α-MnS nanoparticles in-situ anchored in 3D macroporous honeycomb carbon as high-performance anode for Li-ion batteries

Zhu, Shiyu; Yuan, Yongfeng; Du, Pingfan; Zhu, Min; Chen, Y.B.; Guo, S.Y.

doi:10.1016/j.apsusc.2023.156619

Cited by 15 publications

(3 citation statements)

References 43 publications

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“…This also indicates that the multicomposition and core-shell structures have great advantages. A distinctive core-shell structure improves volumetric energy density thanks to the abundant active sites, fast ion mobility, strong electronic conductivity and favorable structural stability; increases the weight fraction of the active material and power density; and extends the cycling performance due to enhanced structural stability [35].…”

Section: Resultsmentioning

confidence: 99%

“…abundant active sites, fast ion mobility, strong electronic conductivity and favorable structural stability; increases the weight fraction of the active material and power density; and extends the cycling performance due to enhanced structural stability [35]. Figure 7b shows the cycling performance and coulombic efficiency of Zn-Co-Fe-S@N-C at a current density of 100 mA g −1 .…”

Section: Resultsmentioning

confidence: 99%

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Core–Shell Structure Trimetallic Sulfide@N-Doped Carbon Composites as Anodes for Enhanced Lithium-Ion Storage Performance

Li,

Zhu,

Yang

et al. 2023

Molecules

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The high specific capacity of transition metal sulfides (TMSs) opens up a promising new development direction for lithium-ion batteries with high energy storage. However, the poor conductivity and serious volume expansion during charge and discharge hinder their further development. In this work, trimetallic sulfide Zn–Co–Fe–S@nitrogen-doped carbon (Zn–Co–Fe–S@N–C) polyhedron composite with a core–shell structure is synthesized through a simple self-template method using ZnCoFe–ZIF as precursor, followed by a dopamine surface polymerization process and sulfidation during high-temperature calcination. The obvious space between the internal core and the external shell of the Zn–Co–Fe–S@N–C composites can effectively alleviate the volume expansion and shorten the diffusion path of Li ions during charge and discharge cycles. The nitrogen-doped carbon shell not only significantly improves the electrical conductivity of the material, but also strengthens the structural stability of the material. The synergistic effect between polymetallic sulfides improves the electrochemical reactivity. When used as an anode in lithium-ion batteries (LIBs), the prepared Zn–Co–Fe–S@N–C composite exhibits a high specific capacity retention (966.6 mA h g−1 after 100 cycles at current rate of 100 mA g−1) and good cyclic stability (499.17 mA h g−1 after 120 cycles at current rate of 2000 mA g−1).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Core–Shell Structure Trimetallic Sulfide@N-Doped Carbon Composites as Anodes for Enhanced Lithium-Ion Storage Performance

Li,

Zhu,

Yang

et al. 2023

Molecules

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“…Among various investigated anode materials such as hard carbon, , metallic alloys, , and metal oxides/sulfides/selenides, − pyrite iron disulfide (FeS 2 ) stands out as one type of competitive anode material on account of its high theoretical capacity (874 mA h g –1 ), moderate reaction platform, cost effectiveness, and environmental benignity. , Nevertheless, pristine FeS 2 still suffers from an intrinsically low electrical conductivity, sluggish ion-migration kinetics, and huge volume variation as well as a shuttling effect of polysulfides, which commonly result in severe structural pulverization and degradation of the electrode upon repeated cycling. , To address these troublesome issues, some well-established material design strategies, such as micro/nanostructure engineering, combination with carbonaceous materials, , and construction of a heterostructure, have been adopted to improve the electrochemical performance of FeS 2 . Designing heterogeneous interfaces by coupling two different components can provide abundant active sites, accelerate ion transport, and enhance reaction kinetics to improve electrochemical performance .…”

Section: Introductionmentioning

confidence: 99%

Prussian Blue Analogue Derived CoS₂/FeS₂ Confined in N, S Dual-Doped Carbon Nanofibers for Sodium Storage

Ren,

Tang,

Song

et al. 2023

ACS Appl. Nano Mater.

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Pyrite iron disulfide (FeS 2 ) has aroused wide attention owing to its high theoretical capacity, making it a promising anode material for sodium-ion batteries (SIBs). Unfortunately, the poor electrical conductivity, large volume variation, and sluggish ion-migration kinetics lead to inferior rate capability and cycle stability, thus limiting its practical application. Herein, utilizing Prussian blue analogues (PBAs) as precursors, hollow heterostructured CoS 2 /FeS 2 nanoparticles confined in N, S dual-doped carbon nanofibers (denoted as H-CoS 2 /FeS 2 @CNFs) are successfully developed via facile electrospinning, carbonization, and gas sulfurization processes. The effective combination of a unique hollow heterostructure and highly conductive N, S dual-doped CNFs can accelerate electron transport and ion diffusion kinetics, avoid aggregation of active materials, and obtain enhanced structural stability. As expected, the optimal H-CoS 2 /FeS 2 @CNFs-2 hybrid composite delivers a high reversible capacity of 542.6 mA h g −1 after 150 cycles at 0.5 A g −1 and outstanding cycling stability with a capacity of 323.7 mA h g −1 over 1500 cycles at 5.0 A g −1 , showing the excellent sodium storage capability for SIBs. The rational design offers inspiration for fabricating high-performance bimetallic sulfides as anodes of SIBs through spatial confinement and a heterogeneous interface engineering strategy.

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Metal-organic framework-derived ultrafine CoSe nanocrystal@honeycomb porous carbon nanofiber as multidimensional advanced anode for sodium-ion batteries

Huang

Yuan

Yao

et al. 2023

Applied Surface Science

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α-MnS nanoparticles in-situ anchored in 3D macroporous honeycomb carbon as high-performance anode for Li-ion batteries

Cited by 15 publications

References 43 publications

Core–Shell Structure Trimetallic Sulfide@N-Doped Carbon Composites as Anodes for Enhanced Lithium-Ion Storage Performance

Core–Shell Structure Trimetallic Sulfide@N-Doped Carbon Composites as Anodes for Enhanced Lithium-Ion Storage Performance

Prussian Blue Analogue Derived CoS₂/FeS₂ Confined in N, S Dual-Doped Carbon Nanofibers for Sodium Storage

Metal-organic framework-derived ultrafine CoSe nanocrystal@honeycomb porous carbon nanofiber as multidimensional advanced anode for sodium-ion batteries

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α-MnS nanoparticles in-situ anchored in 3D macroporous honeycomb carbon as high-performance anode for Li-ion batteries

Cited by 15 publications

References 43 publications

Core–Shell Structure Trimetallic Sulfide@N-Doped Carbon Composites as Anodes for Enhanced Lithium-Ion Storage Performance

Core–Shell Structure Trimetallic Sulfide@N-Doped Carbon Composites as Anodes for Enhanced Lithium-Ion Storage Performance

Prussian Blue Analogue Derived CoS2/FeS2 Confined in N, S Dual-Doped Carbon Nanofibers for Sodium Storage

Metal-organic framework-derived ultrafine CoSe nanocrystal@honeycomb porous carbon nanofiber as multidimensional advanced anode for sodium-ion batteries

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Product

Resources

About

Prussian Blue Analogue Derived CoS₂/FeS₂ Confined in N, S Dual-Doped Carbon Nanofibers for Sodium Storage