Reversible sodium storage via conversion reaction of a MoS<sub>2</sub>–C composite

Wang, Yunxiao; Seng, Kuok Hau; Chou, Shulei; Wang, Jiazhao; Guo, Zaiping; Wexler, David; Liu, Huan; Dou, Shi Xue

doi:10.1039/c4cc00294f

Cited by 108 publications

(75 citation statements)

References 20 publications

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“…Co-intercalation between graphite and diglymebased electrolyte could also achieve a relatively high capacity of B90 mA h g À 1 and long cycle life 15 . Recent findings have shown that the anode materials for SIBs based on alloy-type (for example, metallic and intermetallic materials [16][17][18][19] ) and conversion-type (for example, sulfides [20][21][22][23] ) exhibited high initial capacity, but suffered from poor cyclability most likely due to the large volume change and the sluggish kinetics. In addition, organic anode materials (for example, Na 2 C 8 H 4 O 4 ) and carboxylate-based materials have been investigated as anode materials for SIBs 24,25 , but the electronic conductivity and cyclability still remain the significant challenge.…”

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confidence: 99%

Na+ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

et al. 2015

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Sodium-ion batteries are emerging as a highly promising technology for large-scale energy storage applications. However, it remains a significant challenge to develop an anode with superior long-term cycling stability and high-rate capability. Here we demonstrate that the Na þ intercalation pseudocapacitance in TiO 2 /graphene nanocomposites enables high-rate capability and long cycle life in a sodium-ion battery. This hybrid electrode exhibits a specific capacity of above 90 mA h g -1 at 12,000 mA g -1 (B36 C). The capacity is highly reversible for more than 4,000 cycles, the longest demonstrated cyclability to date. First-principle calculations demonstrate that the intimate integration of graphene with TiO 2 reduces the diffusion energy barrier, thus enhancing the Na þ intercalation pseudocapacitive process. The Na-ion intercalation pseudocapacitance enabled by tailor-deigned nanostructures represents a promising strategy for developing electrode materials with high power density and long cycle life.

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confidence: 99%

Na+ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

et al. 2015

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“…35,58,[64][65][66] A recent report by Wang et al proved that the exfoliated MoS 2 -C composites exhibit a high capacity nearly 400 mAh g −1 at 0.25 C (100 mA g −1 ) and a long cycle life. 67 Remarkably high capability ∼290 mAh g −1 was also attained at high rate of 5 C. 67 Very recently, Singh et al 35 reported on the fabrication of a freestanding electrode synthesized by using acid treated MoS 2 /Graphene composites for SIB anode applications as shown in Figure 2d. 35 In the hybrid structure, graphene provides stability and superior conductivity networks allowing Na ions to undergo insertion reaction to the TMDCs.…”

Section: Energy Storage Applications Of Transition-metalmentioning

confidence: 99%

Review—Two-Dimensional Layered Materials for Energy Storage Applications

Kumar

Abuhimd

Wahyudi

et al. 2016

ECS J. Solid State Sci. Technol.

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Rechargeable batteries are most important energy storage devices in modern society with the rapid development and increasing demand for handy electronic devices and electric vehicles. The higher surface-to-volume ratio two-dimensional (2D) materials, especially transition metal dichalcogenides (TMDCs) and transition metal carbide/nitrite generally referred as MXene, have attracted intensive research activities due to their fascinating physical/chemical properties with extensive applications. One of the growing applications is to use these 2D materials as potential electrodes for rechargeable batteries and electrochemical capacitors. This review is an attempt to summarize the research and development of TMDCs, MXenes and their hybrid structures in energy storage systems. The strong demand for futuristic energy-storage materials and devices are exceptionally increasing owing to the request of more powerful energy storage systems with excellent power density and better cycle lifetime.1,2 For this reason, serious efforts have been undertaken to improve the electrode performance to achieve significantly improved the capacity, high rate capability and longer cycle life.3 Recently, 2D materials (TMDCs and MXene) have attracted intensive research activities due to their potential for broad applications.4-6 TMDCs represent a family of layered materials MX 2 (where M = one layer of transition metal and X = chalcogens) as shown in Figure 1a. [7][8][9] Figure 1b represents, three main structural polytypes, 1T, 2H and 3R of TMDCs. All three polytypes have layered structures with six fold trigonal prismatic coordination of transition metal atoms by the chalcogens within the TMDC layers. The term 1T, 2H and 3R represents the presence of one (1), two (2) and three (3) layers in the tetragonal (T), hexagonal (H) and rhombohedral (R) unit cell respectively. Interestingly, TMDCs own varied electronic structure, thus possess insulating (HfS 2 ), semi-conducting (MoS 2 , WS 2 ), semi-metallic (VS 2 , TiS 2 ), and superconducting (TaSe 2 , NbSe 2 ) behaviors which make them more attractive. Figure 1c, represents the exfoliation process of bulk TMDCs by lithium, sodium or potassium ion intercalation into the interlayer space and form ion-intercalated compounds, which can be further sonicated in water or organic solvents to produce single/few layer TMDC dispersions. More excitingly, the layers of TMDCs are connected with weak van der Waals interactions which enable them to serve for wide range of energy applications including energy generator, 10 energy storage 11-14 and catalysis. [15][16][17][18][19] On the other hand, MXenes 20 are produced from the MAX phase which is defined with the composition M n+1 AX n , where M = transition metal (i.e. Ti, V, Cr, Nb), A = group A element (i.e. Al, In, Sn, Si), X = carbon/nitrogen, and n = 1-3. Careful inscription of the group-A element from the MAX phase resulting in the production of MXene 20-24 as shown in Figures 1d-1e. One of the most studied applications of these 2D materials is to use t...

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“…The amorphous form of carbon has also been used for templates and matrices for growing the L-TMD [92][93][94][95][96][97][98]. For example, Chang et al [92] developed MoS 2 /amorphous carbon composites using simple hydrothermal process followed by high temperature calcination.…”

Section: Composites Of L-tmd With Various Other Forms Of Carbonmentioning

confidence: 99%

Advancement in Layered Transition Metal Dichalcogenide Composites for Lithium and Sodium Ion Batteries

Yousaf¹,

Mahmood²,

Wang³

et al. 2016

JEE

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Abstract:With an ever increasing energy demand and environmental issues, many state-of-the-art nanostructured electrode materials have been developed for energy storage devices and they include batteries, supercapacitors and fuel cells. Among these electrode materials, L-TMD (layered transition metal dichalcogenide) nanosheets (especially, S (sulfur) and Se (selenium) based dichalcogenides) have received a lot of attention due to their intriguing layered structure for enhanced electrochemical properties. L-TMD composites have recently been investigated not only as a main charge storage specie but also, as a substrate to hold the active specie. This review highlights the recent advancements in L-TMD composites with 0D (0-dimensional), 1D, 2D, 3D and various forms of carbon structures and their potential applications in LIB (lithium ion battery) and SIB (sodium ion battery).

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Reversible sodium storage via conversion reaction of a MoS₂–C composite

Cited by 108 publications

References 20 publications

Na+ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

Na+ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

Review—Two-Dimensional Layered Materials for Energy Storage Applications

Advancement in Layered Transition Metal Dichalcogenide Composites for Lithium and Sodium Ion Batteries

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Reversible sodium storage via conversion reaction of a MoS2–C composite

Cited by 108 publications

References 20 publications

Na+ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

Na+ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

Review—Two-Dimensional Layered Materials for Energy Storage Applications

Advancement in Layered Transition Metal Dichalcogenide Composites for Lithium and Sodium Ion Batteries

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Reversible sodium storage via conversion reaction of a MoS₂–C composite