Self-assembled MoTe2 hierarchical nanoflowers with carbon coating as anode material for excellent sodium storage performance

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139111 - 139111

Published: Sept. 9, 2022

Language: Английский

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Self‐Assembled 2D VS₂/Ti₃C₂T_x MXene Nanostructures with Ultrafast Kinetics for Superior Electrochemical Sodium‐Ion Storage

Advanced Science, Journal Year: 2023, Volume and Issue: 10(31)

Published: Aug. 27, 2023

Constructing nanostructures with high structural stability and ultrafast electrochemical reaction kinetics as anodes for sodium-ion batteries (SIBs) is a big challenge. Herein, the robust 2D VS2 / Ti3 C2 Tx MXene strong Ti─S covalent bond synthesized by one-pot self-assembly approach are developed. The interfacial interaction renders material of good durability enhanced kinetics. Meanwhile, enlarged few-layered nanosheets can be easily obtained according to this interaction, providing conductive network sufficient electrolyte penetration rapid charge transfer. As predicted, /MXene exhibit an extremely low sodium diffusion barrier confirmed DFT calculations small transfer impedance evidenced spectroscopy (EIS) analysis. Therefore, SIBs based on electrode present first-class performance ultrahigh average initial columbic efficiency 95.08% excellent storage capacity 424.6 mAh g-1 even at 10 A . It also shows outstanding 514.2 1 retention nearly 100% within 500 times high-rate cycling. Such impressive demonstrates successful synthesis strategy great potential interactions high-performance energy devices.

Language: Английский

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Aliovalent doping and structural design of MoSe2 with fast reaction kinetics for high-stable sodium-ion half/full batteries

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 652, P. 1427 - 1437

Published: Aug. 30, 2023

Language: Английский

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Synergistic Effects of Confinement Structure and Local‐Expanded Interlayer Spacing in Fe₂Mo₃O₈@C@MoS₂ Toward High‐Efficient Sodium Ion Storage

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 22, 2024

Abstract Developing multicomponent composite materials with delicate morphology and tailored structure is of vital importance for designing advanced sodium‐ion batteries (SIBs). Herein, a confinement‐structured Fe 2 Mo 3 O 8 @C@MoS local‐expanded interlayer spacing designed via high‐temperature phase transition from FeMoO 4 to the tactically introducing dopamine molecules into MoS nanosheets. By analysis in situ generated solid electrolyte interphase film different electrolytes, favorable compatibility ether‐based electrolytes well illustrated. Importantly, sodium storage mechanism detailed structural evolution are established first time by X‐ray diffraction. Furthermore, theoretical calculations indicate unique facilitates internal charge transfer enhances Na + adsorption ability. Thanks confinement structure, interlayers robust framework, achieves high reversible specific capacity 636 mAh g ‒1 at 0.1 A , excellent rate capability (301 5.0 ) ultralong cycling stability (365 –1 after 6000 cycles 2.0 ). The study provides an essential understanding promising strategy constructing high‐performance anodes SIBs.

Language: Английский

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Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Small, Journal Year: 2023, Volume and Issue: 19(52)

Published: Aug. 30, 2023

Despite being one of the most promising materials in anode materials, molybdenum sulfide (MoS2 ) encounters certain obstacles, such as inadequate cycle stability, low conductivity, and unsatisfactory charge-discharge (CD) rate performance. In this study, a novel approach is employed to address drawbacks MoS2 . Carbon polymer dots (CPDs) are incorporated prepare three-dimensional (3D) nanoflower-like spheres @CPDs through self-assembly 2D nanosheets, followed by annealing at 700 °C. The CPDs play main role creation also mitigate nanosheet limitations. minimize volume changes during cycling improve performance, leading exceptional performance stability both Lithium-ion Sodium-ion batteries (LIBs SIBs). optimized @CPDs-2 electrode achieves superb capacity 583.4 mA h g-1 high current density (5 A after 1000 cycles LIBs, remaining 302.8 500 5 SIBs. Additionally, full cell LIBs/SIBs exhibits good demonstrating its potential for practical application fast-charging high-energy storage.

Language: Английский

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Facile synthesis of ultrathin carbon nanosheets through NaCl-KCl templates coupled with ice-induced assembly strategy from carbon quantum dots as lithium-ion batteries anodes

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 976, P. 173325 - 173325

Published: Dec. 28, 2023

Language: Английский

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Interfacial coupling of MoS2/MoO3 hierarchical heterostructures as superior anodes for high-performance lithium-ion battery

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 72, P. 108595 - 108595

Published: Aug. 8, 2023

Language: Английский

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Building of lightweight Nb2CTx MXene@Co nitrogen-doped carbon nanosheet arrays@carbon fiber aerogels for high-efficiency electromagnetic wave absorption in X and Ku bands inspired by sea cucumber

Nano Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 7, 2024

Language: Английский

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Non-Ti MXene: An emerging class of 2D materials for non-Li batteries

Carbon, Journal Year: 2024, Volume and Issue: 229, P. 119537 - 119537

Published: Aug. 10, 2024

Language: Английский

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In-situ decoration of tin sulfide on Niobium carbide MXene with robust electronic coupling for improved sodium storage performance

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 636, P. 255 - 266

Published: Jan. 7, 2023

Language: Английский

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