3D tremella-like nitrogen-doped carbon encapsulated few-layer MoS2 for lithium-ion batteries

Dong, Guangsheng; Fang, Yongzheng; Liao, Shuqing; Zhu, Kai; Yan, Jun; Ye, Ke

doi:10.1016/j.jcis.2021.05.150

Cited by 24 publications

(5 citation statements)

References 54 publications

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“…In addition, both pyridinic-N and pyrrolic-N could greatly improve electrochemical activity and surface wettability of carbon nanocomposites, thus endowing the material with high performance for Li/Na ion storage . Two peaks located at 284.8 and 286.4 eV in the C 1s spectrum (Figure f) are attributed to the C–C bond and the C–N bond, respectively . Based on the discussions above, N-doped MoS 2 /carbon nanosheets could be fabricated through a high-temperature sulfuration process.…”

Section: Results and Discussionmentioning

confidence: 99%

“…30 Two peaks located at 284.8 and 286.4 eV in the C 1s spectrum (Figure 2f) are attributed to the C−C bond and the C−N bond, respectively. 49 Based on the discussions above, N-doped MoS 2 /carbon nanosheets could be fabricated through a hightemperature sulfuration process. Raman scattering was adopted to determine the graphitization degree of the carbon composition in C−MoS 2 NTs.…”

Section: Resultsmentioning

confidence: 99%

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Stable Li⁺/Na⁺ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS₂ Nanosheet/N-Doped Carbon Nanosheet Composites

Zhao

et al. 2021

ACS Appl. Nano Mater.

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Engineering a hollow architecture has been regarded as an efficient strategy for boosting energy storage and conversion. Herein, hollow hierarchical carbon nanotubes coupled with MoS 2 nanosheets were successfully designed and fabricated to construct high-performance lithium-/sodium-ion batteries. A tubular Mo−polydopamine hybrid precursor was formed by a simple metal chelation reaction and a self-template effect, and subsequently in situ converted into MoS 2 nanosheets embedded into carbon nanotubes after heat treatment. Benefiting from the synergistic effect between strong coupling hierarchical carbon/MoS 2 nanosheets and a tubular hollow structure, the as-prepared electrode exhibited an outstanding storage capacity and an ultrastable cycling stability for lithium-/ sodium-ion storage. Evaluated as an anode for a lithium-ion battery, it presented a high-rate capacity of 1228.2 mA h g −1 at 1000 mA g −1 . As for a sodium-ion battery, a capacity of 210.1 mA h g −1 can be maintained after 9000 cycles under a high current density of 8000 mA g −1 . The storage mechanism analysis indicated that the charge−discharge process was dominated by a pseudocapacitive behavior. The present work highlights the synthesis of electrode materials with a hierarchical hollow structure to boost the development of electrochemical energy storage.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Stable Li⁺/Na⁺ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS₂ Nanosheet/N-Doped Carbon Nanosheet Composites

Zhao

et al. 2021

ACS Appl. Nano Mater.

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“…The Warburg coefficients of the V 2 O 3 /C and V 2 O 3 electrodes are calculated to be 350.8 and 474.9 Ω s –1/2 , respectively (Figure b). The meaning of each symbol in formula is described in the Supporting Information , …”

Section: Resultsmentioning

confidence: 99%

“…The Warburg coefficients of the V 2 O 3 /C and V 2 O 3 electrodes are calculated to be 350.8 and 474.9 Ω s −1/2 , respectively (Figure 7b). The meaning of each symbol in formula 4 is described in the Supporting Information 47,48 The smaller the value of the Warburg coefficient, the higher the diffusion coefficient of the ion. The meaning of each symbol in formula 5 is described in the Supporting Information 49,50…”

Section: ■ Results and Discussionmentioning

confidence: 99%

V₂O₃ Nanoparticles Anchored on an Interconnected Carbon Nanosheet Network Toward High-Performance Sodium-Ion Batteries

Liao

Dong

et al. 2022

ACS Appl. Energy Mater.

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Designing the multidimensional nanomaterial hybrid composite electrode is an effective approach to improve the electrochemical conductivity, structural stability, and Na-ion storage capacity of the anode for sodium-ion batteries. Herein, through solvothermal reaction and subsequent calcination, the V 2 O 3 /C nanocomposite is synthesized which served as a capable Na-ion host. Zero-dimensional V 2 O 3 nanoparticles are in situ generated on a two-dimensional carbon layer to constitute a firm structure with high electrical conductivity. The V 2 O 3 /C nanocomposite shows desirable cycle performance (216 mA h g −1 at 0.5 A g −1 after 1000 cycles) and remarkable rate ability (205 mA h g −1 at 2 A g −1 ). Meanwhile, the Na-ion storage mechanism indicates that the storage capacity is mainly dominated by the capacitance behavior, thus enhancing the rate ability and cycle performance. This work demonstrates the importance of constructing a nanocomposite on electrode materials and displays a viable approach to fabricate nanocomposite electrode materials for metal-ion batteries.

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“…[26][27][28] However, the complex and time-consuming procedure as well as the harsh synthesis conditions such as high temperature and inert atmosphere, damage the utility of application. [29][30][31][32] In structural designs, the phase transition triggered by the growth process on the template is often overlooked, which mainly attributed to the following reasons:…”

Section: Introductionmentioning

confidence: 99%

Phase Transition Induced via the Template Enabling Cocoon‐like MoS₂ an Exceptionally Electromagnetic Absorber

Fang

You

et al. 2022

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Structural engineering via the template method is efficient for micro‐nano assembling. However, only structural design and lack of composition control restrict their advanced application. To overcome this issue, applying a template to simultaneously realize the structural design and fine component control is highly desired, which has been ignored. In this study, a spinel‐shaped MoS2 heterostructure with controlled phase ratios of 1H and 2H phase is developed using the AlOOH template method. This work demonstrates that the MoS2 phase transition mechanism from 2H to 1T is substantially attributed to the close exposed crystal's surface and approximately accordant surface energy. The superiority and additional proof are provided based on density‐functional theory simulation, transmission electron microscope holography, etc. With an effective absorptance region of 6.3 GHz under a thickness of 1.4 mm, the reported samples present outstanding microwave absorption capacity. This is attributed to the beneficial coupled effect between the well‐designed structure and phase regulation. This work offers valuable insights into structural engineering and component regulation template methods.

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3D tremella-like nitrogen-doped carbon encapsulated few-layer MoS2 for lithium-ion batteries

Cited by 24 publications

References 54 publications

Stable Li⁺/Na⁺ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS₂ Nanosheet/N-Doped Carbon Nanosheet Composites

Stable Li⁺/Na⁺ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS₂ Nanosheet/N-Doped Carbon Nanosheet Composites

V₂O₃ Nanoparticles Anchored on an Interconnected Carbon Nanosheet Network Toward High-Performance Sodium-Ion Batteries

Phase Transition Induced via the Template Enabling Cocoon‐like MoS₂ an Exceptionally Electromagnetic Absorber

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3D tremella-like nitrogen-doped carbon encapsulated few-layer MoS2 for lithium-ion batteries

Cited by 24 publications

References 54 publications

Stable Li+/Na+ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS2 Nanosheet/N-Doped Carbon Nanosheet Composites

Stable Li+/Na+ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS2 Nanosheet/N-Doped Carbon Nanosheet Composites

V2O3 Nanoparticles Anchored on an Interconnected Carbon Nanosheet Network Toward High-Performance Sodium-Ion Batteries

Phase Transition Induced via the Template Enabling Cocoon‐like MoS2 an Exceptionally Electromagnetic Absorber

Contact Info

Product

Resources

About

Stable Li⁺/Na⁺ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS₂ Nanosheet/N-Doped Carbon Nanosheet Composites

Stable Li⁺/Na⁺ Batteries with Anodes Boosted by Hollow Tubular-Structured MoS₂ Nanosheet/N-Doped Carbon Nanosheet Composites

V₂O₃ Nanoparticles Anchored on an Interconnected Carbon Nanosheet Network Toward High-Performance Sodium-Ion Batteries

Phase Transition Induced via the Template Enabling Cocoon‐like MoS₂ an Exceptionally Electromagnetic Absorber