Nitrogen and oxygen dual-doped hollow carbon nanospheres derived from catechol/polyamine as sulfur hosts for advanced lithium sulfur batteries

Peng, Yueying; Zhou, Yiyong; Huang, Jianxing; Wang, Yunhui; Li, He; Hwang, Bing‐Joe; Zhao, Jinbao

doi:10.1016/j.carbon.2017.08.035

Cited by 82 publications

(43 citation statements)

References 61 publications

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“…The heteroatoms with lone pairs act as lewis base and it interacts with Li (Lewis acid) during charge discharge process that helps to anchor polysulfides. The O and N functional groups synergically contribute to improve the performance of Li−S battery along with the high surface area of the carbon material . The morphology and microstructure of the PC and PCSCs were investigated in detail by SEM and TEM which is presented in Figure and 7 respectively.…”

Section: Resultsmentioning

confidence: 99%

Sulfur‐Immobilized Nitrogen and Oxygen Co–Doped Hierarchically Porous Biomass Carbon for Lithium‐Sulfur Batteries: Influence of Sulfur Content and Distribution on Its Performance

Chulliyote

Hareendrakrishnakumar

Raja

et al. 2017

ChemistrySelect

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Hierarchically porous carbon with inherently doped heteroatoms and the quantity of active material (sulfur) confined within this carbon matrix play a major role for the high performance of Li−S batteries. Herein, we discuss the influence of sulfur content and distribution onto the N and O co‐doped hierarchically porous biomass carbon matrix (PC) to achieve high specific capacitance and cycling stability. Sulfur encapsulated PC was prepared from an eco‐friendly source with a high surface area of 2065 m2 g−1 and a pore volume of 1.5 cm3 g−1. PC with 54, 68 & 73% of sulfur content (PCSCs) have been investigated as cathode materials for Li−S battery. PC with 54% sulfur displayed better performance with an initial discharge capacity of 1606 mA h g−1 and a cycling stability of 1269 mA h g−1 at 0.1C rate after 100 cycles due to better dispersion of sulfur in the porous architecture. The higher cycling stability of PCSC (54%) is due to the N and O co‐doped hierarchical porous carbon layers, enhancing the sulfur utilization ratio and mitigating the polysulfide shuttle during the cycling process.

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Section: Resultsmentioning

confidence: 99%

Sulfur‐Immobilized Nitrogen and Oxygen Co–Doped Hierarchically Porous Biomass Carbon for Lithium‐Sulfur Batteries: Influence of Sulfur Content and Distribution on Its Performance

Chulliyote

Hareendrakrishnakumar

Raja

et al. 2017

ChemistrySelect

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“…Although physically confining sulfur in the pore channels of HPCM could increase the sulfur utilization, the weak interaction between the nonpolar carbon and polar polysulfides is not enough to effectively immobilize polysulfides on the carbon surface. Doping heteroatom (e.g., N or S) into the skeleton of carbon materials is thus developed as a convenient method to enhance the chemisorption between polysulfides and carbon hosts . Xiao and co‐workers synthesized the N‐doped HPCS (N‐HPCS) with different pore sizes of 4.1, 3.2, and 2.8 nm by using porous silica particles as the hard templates and polydopamine as the carbon precursor .…”

Section: Sulfur Cathodes Based On Hollow Porous Carbon Materialsmentioning

confidence: 99%

Recent Advances in Hollow Porous Carbon Materials for Lithium–Sulfur Batteries

Wang

Pei

et al. 2019

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Lithium–sulfur (Li–S) batteries are considered as one of the most potential next‐generation rechargeable batteries due to their high theoretical energy density. However, some critical issues, such as low capacity, poor cycling stability, and safety concerns, must be solved before Li–S batteries can be used practically. During the past decade, tremendous efforts have been devoted to the design and synthesis of electrode materials. Benefiting from their tunable structural parameters, hollow porous carbon materials (HPCM) remarkably enhance the performances of both sulfur cathodes and lithium anodes, promoting the development of high‐performance Li–S batteries. Here, together with the templated synthesis of HPCM, recent progresses of Li–S batteries based on HPCM are reviewed. Several important issues in Li–S batteries, including sulfur loading, polysulfide entrapping, and Li metal protection, are discussed, followed by a summary on recent research on HPCM‐based sulfur cathodes, modified separators, and lithium anodes. After the discussion on emerging technical obstacles toward high‐energy Li–S batteries, prospects for the future directions of HPCM research in the field of Li–S batteries are also proposed.

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“…Numerous methods have been investigated to address the polysulfide shuttle effect from different aspects in terms of sulfur host [9], binder [10], separator [11], and electrolyte [12]. Among those electrode engineering strategies, physically blocking the free diffusion of polysulfides by using a mesoporous conductive carbon host [13][14][15] or encapsulating sulfur in a hollow carbon sphere [16][17][18] has been widely reported. Chemically binding and stabilizing LiPSs on a polar host surface is more effective in reducing the shuttle effect.…”

Section: Introductionmentioning

confidence: 99%

3-D Edge-Oriented Electrocatalytic NiCo ₂ S ₄ Nanoflakes on Vertical Graphene for Li-S Batteries

Bernussi

et al. 2021

Energy Mater Adv

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Polysulfide shuttle effect, causing extremely low Coulombic efficiency and cycling stability, is one of the toughest challenges hindering the development of practical lithium sulfur batteries (LSBs). Introducing catalytic nanostructures to stabilize the otherwise soluble polysulfides and promote their conversion to solids has been proved to be an effective strategy in attacking this problem, but the heavy mass of catalysts often results in a low specific energy of the whole electrode. Herein, by designing and synthesizing a free-standing edge-oriented NiCo2S4/vertical graphene functionalized carbon nanofiber (NCS/EOG/CNF) thin film as a catalytic overlayer incorporated in the sulfur cathode, the polysulfide shuttle effect is largely alleviated, revealed by the enhanced electrochemical performance measurements and the catalytic function demonstration. Different from other reports, the NiCo2S4 nanosheets synthesized here have a 3-D edge-oriented structure with fully exposed edges and easily accessible in-plane surfaces, thus providing a high density of active sites even with a small mass. The EOG/CNF scaffold further renders the high conductivity in the catalytic structure. Combined, this novel structure, with high sulfur loading and high sulfur fraction, leads to high-performance sulfur cathodes toward a practical LSB technology.

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Nitrogen and oxygen dual-doped hollow carbon nanospheres derived from catechol/polyamine as sulfur hosts for advanced lithium sulfur batteries

Cited by 82 publications

References 61 publications

Sulfur‐Immobilized Nitrogen and Oxygen Co–Doped Hierarchically Porous Biomass Carbon for Lithium‐Sulfur Batteries: Influence of Sulfur Content and Distribution on Its Performance

Sulfur‐Immobilized Nitrogen and Oxygen Co–Doped Hierarchically Porous Biomass Carbon for Lithium‐Sulfur Batteries: Influence of Sulfur Content and Distribution on Its Performance

Recent Advances in Hollow Porous Carbon Materials for Lithium–Sulfur Batteries

3-D Edge-Oriented Electrocatalytic NiCo ₂ S ₄ Nanoflakes on Vertical Graphene for Li-S Batteries

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Nitrogen and oxygen dual-doped hollow carbon nanospheres derived from catechol/polyamine as sulfur hosts for advanced lithium sulfur batteries

Cited by 82 publications

References 61 publications

Sulfur‐Immobilized Nitrogen and Oxygen Co–Doped Hierarchically Porous Biomass Carbon for Lithium‐Sulfur Batteries: Influence of Sulfur Content and Distribution on Its Performance

Sulfur‐Immobilized Nitrogen and Oxygen Co–Doped Hierarchically Porous Biomass Carbon for Lithium‐Sulfur Batteries: Influence of Sulfur Content and Distribution on Its Performance

Recent Advances in Hollow Porous Carbon Materials for Lithium–Sulfur Batteries

3-D Edge-Oriented Electrocatalytic NiCo 2 S 4 Nanoflakes on Vertical Graphene for Li-S Batteries

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Resources

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3-D Edge-Oriented Electrocatalytic NiCo ₂ S ₄ Nanoflakes on Vertical Graphene for Li-S Batteries