Journal of Energy Storage, Год журнала: 2023, Номер 66, С. 107481 - 107481
Опубликована: Май 1, 2023
Язык: Английский
Materials Today, Год журнала: 2023, Номер 72, С. 318 - 358
Опубликована: Дек. 22, 2023
Язык: Английский
Процитировано
54
Advanced Functional Materials, Год журнала: 2023, Номер 33(43)
Опубликована: Июнь 21, 2023
Abstract Insufficient and unstable energy output is the bottleneck issue radically restricting application of micro‐supercapacitors (MSCs). Herein, an interlayer atom injection strategy that can anchor low‐valence Zn atoms (Zn δ + , 0 < <2) on O‐terminals Ti 3 C 2 T x (MXene) flakes within MXene/silver‐nanowires hybrid cathode symmetric MSCs first presented. Combining polyacrylamide/ZnCl hydrogel electrolyte rich in Cl − 2+ ions, matched /Zn (−0.76 V vs SHE) Ag/AgCl (0.23 SHE), redox couples between symmetrical electrodes are activated to offer faradaic charge storage beside ions‐intercalation involved pseudocapacitance. Thus, a battery‐type voltage plateau (≈0.9 V) appears discharge curve fabricated pseudo‐symmetric micro‐redox capacitor, simultaneously achieving density enhancement (117 µWh cm −2 at 0.5 mA ) substantially improved power stability (46% from region) relative before activation (98 without platform). The work provides fire‐new overcome performance bottlenecks confronting conventional MSCs.
Язык: Английский
Процитировано
45
Chemical Engineering Journal, Год журнала: 2024, Номер 482, С. 148774 - 148774
Опубликована: Янв. 17, 2024
MXene is a newly discovered 2D carbon-based material that predominantly conductive. The most common MXene, titanium carbide (Ti3C2), can be used as conductive to enhance the photocurrent generated by photoelectrochemical (PEC) sensors. In order produce sheets are of high quality for PEC sensors and other light-based applications, it imperative synthesis methods production continue improved an extensive understanding its properties gained. Several fluorinated non-fluorinated from MAX discussed in this review. Detailed description mechanical, optical, topological, electronic, electrochemical resultant MXenes also presented. A critical analysis density functional theory (DFT) data pure well changes optical bandgap when doped with heteroatoms form heterojunctions or ternary nanocomposites, extensively described. Additionally, systematic exposition done on current MXene-based sensors, highlighting parameters yield performing sensor. review concludes opinion future direction sensing field.
Язык: Английский
Процитировано
42
ACS Nano, Год журнала: 2024, Номер 18(6), С. 4651 - 4682
Опубликована: Фев. 2, 2024
MXenes have shown great potential for micro-supercapacitors (MSCs) due to the high metallic conductivity, tunable interlayer spacing and intercalation pseudocapacitance. In particular, negative surface charge hydrophilicity of make them suitable various solution processing strategies. Nevertheless, a comprehensive review MXene MSCs has not been conducted. this review, we present summary state-of-the-art in terms ink rheology, microelectrode design integrated system. The formulation rheological behavior different strategies, which are essential quality printed/coated films, presented. effects its compounds, 3D electrode structure, asymmetric on electrochemical properties discussed detail. Equally important, summarize system intelligent applications current challenges prospects development high-performance MSCs.
Язык: Английский
Процитировано
26
Nano Energy, Год журнала: 2023, Номер 120, С. 109108 - 109108
Опубликована: Ноя. 20, 2023
Язык: Английский
Процитировано
41
Advanced Functional Materials, Год журнала: 2023, Номер 33(41)
Опубликована: Июнь 7, 2023
Abstract Solid‐state energy storage devices (SSESDs) are believed to significantly improve safety, long‐term electrochemical/thermal stability, and energy/power density as well reduce packaging demands, showing the huge application potential in large‐scale storage. Nevertheless, some key issues like low ionic conductivities, poor interface contact, dendrites growth limit practical of SSESDs. In recent years, MXenes for SSESDs have received reassuring advances on account unique parameters. overall reviews about subject seldom. this review, current their derivatives solid‐state Li–metal, Li‐ion, Li–I/S, Na‐ion, Zn–air, Zn–metal batteries, supercapacitors cathode/anode optimization, medication, electrolyte fillers, etc., comprehensively reviewed. First all, essential principles shown, such precursors, etching/delamination strategies, superior properties systems. Meanwhile, classification evaluation parameters electrolytes summarized. Subsequently, application, modification mechanism, design strategy boosting electrochemical behaviors systematically reviewed discussed. At last, perspectives challenges future construction strategies recommended. This review shall assist scientists build advanced with along safety.
Язык: Английский
Процитировано
29
International Journal of Minerals Metallurgy and Materials, Год журнала: 2024, Номер 31(1), С. 33 - 47
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
17
Inorganics, Год журнала: 2024, Номер 12(4), С. 112 - 112
Опубликована: Апрель 12, 2024
Two-dimensional transition metal carbides/nitrides (MXenes) are emerging members of the two-dimensional material family, obtained by removing A layer MAX phase through methods such as liquid-phase etching. This article summarizes structure and properties MXenes, well several preparation methods, including etching with hydrofluoric acid fluoride salts, alkali-based etching, electrochemical Lewis molten salt direct synthesis. Due to their unique surface chemistry, MXenes exhibit good metallic conductivity, hydrophilicity, excellent flexibility, ion intercalation properties, showing great potential in research application supercapacitors attracting widespread attention. The combination MXene other types materials, polymers, hydroxides, oxides, carbon takes advantage composites improve energy storage performance shows supercapacitors. provides a detailed summary composite materials capacitor introduces progress field supercapacitor applications, aiming provide references for high-performance electrode materials.
Язык: Английский
Процитировано
16
Advanced Energy Materials, Год журнала: 2024, Номер 14(26)
Опубликована: Апрель 19, 2024
Abstract Prussian blue analogs (PBAs) featuring with 3D open framework are recognized as promising cathode candidates for Zinc‐ion batteries (ZIBs). However, challenges such unsatisfactory active site utilization, low conductivity, and abundant structural vacancies have impeded fulfillment of their potential. In this work, a conductive in‐plane porous MXene is the first time adopted multifunctional host material to enhance cobalt hexacyanoferrate (CoHCF) growth crystallinity. Particularly, uniform surface charges on identified induce anisotropic highly crystalline CoHCF, which critical alleviating practical drawbacks associated PBAs family. Empowered by targeted modification, CoHCF nanotube/MXene composite realizes high area defectiveness, resulting in an impressive capacity 197 mAh g −1 at 0.1 A retention 95.3% over 3000 cycles 2.0 . X‐ray spectroscopy density functional theory (DFT) reveal that Co─C bonds heterostructure facilitate rapid electron/Zn‐ion transfer, enhancing Zn storage kinetics. To validate applicability, pouch cells incorporating Zn|CoHCF/MXene further examined. This composition strategy, utilizing template, enhances area, crystallinity cathodes ZIBs, showcasing significant potential large‐scale energy applications.
Язык: Английский
Процитировано
16
Advanced Functional Materials, Год журнала: 2024, Номер 34(26)
Опубликована: Фев. 22, 2024
Abstract Zn‐ion capacitors (ZICs) assembled from cathodes with diffusion‐controlled behaviors and capacitive anodes have attracted increasing interest thanks to their satisfactory balanced energy power densities. However, currently, only two cathode materials of this type, MnO 2 V O 5 , are applied ZICs. MnSe is increasingly being reported exhibit characteristics in metal‐ion batteries supercapacitors, yet its insufficient interlayer spacing unstable structure lead poor storage capacity. Herein, Zn x Mn 1‐x Se microflowers nanosheets can be situ pre‐intercalated ions enlarge stabilize the hierarchical porous structure, demonstrating a superior for During charging/discharging process 0.14 0.86 electrode, redox couple at ≈0.6/0.3 on cyclic voltammetry profile, potential plateau appearing ≈0.2 discharge curve detected, corresponding insertion/extraction ions. Thus, long time realizes flexible ZIC polyacrylamide gel electrolyte activated carbon anode, achieving superb areal capacitance 2,038.2 mF cm −2 1 mA . This work offers an exemplary effort unlock fresh
Язык: Английский
Процитировано
13