Long-Lifespan Fibrous Aqueous Ni//Bi Battery Enabled by Bi₂O₃–Bi₂S₃ Hierarchical Heterostructures

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(28), С. 36413 - 36422

Опубликована: Июль 5, 2024

Bismuth oxide (Bi2O3) materials are considered as great promising anodes for aqueous batteries on account of the high capacity well wide potential plateau. Nevertheless, low conductivity and severe volumetric change Bi2O3 in course cycling main limiting factors their application energy-storage systems. Herein, we propose design unique hierarchical heterostructures constructed by Bi2S3 nanosheets (NSs) manufactured immediately surface carbon nanotube fibers (CNTFs). The Bi2O3–Bi2S3 (BO-BS) exhibits enhanced increased stability comparison with pure Bi2S3. BO-BS NSs/CNTF electrode indicates exceptional rate capability stability, while creating a reversible 0.68 mAh cm–2 at 4 mA cm–2, anticipated. Additionally, quasi-solid-state fibrous Ni//Bi battery that was built anode delivers an 52.7% retention after 4000 cycles 80 ultrahigh 0.35 energy density 340.1 mWh cm–3 880 mW cm–3. This work demonstrates constructing bismuth-based high-performance other devices.

Язык: Английский

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Hydrogen-bond chemistry inhibits Jahn–Teller distortion caused by Mn 3d orbitals for long-lifespan aqueous Zn//MnO₂ batteries

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(37), С. 25491 - 25503

Опубликована: Янв. 1, 2024

By introducing NH 4 + , hydrogen-bond-modulated MnO 2 nanoflowers inhibit the stretching of [MnO 6 ] octahedra along z axis, reduce occurrence Jahn–Teller distortion, and achieve long-lifespan aqueous Zn//MnO batteries.

Язык: Английский

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Spatial and Electrostatic Dual‐Confinement in Hierarchical Hollow Bi‐Bi₂O₃@Carbon Nanofibers for Dendrite Suppression and Side Reaction Mitigation in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Abstract The widespread application of aqueous zinc‐ion batteries (AZIBs) is hindered by anode dendrite formation and side reactions, reducing cycling life performance. This study introduces Bi‐Bi₂O₃‐loaded carbon nanofibers (Bi‐Bi₂O₃@CNF) with hierarchical hollow structures surface grooves fabricated via electrospinning, thermal treatment, in situ growth. Experimental characterization density functional theory reveal that the high area fibrous network Bi‐Bi₂O₃@CNF enhance electron transport electrolyte distribution, effectively ohmic resistance concentration polarization. “Spatial Effect” provides ample space for uniform Zn deposition. Additionally, situ‐grown Bi‐Bi₂O₃, pyridinic nitrogen, pyrrolic C─O─Bi bonds induce strong zinc affinity electronegativity, generating an “Electrostatic Confinement amplifies “spatial effect” into a “Dual‐Confinement Effect.” synergy ensures deposition, suppresses dendrites mitigates Compared to pure anodes, reduces polarization overpotential 17.6%, increases hydrogen evolution 11.52%, maintains Coulombic efficiency 98.8% over 200 h. In full cells, Zn@Bi‐Bi₂O₃@CNF//MnO₂ achieves 73.0% capacity retention after 1000 cycles at mA g⁻¹. work promising strategy high‐efficiency, durable, safe AZIBs offers valuable insights design advanced energy storage materials.

Язык: Английский

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Spatial Confinement and Induced Deposition of ZnHCF in 3D Structure for Ultrahigh‐Rate and Dendrite‐Free Zn Anodes

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract Aqueous Zn‐metal batteries (AZBs) are thought as highly prospective candidates for large‐scale energy‐storage systems because of their abundant natural resources, low cost, high safety, and environmentally friendly. Nevertheless, the key problems AZBs uncontrollable zinc dendrites growth water‐induced erosion faced by anodes. Therefore, reducing hydrophilicity anode introducing zincophilic sites availably strategy. Herein, 3D highly‐conductive host is developed to inhibit Zn growth, which have a porous structure consisting graphene carbon nanotubes embedded with nucleation Prussian blue analogs (ZnHCF@3D‐GC). The inner ZnHCF possess minimized barriers, can serve favorable sites, provide buffer interspace allow even more high‐capacity plating. Additionally, density functional theory results show that exhibits strong binding energy adsorption (002) plane, guide horizontal deposition in host. As result, assembled symmetrical cell able stabilize 900 cycles at an ultrahigh current 100 mA cm −2 . Zn‐ZnHCF@3D‐GC//MnO 2 Zn‐ZnHCF@3D‐GC//ZnHCF full cells be stably cycled 1000 2.0 A g −1

Язык: Английский

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Constructing Autoregulative Electric Double Layer Through Dielectric Effect Toward Fast Charging Zinc Metal Anode

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract The inhomogeneous dendrite growth and parasitic side reactions of Zn anodes as well its sluggish solvation/de‐solvation kinetics severely hinder the practicalization fast charging Zn‐ion batteries. Regulating electric double layer (EDL) structure is an effective strategy to address these issues. Herein, a perovskite dielectric ZnTiO 3 (ZTO) designed on anode construct autoregulative EDL for achieving capability. ZTO can spontaneously generate surface charge with external voltage regulate structure, which results in increased/decreased capacitance under plating/stripping potential respectively, leading promoted 2+ rapid reaction kinetics. Meanwhile, H 2 O‐insufficient environment created by self‐regulated uniform field prevent during deposition process. Attributed feature, ZTO@Zn exhibits excellent cycle stability over 2850 h at 1 mA cm −2 symmetrical cells. Even high current density 50 , it still stable 230 h. Additionally, assembled ZTO@Zn//AC supercapacitor demonstrates ultralong lifetime 140 000 cycles 5 A g −1 . This work provides regulation realize capability metal practical application.

Язык: Английский

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Cold-Pressing Strategy for Constructing Simple and High-Performance Dendrite-Free Zinc Anodes for Aqueous Zinc-Ion Batteries

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

Язык: Английский

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Customizing Helmholtz Plane with N, F, P Tri‐Doped rGO/CNT Aerogel Protective Layer for Long‐Life Zinc‐Ion Batteries

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Апрель 10, 2025

Abstract The practical application of aqueous zinc‐ion batteries (AZIBs) is impeded by dendrite formation and water‐induced parasitic reactions at the anodes. In this article, a relatively hydrophobic inner Helmholtz plane (IHP) an outer (OHP) with abundant nucleation sites are engineered through coating N, F, P heteroatom doped reduced graphene oxide/carbon nanotube (NFP‐rGO‐CNT) multifunctional aerogel protective layer. rGO certain hydrophobicity construct lean‐water environment IHP, effectively blocking adverse between water metallic Zn, while zincophilic uniformly distributed heteroatoms facilitate Zn 2+ migration homogenize flux OHP, thereby promoting directional deposition along (002) crystal plane. Consequently, fabricated NFP‐rGO‐CNT/Zn//Cu asymmetric cell exhibits high Coulombic efficiency close to 100% for 3200 cycles. addition, symmetric assembled NFP‐rGO‐CNT/Zn electrodes presents impressive lifespan 1990 h 5 mA cm −2 2 mAh , significantly outperforming control group (about 27 h). More remarkably, NFP‐rGO‐CNT/Zn//V O 3 pseudo‐pouch capable powering small fan rotate steadily. This layer strategy offers novel perspective HP regulation, enabling textured reversible

Язык: Английский

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Effect of Trivalent Metal Cations in Layered Double Perovskites on Highly Selective CO₂ Photoreduction to CO

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Trivalent metal cation engineering in vacancy-ordered layered double perovskites (LDP) is a useful strategy to tune photocatalytic activity. However, the regulatory mechanism of composition on performance still lacks in-depth understanding. This study explores LDP with formula Cs4CdX2Cl12 (X = Bi, Sb) for CO2 reduction. The catalytic fine-tuned by regulating M(III)-site ions. yields CO and CH4 from Cs4CdSb2Cl12 MCs were measured at 23.81 2.68 μmol g-1, resulting selectivity 89.9%. Cs4CdBi2Cl12 demonstrated higher yields, produced 90.77 2.53 achieving 97.2%. In addition, situ diffuse reflectance infrared Fourier transform spectra reveal that modulation ions M(III)-position can enhance activity MCs. Density functional theory (DFT) analysis suggests Bi displays lower energy barrier than Sb rate-determining step, thus facilitating effective reduction CO. These findings highlight influence selection structural properties performance.

Язык: Английский

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Quaternary Alloy Interfaces for Stable Zinc Anodes for High‐Performance Aqueous Zinc‐Ion Batteries With Long‐Term Cycling Stability

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) have emerged as a promising energy storage solution owing to their intrinsic safety, low cost, environmental friendliness, and high theoretical specific capacity. However, practical application is hindered by uncontrollable dendrite growth side reactions at the zinc metal anode. To address these challenges, simple cost‐effective electrodeposition strategy proposed construct quaternary Zn‐Cu‐Sn‐Bi alloy artificial interface layer on foil (ZCSB@Zn) anode of AZIBs. Density functional theory (DFT) calculations in situ optical observation confirm that this dense reduces migration barrier weakens hydrogen adsorption, facilitating uniform deposition while effectively suppressing formation. The symmetric ZCSB@Zn cell exhibits extraordinary cycle stability exceeding 8000 h. Furthermore, assembled ZCSB@Zn//CSB‐MnO 2 full demonstrates capacity 199 mAh g −1 1 A , maintaining even under loading 10 mg cm −2 temperature conditions (50 °C). This study presents scalable for constructing layers anodes, highlighting potential AZIB applications.

Язык: Английский

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Ag-doped Cu nanoboxes supported by rGO for ultra-stable Zn anodes in aqueous Zn-ion battery

Nano Research, Год журнала: 2024, Номер 17(11), С. 9688 - 9696

Опубликована: Авг. 17, 2024

Язык: Английский

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