A Nanosheets‐on‐Channel Architecture Constructed from MoS2 and CMK‐3 for High‐Capacity and Long‐Cycle‐Life Lithium Storage

Xu, Xin; Fan, Zhaoyang; Yu, Xin‐Yao; Ding, Shujiang; Yu, Demei; Lou, Xiong Wen David

doi:10.1002/aenm.201400902

Cited by 187 publications

(149 citation statements)

References 39 publications

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“…It can be seen that the MoS2@carbon anode delivers an initial discharge and charge capacities of 1246 and 820 mAh·g −1 , respectively, which are higher than those of the pure MoS2 electrode (i.e., 1100 and 689 mAh·g −1 ) and comparable to the reported MoS2/graphene (i.e., 1160 and 896 mAh·g −1 ) [41]. The initial capacity loss is mainly caused by the irreversible processes such as the inevitable formation of a solid-electrolyte interface (SEI) film on the electrode surface and some side reactions between Li + and active materials [42][43][44][45][46]. The Coulombic efficiency is as high as 67.6% in the first cycle (vs. 62.6% for the pure MoS2), which increases to >98% from the second cycles.…”

Section: Resultssupporting

confidence: 54%

Coaxial MoS2@carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries

Zhou¹,

Wang²,

Liu³

et al. 2017

Preprint

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Abstract:A low-cost bio-mass-derived carbon substrate has been employed to synthesize MoS 2 @carbon composites through a hydrothermal method. Carbon fibers derived from natural cotton provide a three-dimensional and open framework for the uniform growth of MoS 2 nanosheets, thus hierarchically constructing coaxial architecture. The unique structure could synergistically benefit fast Li-ion and electron transport from the conductive carbon scaffold and porous MoS 2 nanostructures. As a result, the MoS 2 @carbon composites-when serving as anodes for Li-ion batteries-exhibit a high reversible specific capacity of 820 mAh·g −1 , high-rate capability (457 mAh·g −1 at 2 A·g −1 ), and excellent cycling stability. The use of bio-mass-derived carbon makes the MoS 2 @carbon composites low-cost and promising anode materials for high-performance Li-ion batteries.

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Section: Resultssupporting

confidence: 54%

Coaxial MoS2@carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries

Zhou¹,

Wang²,

Liu³

et al. 2017

Preprint

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“…121 Besides, the MoS 2 @CMK-3 composite consisting of confined nanosized MoS 2 in the CMK-3 carbon matrix was recently reported. 120,122 The MoS 2 @CMK-3 electrode was able to deliver a high discharge capacity of 934 mA h g À1 after 150 cycles at a current density of 400 mA g À1 . Also, the interplanar space (d-spacing) played a decisive role in lithium ion diffusion in the solid state phase of the MoS 2 anode.…”

Section: Applications In Energy Storage Devicesmentioning

confidence: 99%

Two-dimensional layered MoS₂: rational design, properties and electrochemical applications

Zhang

Liu

et al. 2016

Energy Environ. Sci.

562

331

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The layered molybdenum chalcogenide MoS 2 has attracted wide attention due to its potential electrochemical applications. Based on its unique physical and chemical properties, numerous advances have shown that nanostructured MoS 2 , with the advantages of low cost and outstanding properties, is a promising candidate for environmentally benign energy conversion and storage (ECS) devices.Nowadays, in order to lessen the reliance on fossil fuels, the production of hydrogen from water splitting has become an important issue. Hence, developing catalysts composed of earth-abundant elements that possess activities comparable to those of noble metals is of great urgency. According to DFT calculations in terms of HER free-energy diagrams, MoS 2 could be used as an effective substitute for noble metals. Meanwhile, MoS 2 with various structures has also been applied in the field of energy storage, including batteries and supercapacitors. Additionally, due to their layer-dependent electrical properties, MoS 2 -based electrochemical devices have been applied as sensors for a variety of chemicals.In this review, we summarize recent advances in the development of MoS 2 with high-performance in various electrochemical domains, and recent progress in discovering the mechanisms underlying the enhanced activity. Moreover, we summarize the critical obstacles facing MoS 2 , and discuss strategies for further improving its activity. Lastly, we offer some suggestions on the pathways toward achieving high performance competitive with noble metal counterparts, and perspectives on practical applications of MoS 2 in the future. Broader contextThe development of inexhaustible and clean energy technologies has far-reaching benefits for our society. Owing to its high anisotropy and unique crystal structure, the attractive properties of 2D molybdenum disulfide (MoS 2 ) can be utilized in a variety of energy conversion and storage (ECS) applications. Therefore, understanding how these properties can be tuned and the tunable properties can be utilized becomes increasingly important. In this review, we first summarize recent synthetic strategies toward preparation of MoS 2 with different structures, and its role in several important renewable energy technologies. We then discuss the relationship between the tuned properties and the performance of MoS 2 in different applications, emerging trends during their development, and challenges facing them, offering our perspectives on how to effectively advance the development of MoS 2 -based devices.

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“…Although the volume change of MoS 2 is significantly less than that in silicon-based electrodes, the theoretical 103% volume expansion via the conversion reaction of MoS 2 to Li 2 S and molybdenum will still lead to depressed cycling stability and rate performance [18][19][20][21]. The intrinsically limited conductivity, restacking of MoS 2 nanosheets, side reactions between Li 2 S and electrolyte, and polysulfide dissolution during cycling can further aggravate the degradation of electrochemical performance [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

MoS2/C/C nanofiber with double-layer carbon coating for high cycling stability and rate capability in lithium-ion batteries

Hou

Shen

et al. 2018

Nano Res.

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MoS 2 has attracted a lot of interest in the field of lithium-ion storage as an anode material owing to its high capacity and two-dimensional (2D)-layer structure. However, its electrochemical properties, such as rate capability and cycling stability, are usually limited by its low conductivity, volume variation, and polysulfide dissolution during lithiation/delithiation cycling. Here, a designed two-layer carbon-coated MoS 2 /carbon nanofiber (MoS 2 /C/C fiber) hybrid electrode with a double-layer carbon coating was achieved by a facile hydrothermal and subsequent electrospinning method. The double carbon layer (inner amorphous carbon and outer carbon fiber) shells could efficiently increase the electron conductivity, prevent the aggregation of MoS 2 flakes, and limit the volume change and polysulfide loss during long-term cycling. The as-prepared MoS 2 /C/C fiber electrode exhibited a high capacity of up to 1,275 mAh/g at a current density of 0.2 A/g, 85.0% first cycle Coulombic efficiency, and significantly increased rate capability and cycling stability. These results demonstrate the potential applications of MoS 2 /C/C fiber hybrid material for energy storage and may open up a new avenue for improving electrode energy storage performance by fabricating hybrid nanofiber electrode materials with double-layer carbon coatings.

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A Nanosheets‐on‐Channel Architecture Constructed from MoS₂ and CMK‐3 for High‐Capacity and Long‐Cycle‐Life Lithium Storage

Cited by 187 publications

References 39 publications

Coaxial MoS<sub>2</sub>@carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries

Coaxial MoS<sub>2</sub>@carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries

Two-dimensional layered MoS₂: rational design, properties and electrochemical applications

MoS2/C/C nanofiber with double-layer carbon coating for high cycling stability and rate capability in lithium-ion batteries

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A Nanosheets‐on‐Channel Architecture Constructed from MoS2 and CMK‐3 for High‐Capacity and Long‐Cycle‐Life Lithium Storage

Cited by 187 publications

References 39 publications

Coaxial MoS<sub>2</sub>@carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries

Coaxial MoS<sub>2</sub>@carbon Hybrid Fibers: A Low-Cost Anode Material for High-Performance Li-Ion Batteries

Two-dimensional layered MoS2: rational design, properties and electrochemical applications

MoS2/C/C nanofiber with double-layer carbon coating for high cycling stability and rate capability in lithium-ion batteries

Contact Info

Product

Resources

About

A Nanosheets‐on‐Channel Architecture Constructed from MoS₂ and CMK‐3 for High‐Capacity and Long‐Cycle‐Life Lithium Storage

Two-dimensional layered MoS₂: rational design, properties and electrochemical applications