Dendrite‐Free Li Metal Anode Achieved by Bi‐Functional Host of NH₂‐Modified UiO‐66 on Zn‐Embedded Porous Carbon Nanofibers

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

Published: Feb. 11, 2025

Abstract 3D carbonaceous host is considered as an ideal candidate for stabilizing Li metal anode (LMA) owing to its lightweight and high electronic conductivity. Nonetheless, the surface chemistries of carbon materials at different locations should be regulated modify lithiophilicity ion diffusion. In this study, a metal–organic frameworks‐engaged strategy design core–shell porous with mixed ionic/electronic conducting feature developed. To specific, Zn‐embedded nanofibers (Zn/CF) are designed cores using ZIF‐8 particles precursors pore‐forming agents. Meanwhile, NH 2 ‐functionalized UiO‐66 (NH ‐UiO‐66) nanoparticles in‐situ grown on above fibers promoted ions migration. As result, composite LMA bi‐functional Zn/CF@NH ‐UiO‐66 demonstrates enhanced stability rate performance. Particularly, obtained asymmetric cell delivers stable operation up 500 cycles 1 mA cm −2 . Moreover, corresponding Li‐Zn/CF@NH ‐UiO‐66//LiFePO 4 full shows high‐capacity retention 93.4% over 1700 C (1 ≈169 g −1 ).

Language: Английский

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Optoelectronic Artificial Synapses Based on ZnO/Nanoporous Hybrid Thin Film by Atomic/Molecular Layer Deposition

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 4668 - 4674

Published: May 2, 2025

An optoelectronic artificial synapse device has been established based on ZnO/Zn-HQ nanoporous hybrid thin films by atomic/molecular layer deposition. This unique microstructure in devices significantly enhances the response and relaxation time, enabling important biosynaptic functions under optical stimuli, such as Pavlov's dog experiment pattern recognition. The mechanism of ionization-deionization oxygen vacancies proposed for this device.

Language: Английский

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Long-Life Zinc Anodes via Molecular-Layer-Deposited Inorganic–Organic Hybrid Titanicone Thin Films

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(3), P. 4925 - 4933

Published: Jan. 9, 2025

Zinc-ion batteries (ZIBs) have consistently faced challenges related to the instability of zinc anode. Uncontrolled dendrite growth, hydrogen evolution reaction (HER), and byproduct accumulation on anode severely affect cycling life ZIBs. Herein, inorganic-organic hybrid thin films titanicones (Ti-based hydroquinone, TiHQ) were fabricated by molecular layer deposition (MLD) technology modify metal The MLD-based Zn@TiHQ suppresses growth surface, reduces side reactions, facilitates desolvation rapid transport Zn2+ ions. As a result, it maintains an average Coulombic efficiency (CE) as high 99.1% over 300 cycles at 0.5 mA cm-2 1 mAh cm-2, exhibiting excellent stability for 2800 h enhancing reversible capacity Zn@TiHQ||MnO2 full cell. This work demonstrates that MLD-derived TiHQ coating provides more stable interfacial environment anode, opening avenue designing high-performance anodes.

Language: Английский

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Improving Li anode performance with Cu@N-C nanowire modified Cu foam as a stable 3D-Host

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 642, P. 236949 - 236949

Published: April 9, 2025

Language: Английский

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Elucidating the role of polar functional groups in fluorinated polymer artificial interphase for stable lithium anodes

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152527 - 152527

Published: May 24, 2024

Language: Английский

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