Fabrication and synergistic control of ternary TiO2/MoO2@NC hollow spheres for high-performance lithium/sodium-ion batteries anodes

Al‐Ansi, Nabilah; Salah, Abdulwahab; Lin, Jian; Yang, Guo-Duo; Sun, Haizhu; Zhao, Liang

doi:10.1016/j.apenergy.2023.120691

Cited by 28 publications

(6 citation statements)

References 48 publications

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“…Moreover, the C1s spectrum in Figure 4f is divided into four centered peaks at 284.6285.7, 285.9, and 286.3 eV, matching C–C, C–N, C–S, and C–O–Mo, respectively. [ 60,62,65,75–77 ] The XPS analysis reveals notable shifts in the binding energies of the Mo 3d and S 2p peaks in the MoS 2 @CPDs‐2 composite compared to those of individual MoS 2 . Additionally, the C 1s peaks in the composite show lower binding energies in contrast to pure CPDs.…”

Section: Resultsmentioning

confidence: 99%

“…[50,[68][69][70] In addition, the spectrum N 1s in Figure 4d displays the peak at 395.4 eV is belonged to Mo 3P 3/2 [67] and other peaks at 398.1 eV for N pyridinic, 399.3 eV for N pyrrolic, and 400.7 eV for N graphitic. [71][72][73][74] [60,62,65,[75][76][77] The XPS analysis reveals notable shifts in the binding energies of the Mo 3d and S 2p peaks in the MoS 2 @CPDs-2 composite compared to those of individual MoS 2 . Additionally, the C 1s peaks in the composite show lower binding energies in contrast to pure CPDs.…”

Section: Formation Of the Mos 2 @Cpds Nanoflowers Compositementioning

confidence: 99%

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Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Al‐Ansi,

Salah,

Drmosh

et al. 2023

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Despite being one of the most promising materials in anode materials, molybdenum sulfide (MoS2) encounters certain obstacles, such as inadequate cycle stability, low conductivity, and unsatisfactory charge‐discharge (CD) rate performance. In this study, a novel approach is employed to address the drawbacks of MoS2. Carbon polymer dots (CPDs) are incorporated to prepare three‐dimensional (3D) nanoflower‐like spheres of MoS2@CPDs through the self‐assembly of MoS2 2D nanosheets, followed by annealing at 700 °C. The CPDs play a main role in the creation of the nanoflower‐like spheres and also mitigate the MoS2 nanosheet limitations. The nanoflower‐like spheres minimize volume changes during cycling and improve the rate performance, leading to exceptional rate performance and cycling stability in both Lithium‐ion and Sodium‐ion batteries (LIBs and SIBs). The optimized MoS2@CPDs‐2 electrode achieves a superb capacity of 583.4 mA h g−1 at high current density (5 A g−1) after 1000 cycles in LIBs, and the capacity remaining of 302.8 mA h g−1 after 500 cycles at 5 A g−1 in SIBs. Additionally, the full cell of LIBs/SIBs exhibits high capacity and good cycling stability, demonstrating its potential for practical application in fast‐charging and high‐energy storage.

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Section: Resultsmentioning

confidence: 99%

Section: Formation Of the Mos 2 @Cpds Nanoflowers Compositementioning

confidence: 99%

Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Al‐Ansi,

Salah,

Drmosh

et al. 2023

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“…To overcome these aforementioned problems, various rational strategies have been proposed. One strategy is to design and synthesize electrode nanoscale materials with a hierarchical structure by integrating them with conductive carbonaceous materials (graphene, carbon nanotubes, N-doped carbon…), 11,[23][24][25] which has not only great application prospects in alleviating stress-induced structural changes but also reduces ion/e − diffusion routes and improve the electrical conductivity. In this strategy, only with complete and efficient contact with carbonaceous materials, the electrical conductivity of near-surface active materials can be improved.…”

Section: Introductionmentioning

confidence: 99%

Rational design of N-doped C-encapsulated flower-like nickel-based heterostructured microsphere anodes for high-capacity and stable lithium storage

Yu,

Abidin,

Toyong

et al. 2024

Dalton Trans.

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“…Titanium dioxide (TiO 2 ) is known for its excellent structural stability and good rate performance, − making it a promising candidate to be combined with MoO 3 . The combination of MoO 3 and TiO 2 can lead to a strong synergistic effect, in which MoO 3 provides high theoretical capacity and good electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

TiO₂-Coated MoO₃ Nanorods for Lithium/Sodium-Ion Storage

Al-Ansi,

Salah,

et al. 2023

ACS Appl. Nano Mater.

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Molybdenum trioxide (MoO3) shows promise as an anode material for Li/Na-ion batteries due to its low cost and high capacity. However, it suffers from poor cycling stability and volume expansion during charging and discharging, which affects its performance. To overcome these issues, researchers have developed a unique hybrid composite by coating MoO3 nanorods with TiO2, creating MoO3@TiO2 core–shell nanorods. The TiO2 coating significantly improves the composite’s cycling stability, rate capability, and overall electrochemical performance in Li/Na-ion batteries. The optimized electrode (MoO3@TiO2-2) achieves an impressive capacity of 1259.4 mA h g–1 after 500 cycles at 200 mA g–1 and a discharge capacity of 693.3 mA h g–1 after 1000 cycles at 2000 mA g–1 in lithium-ion batteries. In sodium-ion batteries, they show high reversible discharge capacities of 499.1 and 389.3 mA h g–1 after 500 cycles at 100 and 200 mA g–1, respectively. Moreover, even after 1200 cycles at 2 A g–1, the electrode retains a capacity of 300.2 mA h g–1. When combined with an NMC811 cathode in a full-cell Li-ion battery, the composite exhibits excellent cycling performance, lasting over 150 cycles with a capacity of 200 mA h g–1. This research has significant implications for the development of high-performance rechargeable batteries for various electrochemical energy applications.

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Fabrication and synergistic control of ternary TiO2/MoO2@NC hollow spheres for high-performance lithium/sodium-ion batteries anodes

Cited by 28 publications

References 48 publications

Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Rational design of N-doped C-encapsulated flower-like nickel-based heterostructured microsphere anodes for high-capacity and stable lithium storage

TiO₂-Coated MoO₃ Nanorods for Lithium/Sodium-Ion Storage

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Fabrication and synergistic control of ternary TiO2/MoO2@NC hollow spheres for high-performance lithium/sodium-ion batteries anodes

Cited by 28 publications

References 48 publications

Carbonized Polymer Dots for Controlling Construction of MoS2 Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Carbonized Polymer Dots for Controlling Construction of MoS2 Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Rational design of N-doped C-encapsulated flower-like nickel-based heterostructured microsphere anodes for high-capacity and stable lithium storage

TiO2-Coated MoO3 Nanorods for Lithium/Sodium-Ion Storage

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Product

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Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

Carbonized Polymer Dots for Controlling Construction of MoS₂ Flower‐Like Nanospheres to Achieve High‐Performance Li/Na Storage Devices

TiO₂-Coated MoO₃ Nanorods for Lithium/Sodium-Ion Storage