MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes

Wan, Liu; Sun, Wei; Shen, Juanjuan; Li, Xiaocheng

doi:10.1016/j.electacta.2016.06.115

Cited by 16 publications

(9 citation statements)

References 57 publications

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“…It can be seen that pure MoS 2 nanosheets show a HER performance comparable to that of our previous report. 42 After the sample is doped with P atoms, the onset overpotential and overpotential decrease gradually. Notably, sample P3 exhibits the least η onset of 15 mV among all P-doped MoS 2 nanosheets, while the pure MoS 2 nanosheets display η onset of 88 mV (Table 1).…”

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confidence: 99%

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS₂ Nanosheets toward Electrocatalytic Hydrogen Evolution

et al. 2017

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MoS 2 -based transition-metal chalcogenides are considered as cost-effective, highly active, and stable materials with great potential in the application of electrocatalytic hydrogen production. However, their limited quantity of active sites and poor conductivity have hampered the efficiency of hydrogen production. Combining calculations and experiments, we demonstrate that P dopants could be the new active sites in the basal plane of MoS 2 and help improve the intrinsic electronic conductivity, leading to a significantly improved activity for hydrogen evolution. Furthermore, the P-doped MoS 2 nanosheets show enlarged interlayer spacing, facilitating hydrogen adsorption and release progress. Experimental results indicate that the P-doped MoS 2 nanosheets with enlarged interlayer spacing exhibit remarkable electrocatalytic activity and good long-term operational stability (with Tafel slope of 34 mV/dec and an extremely low overpotential of ∼43 mV at 10 mA/cm 2 ) . Our method demonstrated a facile technology for improving the electrocatalytic efficiency of MoS 2 for hydrogen evolution reaction through nonmetal doping, which could be explored to enhance and understand the catalytic properties of other transition-metal chalcogenides.

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confidence: 99%

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS₂ Nanosheets toward Electrocatalytic Hydrogen Evolution

et al. 2017

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Section: Resultsmentioning

confidence: 99%

“…It can be observed that the intensity of redox peaks at 2.37 and 1.87 V are gradually getting weak and the overpotential increases with the cycle number, indicating the poor structural stability and serious polarization problem of pure MoS 2 . [33,34] Figure 7(c, d) depicts the discharge-charge profiles of MoS 2 / C-50 and MoS 2 electrodes at 200 mA g À1 for the initial three cycles. From Figure 7d, it can be observed that there are two voltage platforms at 1.1 and 0.6 V during the first discharge of the MoS 2 electrode which corresponds to the process of Li þ reacting with MoS 2 to form Mo and Li 2 S. And then, these two voltage platforms disappear in the subsequent cycles, implying that the reaction process is irreversible.…”

Section: Structure and Electrochemical Properties Of Mos 2 /C Compositesmentioning

confidence: 99%

Preparation and Lithium Storage Properties of Hierarchical Hydrangea‐Like MoS₂/C Composites

et al. 2022

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In this article, hierarchical hydrangea‐like MoS2/C composites are synthesized through a simple one‐pot solvothermal method followed by heat treatment for the first time. The morphology and electrochemical performance of MoS2/C are largely affected by the solvent composition and carbon content during the solvothermal process. The interlayer distance of few‐layer MoS2 is increased by the insertion of carbon layer for the unique hierarchical hydrangea‐like MoS2/C nanostructure. The cycling performance of MoS2/C is greatly improved because it takes advantage of both good conductivity and structural stability. When tested as an anode of a lithium‐ion battery, the results show that the reversible specific capacity of the MoS2/C electrode is 853.1 mAh g−1 after 80 cycles at a current density of 200 mA g−1 with capacity retention of 98.4%. Especially, when tested under 500 mA g−1, the reversible specific capacity can reach to 780.6 mAh g−1 after 200 cycles.

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“…In the template-assisted synthesis, the nucleation and growth of the target materials are on the surface of a template, which has been widely used for the synthesis of many 2D materials, such as graphene, 80 porous carbon nanosheets, 81 and TMD nanosheets. 82 The 2D MOFs could also be bottom-up synthesized by different templateassisted methods including the hard-template method and sacricial-template method. 83 The hard-template method is a conventional method to controllably deposit the target materials on an unreacted substrate, in which the morphology of the target materials could be regulated by the surface properties of the substrate.…”

Section: Bottom-up Approachmentioning

confidence: 99%

Two-dimensional metal–organic frameworks and their derivatives for electrochemical energy storage and electrocatalysis

et al. 2020

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MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes

Cited by 16 publications

References 57 publications

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS₂ Nanosheets toward Electrocatalytic Hydrogen Evolution

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS₂ Nanosheets toward Electrocatalytic Hydrogen Evolution

Preparation and Lithium Storage Properties of Hierarchical Hydrangea‐Like MoS₂/C Composites

Two-dimensional metal–organic frameworks and their derivatives for electrochemical energy storage and electrocatalysis

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MgO-template-assisted synthesis of worm-like carbon@MoS2 composite for lithium ion battery anodes

Cited by 16 publications

References 57 publications

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS2 Nanosheets toward Electrocatalytic Hydrogen Evolution

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS2 Nanosheets toward Electrocatalytic Hydrogen Evolution

Preparation and Lithium Storage Properties of Hierarchical Hydrangea‐Like MoS2/C Composites

Two-dimensional metal–organic frameworks and their derivatives for electrochemical energy storage and electrocatalysis

Contact Info

Product

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P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS₂ Nanosheets toward Electrocatalytic Hydrogen Evolution

P Dopants Triggered New Basal Plane Active Sites and Enlarged Interlayer Spacing in MoS₂ Nanosheets toward Electrocatalytic Hydrogen Evolution

Preparation and Lithium Storage Properties of Hierarchical Hydrangea‐Like MoS₂/C Composites