Interface and electronic structure dual-engineering on MoSe2 with multi-ion/electron transportation channels for boosted sodium-ion half/full batteries

Guo, Jia; Yang, Jun; Guan, Jinpeng; Chen, Xinhe; Zhu, Yan; Fu, Hao; Liu, Quan; Wei, Bo; Geng, Hongbo

doi:10.1016/j.cej.2022.138007

Cited by 61 publications

(29 citation statements)

References 56 publications

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“…The overall chemical reaction formula of Na ions and MoSe 2 can be described as follows: MoSe 2 + 4Na + + 4e – ↔ Mo + 2Na 2 Se. Some works have been demonstrated that the reaction of MoSe 2 with the Na ion is irreversible, , while other works take the opposite view. − In this work, as shown in Figure d, the extended interlayer spacing can provide fast diffusion channels for the Na ions. In addition, the carbon layer sandwiched in the MoSe 2 layer can enhance the electron transfer, accelerating the reaction kinetics, and facilitate the reversibility.…”

Section: Resultsmentioning

confidence: 84%

2D Heterolayer-Structured MoSe₂-Carbon with Fast Kinetics for Sodium-Ion Capacitors

et al. 2023

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Two-dimensional (2D) layered MoSe2 has been demonstrated to be a promising electrode material for new energy storage systems. However, its nature of poor conductivity and the undesirable interlayer spacing hinder its further application. In this paper, a general and simple plasma-enhanced chemical vapor deposition method is proposed to produce 2D heterolayer-structured MoSe2-carbon (MoSe2/C) with carbon atoms inserted in the MoSe2 layers. After morphology optimization, when applying flat-type MoSe2/C-200 nanosheets with an enlarged interlayer spacing of 0.79 nm as the anode and activated carbon as the cathode, the assembled sodium-ion hybrid capacitors can reach a maximum energy/power density of 116.5 W h kg–1/107.5 W kg–1 and exhibit superior cycling durability (91.3% capacitance retention after 4000 cycles at 1 A g–1). The good electrochemical property can be ascribed to the enlarged interlayer spacing that can offer fast diffusion channels for Na ions, and the carbon layer sandwiched in the MoSe2 layer can not only enhance the electron transfer, accelerating the reaction kinetics, but also alleviate the volume change of MoSe2, ensuring the good stability of the electrode. The proposed approach can also be extended to other 2D transition metal chalcogenide (TMC) materials for constructing the TMC/C heterostructures for the application in energy storage systems.

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Section: Resultsmentioning

confidence: 84%

2D Heterolayer-Structured MoSe₂-Carbon with Fast Kinetics for Sodium-Ion Capacitors

et al. 2023

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“…This indicates that the carbon matrix is rich in N, which can provide more active sites and improve the electrochemical reaction rate. 30 In addition, the Mo–N bond at 394.7 eV proves the strong electronic connection formed between MoSe 2 and N-doped carbon (NC). Two twisted circles of Co 2p 3/2 and Co 2p 1/2 are connected by two associative satellite peaks in the Co 2p XPS spectra (Fig.…”

Section: Resultsmentioning

confidence: 99%

Electronic structure manipulation of MoSe₂ nanosheets with fast reaction kinetics toward long-life sodium-ion half/full batteries

Zhang

Dong

et al. 2023

Inorg. Chem. Front.

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“…Similar to other conversion materials, the electrochemical performances of MoSe 2 can be improved by nanocrystallization and compounding with carbon materials. C, N codoped bilayer hollow MoSe 2 nanosheets (BH-MoSe 2 @CNBs) were proposed as anodes for SIBs, 149 where the carbon nanoshell served as support platform to inhibit MoSe 2 agglomeration, and provided a buffer zone to hinder the volume expansion. As a result, BH-MoSe 2 @CNBs exhibited a high specific capacity of 347 mAh g −1 after 1300 cycles at 10 A g −1 .…”

Section: Transition-metal Chalcogenidesmentioning

confidence: 99%

Advanced Anode Materials for Rechargeable Sodium-Ion Batteries

et al. 2023

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Rechargeable sodium-ion batteries (SIBs) have been considered as promising energy storage devices owing to the similar "rocking chair" working mechanism as lithium-ion batteries and abundant and low-cost sodium resource. However, the large ionic radius of the Na-ion (1.07 Å) brings a key scientific challenge, restricting the development of electrode materials for SIBs, and the infeasibility of graphite and silicon in reversible Na-ion storage further promotes the investigation of advanced anode materials. Currently, the key issues facing anode materials include sluggish electrochemical kinetics and a large volume expansion. Despite these challenges, substantial conceptual and experimental progress has been made in the past. Herein, we present a brief review of the recent development of intercalation, conversion, alloying, conversion-alloying, and organic anode materials for SIBs. Starting from the historical research progress of anode electrodes, the detailed Na-ion storage mechanism is analyzed. Various optimization strategies to improve the electrochemical properties of anodes are summarized, including phase state adjustment, defect introduction, molecular engineering, nanostructure design, composite construction, heterostructure synthesis, and heteroatom doping. Furthermore, the associated merits and drawbacks of each class of material are outlined, and the challenges and possible future directions for high-performance anode materials are discussed.

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Interface and electronic structure dual-engineering on MoSe2 with multi-ion/electron transportation channels for boosted sodium-ion half/full batteries

Cited by 61 publications

References 56 publications

2D Heterolayer-Structured MoSe₂-Carbon with Fast Kinetics for Sodium-Ion Capacitors

2D Heterolayer-Structured MoSe₂-Carbon with Fast Kinetics for Sodium-Ion Capacitors

Electronic structure manipulation of MoSe₂ nanosheets with fast reaction kinetics toward long-life sodium-ion half/full batteries

Advanced Anode Materials for Rechargeable Sodium-Ion Batteries

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Interface and electronic structure dual-engineering on MoSe2 with multi-ion/electron transportation channels for boosted sodium-ion half/full batteries

Cited by 61 publications

References 56 publications

2D Heterolayer-Structured MoSe2-Carbon with Fast Kinetics for Sodium-Ion Capacitors

2D Heterolayer-Structured MoSe2-Carbon with Fast Kinetics for Sodium-Ion Capacitors

Electronic structure manipulation of MoSe2 nanosheets with fast reaction kinetics toward long-life sodium-ion half/full batteries

Advanced Anode Materials for Rechargeable Sodium-Ion Batteries

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Product

Resources

About

2D Heterolayer-Structured MoSe₂-Carbon with Fast Kinetics for Sodium-Ion Capacitors

2D Heterolayer-Structured MoSe₂-Carbon with Fast Kinetics for Sodium-Ion Capacitors

Electronic structure manipulation of MoSe₂ nanosheets with fast reaction kinetics toward long-life sodium-ion half/full batteries