Shuttle-inhibited 3D sandwich MXene/SnO2QDs sulfur host for high-performance lithium-sulfur batteries

Guo, Rongting; Li, Wei; Huang, Ruiqin; Chen, Mengqi; Liu, Zheng; Han, Guo‐Cheng

doi:10.1016/j.jallcom.2022.168427

Cited by 10 publications

(3 citation statements)

References 50 publications

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“…At the same time, some other metal compounds, such as MnO 2 , TiN, etc., − have also been used for the construction of MXene composites. The mechanism of action is roughly similar, which still simultaneously enhances the adsorption and catalysis of polysulfides, thereby accelerating the redox kinetic process.…”

Section: Cathode Constructionmentioning

confidence: 99%

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Yang,

Liu,

Zhao

et al. 2024

Energy Fuels

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Lithium−sulfur batteries (LSBs) are a new type of energy storage system with great potential, which has an ultrahigh energy density of 2600 Wh kg −1 . However, the polysulfide shuttle and dendrite growth have seriously impeded practical applications. As a new type of twodimensional (2D) transition metal carbide/nitride, MXene possesses the advantages of metal conductivity, structural diversity, and abundant terminal groups. Thus, it is beneficial to regulate the dynamic process of ions, which make it widely applied in LSBs. Guided by the multifunction of MXene in LSBs, this work summarizes the application of MXene for cathode construction, separator modification, anode protection, and electrolyte regulation. Recent related works are reviewed from the aspects of MXene-based morphology adjustment, element doping, surface modification, and composite material construction. Finally, the challenges and application prospects of MXene are prospected.

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Section: Cathode Constructionmentioning

confidence: 99%

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Yang,

Liu,

Zhao

et al. 2024

Energy Fuels

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“…Owing to these benefits, the MXene with the addition of 10% of SnO 2 QDs in sublimated sulfur (denoted as MSn-10%/S) cathode has outstanding rate performance and cycling stability with a high discharge capacity of 1147.6 mAh g −1 (900 cycles at 1 C with a tiny capacity decay rate of 0.053%), as compared with MXene/S which only exhibited 615.4 mAh g −1 . 154 MXene-based electrodes for supercapacitors.-The energy storage systems feature better cyclability and improved power densities than conventional batteries. EDLCs and pseudocapacitors are two supercapacitor types, commonly called electrochemical capacitors, based on how they store energy.…”

Section: Electrochemical Performance Of Mxene Hybrid Compositesmentioning

confidence: 99%

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Mohd Abdah,

Thakur

et al. 2023

J. Electrochem. Soc.

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MXenes are an emerging class of two-dimensional transition metal carbides and nitrides with metallic conductivity and hydrophilic surfaces. The discovery of MXenes has opened new possibilities for developing advanced hybrid composites for energy storage and conversion applications. This review summarizes recent advances in developing MXene-based hybrid composites, including their synthesis, characterization, and electrochemical performance. The heterostructure of MXenes with nanocarbons, metal oxides, polymers, and other nanomaterials can overcome the limitations of pristine MXenes and lead to enhanced lithium/sodium-ion storage, pseudocapacitive performance, and electrocatalytic activity. Various fabrication techniques have been employed to synthesize MXene composites with controlled nanostructures, morphology, and interfacial properties. Characterization by microscopy, spectroscopy, and electrochemical methods has shed light on structure-property relationships in these materials. As electrode materials, properly designed MXene hybrids have achieved high specific capacity, excellent rate capability, and long-term stability. The review also discusses strategies for further improving MXene composite energy storage performance, as well as emerging applications such as thermoelectrics and photocatalysis. Continued research to understand interfacial effects and optimize MXene heterostructures holds promise for developing next-generation energy storage technologies.

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“…Despite the high praise for MXenes, especially in the field of energy storage, due to their high electrical conductivity, large specific surface area, and unique pseudocapacitive characteristics [29], there are still important challenges, including restacking issues caused by strong van der Waals forces between MXenes nanosheets and their irreversible capacity during the first discharge process from the formation of solid electrolyte interface (SEI) films [30][31][32]. Introducing carbon nanotubes, silicon, metal sulfides, or metal oxides into the layers of MXenes can alleviate the stacking problem of MXene; meanwhile, MXenes can significantly improve the stability of intercalated materials during electrochemical cycling [33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Engineering Ti3C2-MXene Surface Composition for Excellent Li+ Storage Performance

Chen,

Fan,

et al. 2024

Molecules

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Exploiting novel materials with high specific capacities is crucial for the progress of advanced energy storage devices. Intentionally constructing functional heterostructures based on a variety of two-dimensional (2D) substances proves to be an extremely efficient method for capitalizing on the shared benefits of these materials. By elaborately designing the structure, a greatly escalated steadiness can be achieved throughout electrochemical cycles, along with boosted electron transfer kinetics. In this study, chemical vapor deposition (CVD) was utilized to alter the surface composition of multilayer Ti3C2Tx MXene, contributing to contriving various layered heterostructure materials through a precise adjustment of the reaction temperature. The optimal composite materials at a reaction temperature of 500 °C (defined as MX500), incorporating MXene as the conductive substrate, exhibited outstanding stability and high coulombic efficiency during electrochemical cycling. Meanwhile, the reactive sites are increased by using TiS2 and TiO2 at the heterogeneous interfaces, which sustains a specific capacity of 449 mAh g−1 after 200 cycles at a current density of 0.1 A g−1 and further demonstrates their exceptional electrochemical characteristics. Additionally, the noted pseudocapacitive properties, like MXene materials, further highlight the diverse capabilities of intuitive material design. This study illuminates the complex details of surface modification in multilayer MXene and offers a crucial understanding of the strategic creation of heterostructures, significantly impacting sophisticated electrochemical applications.

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Shuttle-inhibited 3D sandwich MXene/SnO2QDs sulfur host for high-performance lithium-sulfur batteries

Cited by 10 publications

References 50 publications

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Engineering Ti3C2-MXene Surface Composition for Excellent Li+ Storage Performance

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