Embedding Sulfur in MOF‐Derived Microporous Carbon Polyhedrons for Lithium–Sulfur Batteries

Wu, Hao Bin; Wei, Shuya; Zhang, Lei; Xu, Rong; Hng, Huey Hoon; Lou, Xiong Wen David

doi:10.1002/chem.201301689

Cited by 362 publications

(218 citation statements)

References 53 publications

(19 reference statements)

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“…Due to their permanent nanoscale cavities and open channels, which are similar to mesoporous silicas and zeolites, MOFs exhibit a strong potential for use as templates and reactive precursors for synthesizing nanoporous carbon materials 28,29 . In addition, research has continuously focused on preparing metal oxides through the direct calcination of various MOFs [30][31][32] . However, no attention has been given to the creation of high-level heteroatomdoped carbon materials through direct pyrolysis of MOFs, which contain heteroatoms in their organic components, such as phosphorus, boron, sulfur and nitrogen [33][34][35] .…”

mentioning

confidence: 99%

High lithium anodic performance of highly nitrogen-doped porous carbon prepared from a metal-organic framework

2014

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Theoretical and experimental results have revealed that the lithium-ion storage capacity for nitrogen-doped graphene largely depends on the nitrogen-doping level. However, most nitrogen-doped carbon materials used for lithium-ion batteries are reported to have a nitrogen content of approximately 10 wt% because a higher number of nitrogen atoms in the two-dimensional honeycomb lattice can result in structural instability. Here we report nitrogen-doped graphene particle analogues with a nitrogen content of up to 17.72 wt% that are prepared by the pyrolysis of a nitrogen-containing zeolitic imidazolate framework at 800°C under a nitrogen atmosphere. As an anode material for lithium-ion batteries, these particles retain a capacity of 2,132 mA h g À 1 after 50 cycles at a current density of 100 mA g À 1 , and 785 mAh g À 1 after 1,000 cycles at 5 A g À 1 . The remarkable performance results from the graphene analogous particles doped with nitrogen within the hexagonal lattice and edges.

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mentioning

confidence: 99%

High lithium anodic performance of highly nitrogen-doped porous carbon prepared from a metal-organic framework

2014

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“…The major stream of Li-S research has focused on the design "inside" the cathode, confining sulfur within various kinds of porous matrixes, such as porous carbon [10][11][12][13][14][15][16] or graphene [17][18][19], or applying surface coatings of conductive polymer [20][21] or metal oxides such as TiO2 [22] or Al2O3 [23] to act as a physical barrier to prevent the soluble polysulfides from dissolving in the organic electrolyte.…”

mentioning

confidence: 99%

Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium–sulfur batteries

Wang

Zhang

Chen

et al. 2015

Carbon

171

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Guo, Z. (2015). Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium-sulfur batteries. Carbon, 81 782-787.Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium-sulfur batteries AbstractA novel type of one-dimensional ordered mesoporous carbon fiber has been prepared via the electrospinning technique by using resol as the carbon source and triblock copolymer Pluronic F127 as the template. Sulfur is then encapsulated in this ordered mesoporous carbon fibers by a simple thermal treatment. The interwoven fibrous nanostructure has favorably mechanical stability and can provide an effective conductive network for sulfur and polysulfides during cycling. The ordered mesopores can also restrain the diffusion of long-chain polysulfides. The resulting ordered mesoporous carbon fiber sulfur (OMCF-S) composite with 63% S exhibits high reversible capacity, good capacity retention and enhanced rate capacity when used as cathode in rechargeable lithium-sulfur batteries. The resulting OMCF-S electrode maintains a stable discharge capacity of 690 mAh/g at 0.3 C, even after 300 cycles. ABSTRACT:A novel type of one-dimensional ordered mesoporous carbon fiber has been prepared via the electrospinning technique by using resol as the carbon source and triblock copolymer Pluronic F127 as the template. Sulfur is then encapsulated in this ordered mesoporous carbon fibers by a simple thermal treatment. The interwoven fibrous nanostructure has favorably mechanical stability and can provide an effective conductive network for sulfur and polysulfides during cycling. The ordered mesopores can also restrain the diffusion of long-chain polysulfides. The resulting ordered mesoporous carbon fiber sulfur (OMCF-S) composite with 63% S exhibits high reversible capacity, good capacity retention and enhanced rate capacity when used as cathode in rechargeable lithium-sulfur batteries. The resulting OMCF-S electrode maintains a stable discharge capacity of 690 mAh/g at 0.3 C, even after 300 cycles.

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“…For the first time, they introduced different allotropes of sulfur molecules (small sulfur molecules and cyclo-S 8 ) into microporous and mesoporous structures. The [124,[134][135][136][137][138][139]. Microporous structure plays an important role in the formation of small sulfur molecules.…”

Section: A Confined Sulfur Molecules In Microporous Structuresmentioning

confidence: 99%

“…To confine the sulfur, a variety of microporous carbon hosts have been developed, such as nitrogen-doped microporous carbon, subnanometer 2D graphene, microporous structure carbon nanotubes, and pyrolyzed polymer derived carbon [140][141][142]. Lou et al [134] employed novel metal-organic-framework (MOF), ZIF-8, to develop a microporous carbon host for sulfur cathodes. The highly ordered structure of MOFs with confined pores is favorable for the synthesis of microporous carbon materials.…”

Section: A Confined Sulfur Molecules In Microporous Structuresmentioning

confidence: 99%

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

Yang

Adair

et al. 2018

Electrochem. Energ. Rev.

310

198

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Lithium-sulfur (Li-S) batteries have been considered as one of the most promising energy storage devices that have the potential to deliver energy densities that supersede that of state-of-the-art lithium ion batteries. Due to their high theoretical energy density and cost-effectiveness, Li-S batteries have received great attention and have made great progress in the last few years. However, the insurmountable gap between fundamental research and practical application is still a major stumbling block that has hindered the commercialization of Li-S batteries. This review provides insight from an engineering point of view to discuss the reasonable structural design and parameters for the application of Li-S batteries. Firstly, a systematic analysis of various parameters (sulfur loading, electrolyte/sulfur (E/S) ratio, discharge capacity, discharge voltage, Li excess percentage, sulfur content, etc.) that influence the gravimetric energy density, volumetric energy density and cost is investigated. Through comparing and analyzing the statistical information collected from recent Li-S publications to find the shortcomings of Li-S technology, we supply potential strategies aimed at addressing the major issues that are still needed to be overcome. Finally, potential future directions and prospects in the engineering of Li-S batteries are discussed.

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Embedding Sulfur in MOF‐Derived Microporous Carbon Polyhedrons for Lithium–Sulfur Batteries

Cited by 362 publications

References 53 publications

High lithium anodic performance of highly nitrogen-doped porous carbon prepared from a metal-organic framework

High lithium anodic performance of highly nitrogen-doped porous carbon prepared from a metal-organic framework

Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium–sulfur batteries

Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application

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