batteries are gaining prominent attention due to their potentially high safety, low cost, and volumetric capacity. However, disparities still exist in specific capacity kinetic performances within the electrode materials of batteries. Herein, electrochemical properties layered vanadium oxide (VOH) nanorods adopting Sr2+ La3+ as pillars were investigated systematically. It was shown that (1La,1Sr)-VOH possessed a around 345.8 mAh g–1 at current density 1 A g–1, which remarkably higher than VOH 1Sr-VOH (208.34 g–1). Characterizations demonstrated benefiting from role pillars, enlarged layer spacing enhanced storage kinetics during reactions. The tested diffusion coefficient 1.16 × 10–11 cm2 s–1, much (7.31 10–12 s–1), demonstrating smooth charge transfer process as-synthesized (1La,1Sr)-VOH.

Язык: Английский

---

F-Doped Enhanced Dual Reduction Center Metal–Organic Framework for Aqueous Aluminum Ion Batteries

ACS Materials Letters, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Язык: Английский

---

Revealing the miscibility chemistry of ionic liquids in water-in-salt electrolytes toward high-voltage and high-temperature aqueous potassium-ion supercapacitors

Science Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

---

A High Effective Composite Catalyst Nc@Ceo2-Fe Based on the Synergistic Effect

Опубликована: Янв. 1, 2025

Язык: Английский

---

Innovative synergistic control of electric fields and Zn²⁺ dynamics for revolutionizing zinc metal battery stability

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Aqueous zinc-ion batteries (ZIBs) are emerging as promising next-generation energy storage systems due to their inherent safety, environmental sustainability, and cost-effectiveness. However, widespread application is hindered by challenges such dendritic Zn growth, hydrogen evolution, corrosion-induced passivation, which compromise performance scalability. To overcome these obstacles, we developed a novel dual-interface modified zinc anode integrating fluoride (ZnF2)-silicon (Si) interface using fluorine-doped silicon nanoparticles encapsulated within hollow mesoporous carbon nanospheres (F-Si@HMCS). The in situ formation of ZnF2 layer provides high electrochemical stability, effectively suppressing dendrite formation, mitigating corrosion, reducing side reactions with the electrolyte. silica further facilitates uniform electrodeposition forming Si-O-Zn bonds, regulate electric field distribution lower nucleation barriers. Additionally, structure efficient ion transport acts buffer against volume changes during cycling. Consequently, F-Si@HMCS@Zn electrode exhibits long lifespan over 2500 h at 5 mA cm-2 capacity 0.5 symmetrical cell test. When coupled α-MnO2 cathodes, resulting ZIBs exhibit outstanding stable cycle life 2000 cycles 2 A g-1.

Язык: Английский

---

Lean‐Water Hydrogel with Multipolar Sites for Flexible and High‐Performance Aqueous Aluminum Ion Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

Rechargeable aqueous aluminum ion batteries (AAIBs) offer a promising avenue for achieving safe, high-energy, and low-cost large-scale energy storage applications. However, the practical development of AAIBs is hindered by competitive reduction reactions in solution, which lead to insufficient (Al) deposition severe hydrogen evolution reaction (HRE). In this work, an inorganic/organic hybrid hydrogel with stable silicon-based network multiple polar sites successfully fabricated via situ sol-gel polymerization method. The preferential formation bonds between functional groups water molecules effectively reduces thermodynamic reactivity water. Furthermore, X-ray photoelectron spectroscopy (XPS) time flight secondary mass spectrometry (TOF-SIMS) analyses confirm stable, inorganic-rich solid electrolyte interface (SEI) layer, kinetically suppresses undesirable side reactions. This exhibits high ionic conductivity 2.9 × 10-3 S cm-1 at 25 °C, even under lean-water conditions. As result, Al|hydrogel|potassium nickel hexacyanoferrate (KNHCF) full cells demonstrate excellent cycling performance, delivering initial discharge capacity 74.9 mAh g-1 100 mA outstanding retention 90.0% after 200 cycles. Additionally, pouch exhibit open-circuit voltage various mechanical abuse

Язык: Английский

---

Modulating the Hydrogen Bond for a Stable Zinc Anode with a Wide Temperature Range via the Sucrose and Polyacrylamide Synergistic Effect

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Zinc-ion batteries become a major research focus in energy storage, valued for their low cost and high safety. However, widespread application is hindered by poor zinc anode stability caused dendrites, side reactions, performance across wide temperature range at strong hydrogen bond network aqueous electrolyte. In this study, we propose strategy the synergistic combination of polyacrylamide hydrogel with sucrose. The experimental theoretical results demonstrate that through effect sucrose, they regulate solvation structure Zn2+ inhibit interfacial reactions active water. Zinc corrosion dendrite growth issues were also effectively mitigated effect. Consequently, Zn//Zn-symmetric battery achieved stable cycling exceeding 6240 h room 0.5 mA cm–2 mAh cm–2. Zn//VO2 full has good stability, maintaining cycle even temperatures (10,000 cycles 1 A g–1 0 °C). Even −10 °C, it (Zn//Zn-symmetric more than 3970 h). This work provides an alternative developing low-cost, electrolytes zinc-ion batteries.

Язык: Английский

---