Intimately coupled WS2 nanosheets in hierarchical hollow carbon nanospheres as the high-performance anode material for lithium-ion storage

Zhao, Zejun; Chao, Yuguang; Wang, Fang; Dai, Jiayi; Qin, Yifan; Bao, Xiaoguang; Yang, Yong; Guo, Shaojun

doi:10.1007/s12598-021-01850-w

Cited by 47 publications

(23 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The two peaks at 158.4 and 163.7 eV in the high-resolution Bi 4f spectrum in Figure 3b correspond to Bi 4f 7/2 and Bi 4f 5/2 , respectively, 38,39 and the small peak at 161.1 eV is attributed to the S2p. 45,46 Figure 3c displays the high-resolution spectrum of S 2p, and the peaks located at 161.2 and 162.4 eV are assigned to S 2p 3/2 and S 2p 1/2 , respectively. 47 Lithium storage properties of the various nanostructured BS-X samples were investigated.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Synthesis of Nanostructured Bismuth Sulfide with Controllable Morphology for Advanced Lithium/Sodium-Ion Storage

et al. 2022

View full text Add to dashboard Cite

Rational design of electrode materials with an excellent structure and morphology is crucial for improving electrochemical properties. Herein, various unique nanostructured Bi 2 S 3 materials with controllable morphology were obtained through a simple and efficient oil bath reaction strategy. Bi 2 S 3 with different morphologies can be obtained by regulating the polarity of solvent, and the lattice spacing can also be adjusted. The Bi 2 S 3 nanomaterials obtained with ethanol as solvent (BS-3) show a three-dimensional nanoflower-like structure assembled with porous layers. The unique structure facilitates the transport of ions and accommodates the volume variation of Bi 2 S 3 during energy storage. Consequently, BS-3 nanoflowers exhibited superior cycling stability and excellent high-rate capability for lithium storage (maintained a high capacity of 923.8 mA h g −1 after 950 cycles at 1.0 A g −1 ) and excellent sodium storage. We provide guidance for precise synthesis and energy storage application of Bi 2 S 3 nanomaterials.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Synthesis of Nanostructured Bismuth Sulfide with Controllable Morphology for Advanced Lithium/Sodium-Ion Storage

et al. 2022

View full text Add to dashboard Cite

show abstract

“…As demonstrated in Figure S8a, the loose and unordered structures were formed because of the slow polymerization speed of the W-PDA precursor, when the proportion of water to ethanol was 1:5. As the proportion of water increased, the uniform nanospheres were formed through the self-polymerization of DA . Remarkably, the hollow-structure nanocomposites were formed when the proportion between water and alcohol was fixed as 1:2.…”

Section: Resultsmentioning

confidence: 99%

“…The self-assembly of DA is essential to construct a hollow nanostructure of the W-PDA precursor. As a result of the weak solubility of the tungsten–dopamine in alcohol, the interface between water (water phase) and alcohol (oil phase) was formed when the hydrophobic groups and hydrophilic groups pointed to water phase and oil phase, respectively . Remarkably, with the assistance of ammonia water, the self-assembly of the DA happened along the water–oil interface in the weak alkaline environment.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Lithium Storage Property Boosted by Hierarchical Hollow-Structure WSe₂ Nanosheets/N, P-Codoped Carbon Nanocomposites

Wang

Zhao

Hao

et al. 2021

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

Developing hierarchical nanostructures composed of transition-metal dichalcogenides and hollow carbon matrixes is one of the attractive avenues in energy storage and conversion field on account of their unique the synergistic effect and stable architecture. Herein, N, P-codoped hollow carbon nanocomposites combined with WSe2 nanosheets were fabricated via a robust strategy including a metal chelation coordination method and high-temperature selenization treatment. Such a typical hollow structure can offer numerous reaction sites and more diffusion paths to accelerate the transport of Li-ions. In addition, the carbon substrate is able to enhance electric conductivity and alleviate the aggregation of the WSe2 nanosheets. As a result, the as-prepared WSe2 nanosheets/N, P-codoped carbon nanocomposites deliver the rate capability of 477 mA h g–1 at 5.0 A g–1. This electrode demonstrates super-durable cyclability after 3000 cycles with the capability of 620 mA h g–1 at 1.0 A g–1. Moreover, the as-prepared sample displays a high-power density (4987.5 W kg–1), high-energy density (125.1 W h kg–1), and impressive cyclic durability, when assembled with activated carbon for hybrid Li-ion capacitors. This work proposes an effective approach to design advanced hierarchical nanostructures in various energy-related applications.

show abstract

“…[ 9,10 ] Besides, some work has demonstrated that metal carbide is a potential lithium storage material with a low diffusion barrier and high theoretical capacity based on the experiment and theoretical calculations. [ 11–16 ] However, aggregation and coarsening of TMCs after the high‐temperature carbonization process usually result in insufficient reaction with lithium ions and restrict its electrocatalytic performance. [ 17–19 ] Therefore, it is urgent to develop an effective method to prepare a small‐size metal carbide structure with appropriate hydrogen adsorption free energy and abundant boundary interfaces for lithium intercalation.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effects in Ultrafine Molybdenum–Tungsten Bimetallic Carbide Hollow Carbon Architecture Boost Hydrogen Evolution Catalysis and Lithium‐Ion Storage

Meng

Zhao

Wang

et al. 2022

Small

Self Cite

View full text Add to dashboard Cite

Constructing hierarchical heterostructures is considered a useful strategy to regulate surface electronic structure and improve the electrochemical kinetics. Herein, the authors develop a hollow architecture composed of MoC1‐x and WC1‐x carbide nanoparticles and carbon matrix for boosting electrocatalytic hydrogen evolution and lithium ions storage. The hybridization of ultrafine nanoparticles confined in the N‐doped carbon nanosheets provides an appropriate hydrogen adsorption free energy and abundant boundary interfaces for lithium intercalation, leading to the synergistically enhanced composite conductivity. As a proof of concept, the as‐prepared catalyst exhibits outstanding and durable electrocatalytic performance with a low overpotential of 103 and 163 mV at 10 mA cm−2, as well as a Tafel slope of 58 and 90 mV dec−1 in alkaline electrolyte and acid electrolyte, respectively. Moreover, evaluated as an anode for a lithium‐ion battery, the as‐resulted sample delivers a rate capability of 1032.1 mA h g−1 at 0.1 A g−1. This electrode indicates superior cyclability with a capability of 679.1 mA h g−1 at 5 A g−1 after 4000 cycles. The present work provides a strategy to design effective and stable bimetallic carbide composites as superior electrocatalysts and electrode materials.

show abstract

Intimately coupled WS2 nanosheets in hierarchical hollow carbon nanospheres as the high-performance anode material for lithium-ion storage

Cited by 47 publications

References 43 publications

Synthesis of Nanostructured Bismuth Sulfide with Controllable Morphology for Advanced Lithium/Sodium-Ion Storage

Synthesis of Nanostructured Bismuth Sulfide with Controllable Morphology for Advanced Lithium/Sodium-Ion Storage

Enhanced Lithium Storage Property Boosted by Hierarchical Hollow-Structure WSe₂ Nanosheets/N, P-Codoped Carbon Nanocomposites

Synergistic Effects in Ultrafine Molybdenum–Tungsten Bimetallic Carbide Hollow Carbon Architecture Boost Hydrogen Evolution Catalysis and Lithium‐Ion Storage

Contact Info

Product

Resources

About

Intimately coupled WS2 nanosheets in hierarchical hollow carbon nanospheres as the high-performance anode material for lithium-ion storage

Cited by 47 publications

References 43 publications

Synthesis of Nanostructured Bismuth Sulfide with Controllable Morphology for Advanced Lithium/Sodium-Ion Storage

Synthesis of Nanostructured Bismuth Sulfide with Controllable Morphology for Advanced Lithium/Sodium-Ion Storage

Enhanced Lithium Storage Property Boosted by Hierarchical Hollow-Structure WSe2 Nanosheets/N, P-Codoped Carbon Nanocomposites

Synergistic Effects in Ultrafine Molybdenum–Tungsten Bimetallic Carbide Hollow Carbon Architecture Boost Hydrogen Evolution Catalysis and Lithium‐Ion Storage

Contact Info

Product

Resources

About

Enhanced Lithium Storage Property Boosted by Hierarchical Hollow-Structure WSe₂ Nanosheets/N, P-Codoped Carbon Nanocomposites