High Quality MoSe<sub>2</sub>Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Wang, Hui; Wang, Li; Wang, Xiaoyan; Quan, Junjie; Mi, Longfei; Li, Yuan; Li, Guopeng; Zhang, Bin; Zhong, Hao; Jiang, Yang

doi:10.1149/2.0841608jes

Cited by 49 publications

(34 citation statements)

References 52 publications

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“…These two peaks are ascribed to the insertion of sodium ions into the interlayers of MoSe 2 forming Na x MoSe 2 ; and conversion of Na x MoSe 2 to Mo and Na 2 Se with the formation of a solid electrolyte interphase (SEI) film, respectively . In the anodic scanning of the first cycle, the peak at 1.8 V is attributed to the oxidation of Na 2 Se to Se rather than MoSe 2 . As a result, from the second cathodic sweeping, the peak emerging at 1.4 V is corresponding to the conversion reaction from Se to Na 2 Se which is the reason for the peaks difference between the first cathodic scanning and subsequent reduction process.…”

Section: Resultsmentioning

confidence: 96%

Flower‐like MoSe₂/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe₂ as the Anode for High‐Performance Sodium‐Ion Batteries

Lai

et al. 2017

Chemistry A European J

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Sodium-ion batteries (SIBs) have caught considerable attention in last few years owing to the abundance of sodium in comparison to lithium. The commercial graphite anode is demonstrated unsuitable as an anode material for SIBs due to the larger radius of Na ions, whereas the transition metal dichalcogenides (TMDs) show great potential as anodes for SIBs because of their high achievable capacity. The sluggish kinetics, large volume expansion, and aggregation of those materials however results in severe decay of the electrochemical performance. In this work, a flower-like MoSe /C composite is synthesized with ethylenediamine and cassava starch (denoted as MoSe /C ) and designed based on these principles: 1) expand the d-spacing of (0 0 2) planes of MoSe to enhance the kinetics for the intercalation-deintercalation of Na ions and 2) embed MoSe into the carbon matrix to enhance the conductivity and restrict the volume expansion and aggregation of MoSe . As a result, MoSe /C exhibits superior cycle performance and rate capability for sodium storage. It shows durable long-life cycle capability with a reversible capacity of 360 mAh g after 350 cycles at 0.5 Ag . At the current density of 4 Ag , the reversible capacity is still maintained at 266 mAh g .

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Section: Resultsmentioning

confidence: 96%

Flower‐like MoSe₂/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe₂ as the Anode for High‐Performance Sodium‐Ion Batteries

Lai

et al. 2017

Chemistry A European J

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“…Each layer consists of a metal sandwiched between two chalcogen atoms in the form of X‐M‐X. The highly researched members of the family are the Group 6 dichalcogenides, namely MoS 2 , MoSe 2 and WS 2 , owing to their promising potential in many energy‐related applications, particularly for electrochemical hydrogen production, batteries and capacitors . [18–20] Additionally, these materials also offer technological advances in a broader spectrum of applications ranging from electronic, optoelectronic, spintronics, solar cells, sensors, biological, biomedical and even lubrication .…”

Section: Introductionmentioning

confidence: 99%

Cytotoxicity of Exfoliated Layered Vanadium Dichalcogenides

Latiff

Sofer

Fisher

et al. 2016

Chemistry A European J

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Transition-metal Group 5 vanadium dichalcogenides have shown promising properties for many applications, such as batteries, capacitors, electrocatalysts for hydrogen production and many more. However, their toxicological effects have not yet been well understood. Here, we studied the cytotoxicity of exfoliated VS , VSe and VTe by incubating various concentrations of the materials with human lung carcinoma (A549) cells for 24 h and measuring the remaining cell viabilities after the treatment. We found that these vanadium dichalcogenides are relatively more toxic compared to Group 6 transition-metal dichalcogenides (TMDs), namely MoS , WS and WSe . This study is important for a better understanding of the toxicity of TMDs in preparation for their actual commercialisation in the future.

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“…It was found that the MoSe 2 nanospheres could render the high sodium transport rate and also possessed desired electrochemical performance at high current densities. Based on first‐principles simulation, the activation barriers for sodium ion transportation on the surface and interlayer of the MoSe 2 are 0.344 eV and 1.31 eV respectively, indicating the good application of MoSe 2 nanospheres for anode materials of Na ion batteries . Furthermore, in order to achieve synergetic effects, hybridization composites based on 0D TMDs were considered.…”

Section: Applicationsmentioning

confidence: 99%

Emerging 0D Transition‐Metal Dichalcogenides for Sensors, Biomedicine, and Clean Energy

Setyawati

Zou

et al. 2017

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Following research on two-dimensional (2D) transition metal dichalcogenides (TMDs), zero-dimensional (0D) TMDs nanostructures have also garnered some attention due to their unique properties; exploitable for new applications. The 0D TMDs nanostructures stand distinct from their larger 2D TMDs cousins in terms of their general structure and properties. 0D TMDs possess higher bandgaps, ultra-small sizes, high surface-to-volume ratios with more active edge sites per unit mass. So far, reported 0D TMDs can be mainly classified as quantum dots, nanodots, nanoparticles, and small nanoflakes. All exhibited diverse applications in various fields due to their unique and excellent properties. Of significance, through exploiting inherent characteristics of 0D TMDs materials, enhanced catalytic, biomedical, and photoluminescence applications can be realized through this exciting sub-class of TMDs. Herein, we comprehensively review the properties and synthesis methods of 0D TMDs nanostructures and focus on their potential applications in sensor, biomedicine, and energy fields. This article aims to educate potential adopters of these excitingly new nanomaterials as well as to inspire and promote the development of more impactful applications. Especially in this rapidly evolving field, this review may be a good resource of critical insights and in-depth comparisons between the 0D and 2D TMDs.

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High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Cited by 49 publications

References 52 publications

Flower‐like MoSe₂/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe₂ as the Anode for High‐Performance Sodium‐Ion Batteries

Flower‐like MoSe₂/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe₂ as the Anode for High‐Performance Sodium‐Ion Batteries

Cytotoxicity of Exfoliated Layered Vanadium Dichalcogenides

Emerging 0D Transition‐Metal Dichalcogenides for Sensors, Biomedicine, and Clean Energy

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High Quality MoSe2Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Cited by 49 publications

References 52 publications

Flower‐like MoSe2/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe2 as the Anode for High‐Performance Sodium‐Ion Batteries

Flower‐like MoSe2/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe2 as the Anode for High‐Performance Sodium‐Ion Batteries

Cytotoxicity of Exfoliated Layered Vanadium Dichalcogenides

Emerging 0D Transition‐Metal Dichalcogenides for Sensors, Biomedicine, and Clean Energy

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Product

Resources

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High Quality MoSe₂Nanospheres with Superior Electrochemical Properties for Sodium Batteries

Flower‐like MoSe₂/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe₂ as the Anode for High‐Performance Sodium‐Ion Batteries

Flower‐like MoSe₂/C Composite with Expanded (0 0 2) Planes of Few‐layer MoSe₂ as the Anode for High‐Performance Sodium‐Ion Batteries