Polymer gels for aqueous metal batteries

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101426 - 101426

Published: Jan. 1, 2025

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Nano‐Metal–Organic Frameworks Isolated in Mesoporous Structures

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract As an alternative to bulk counterparts, metal–organic framework (MOF) nanoparticles isolated within conductive mesoporous carbon matrices are of increasing interest for electrochemical applications. Although promising, a “clean” surface is generally associated with poor compatibility and weak interactions metal/ligand precursors, which leads the growth MOFs inhomogeneous particle sizes on outer pore walls. Here, general methodology in situ synthesis eight nanoMOF composites mesochannels high dispersity stability reported. Mesoporous polydopamine (mesoPDA)‐F127 nanospheres unique chemistry, e.g., nanoconfined spaces, catechol functional groups, pyrrolic N doping, hydrophilic PEO blocks, found be suitable molecular platform. Sliced cross‐sectional TEM, HAADF‐STEM, corresponding EDS elemental mapping, as well nitrogen adsorption characterizations, utilized visualize process ZIF‐8 nanoparticles. These careful analyses provides direct evidence that highly dispersed exclusively located inside internal mesochannels. After moderate carbonization mesoPDA‐F127/ZIF‐8 nanocomposites, prototype carbon‐isolated nanostructure achieved, can regulate Zn 2+ plating electrochemistry toward stable aqueous batteries. This first report complete impregnation even dispersion nanoscale interior channels carbons.

Language: Английский

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Tunable N-doped Carbon Dots/SnO2 Interface as a Stable Artificial Solid Electrolyte Interphase for High-Performance Aqueous Zinc-Ion Batteries

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1013, P. 178521 - 178521

Published: Jan. 1, 2025

Language: Английский

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Synthesis of Sulfonyl Two-Dimensional Covalent Organic Frameworks for Supercapacitor Applications

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

Covalent organic frameworks (COFs) are attracting more attention for energy storage applications. COFs possess unique structural properties, such as highly ordered pore structures, abundant functionalization sites, and tunable chemical making them ideal candidates the development of novel materials. In this work, we synthesized sulfonyl two-dimensional (2D) covalent (SLD-COFs) using 4,4'-sulfonyldiphenylamine (SLD). SLD-COFs have a remarkable conjugated structure, which includes imine groups forming large π-bonds, structure can provide consecutive electron conduction paths, enables SLD-COF to transfer charges efficiently, thus improving electrical conductivity. Additionally, introduce redox-active participate in redox process during electrochemical reactions generate pseudocapacitive effect. For current 0.5 A/g, specific capacitance material was 31.5 F/g an acidic electrolyte 41.7 alkaline electrolyte. The flexibility good properties make potentially essential component Meanwhile, retention reaches 78.3% after 1000 GCD cycles at density 1 indicates its cycling stability.

Language: Английский

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Bio-inspired biomass hydrogel interface with ion-selective responsive sieving mechanism for corrosion-resistant and dendrite-free zinc-iodine batteries

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104113 - 104113

Published: Feb. 1, 2025

Language: Английский

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Kinetics Compensation Mechanism in Cosolvent Electrolyte Strategy for Aqueous Zinc Batteries

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Aqueous zinc batteries are the ideal choices to realize intrinsically safe energy storage, but parasitic side reactions make it difficult achieve in practice. Although cosolvent electrolyte effectively inhibits dendrites and mitigates unexpected reactions, brings inevitable kinetics losses. Here, we systematically investigate compare interactions between Zn2+ various oxygen-coordinated cosolvents under pure aqueous environments OTf- mixed solvent containing different cosolvents. And differences effect of on solvation structure ion migration quantitatively analyzed summarized. On this basis, propose a new compensation mechanism strategy that can compensate losses due introduction by weakening anion-cation pair interaction increasing transfer number. Theory experiments both demonstrate while improving electrochemical performance. This work provides comprehensive deep understanding designing electrolytes with superior More importantly, proposed be applied other similar properties battery systems.

Language: Английский

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Sustainable Release of Zincophilic Metal Ions from Separator Proactively Drives Interfacial Stabilization for Durable Zinc Anode

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract One of the important challenges in advancing aqueous zinc‐ion batteries is separator, which crucial for promoting stable electrode‐electrolyte interface and energy density battery. Herein, this study introduces a metal ion‐activated air‐laid paper (ALP Act) as an alternative traditional glass fiber separators with big thickness weight. Notably, sustainable release ions facilitates situ engineering, thus creating surface layer high zinc affinity to promote uniform migration deposition ions. By continuously adjusting interface, behaviors dendrite growth side reactions are effectively suppressed. Consequently, ALP Act continuous metal‐ion function enables anode attain 21‐fold increase running life beyond 3700 h compared conventional separator at 1 mA cm −2 l mAh . The Zn||Cu battery also achieves remarkable Coulombic efficiency 99.18% 2000 (1 /1 ). assembled Zn||NVO exhibits lifespan 3000 cycles charge discharge 3 A g −1 This research offers new avenue achieve low‐cost, long‐lasting, energy‐dense batteries.

Language: Английский

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Engineering low-cost multifunctional carbon interface layer with hydrophobic negative surface and oriented zinc deposition dynamics for dendrite-free zinc ion batteries

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137338 - 137338

Published: March 15, 2025

Language: Английский

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Construction of ternary Sn/SnO2/nitrogen-doped carbon superstructures as anodes for advanced lithium-ion batteries

Nano Research, Journal Year: 2024, Volume and Issue: 17(11), P. 9721 - 9727

Published: Aug. 28, 2024

Language: Английский

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Multifunctional Self‐Assembled Bio‐Interfacial Layers for High‐Performance Zinc Metal Anodes

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(42)

Published: July 26, 2024

Abstract Rechargeable aqueous zinc‐ion (Zn‐ion) batteries are widely regarded as important candidates for next‐generation energy storage systems low‐cost renewable storage. However, the development of Zn‐ion is currently facing significant challenges due to uncontrollable Zn dendrite growth and severe parasitic reactions on metal anodes. Herein, we report an effective strategy improve performance by leveraging self‐assembly bovine serum albumin (BSA) into a bilayer configuration BSA′s hydrophilic hydrophobic fragments form unique intelligent ion channels, which regulate migration ions facilitate their desolvation process, significantly diminishing anodes leading uniform deposition along (002) plane. Notably, Zn||Zn symmetric cell with BSA electrolyte additive demonstrated stable cycling up 2400 hours at high current density 10 mA cm −2 . This work demonstrates pivotal role self‐assembled protein structures in improving durability batteries.

Language: Английский

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