The synergistic adsorption-catalysis research of highly efficient interlayer constructed from coal fly ash for superior lithium-sulfur batteries

Yu, Fang; Tang, Weiping; Liu, Juemiao; Geng, Mengzi; Yang, Hangqi

doi:10.1016/j.cej.2023.142795

Cited by 8 publications

(6 citation statements)

References 41 publications

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“…Furthermore, even under harsh circumstances (E/S = 7.8 L mg −1 , S loading = 7.5 mg cm −2 ), the cell retains 577 mA h g −1 capacity aer 100 cycles of steady operation. 82 The free shuttle of LiPSs is difficult to avoid in an unmodi-ed separator. 133 It has several larger penetration holes (Fig.…”

Section: Ash-derived Nanomaterials For Batteriesmentioning

confidence: 99%

“…Under the same conditions, however, the prospects for CFA/PE and PE separators are not promising. 82 3.2. Fly ash-derived nanomaterials for supercapacitors Supercapacitors can provide acceptable energy densities and high power, unlike batteries.…”

Section: Ash-derived Nanomaterials For Batteriesmentioning

confidence: 99%

“…23 Researchers used whole CFA modified by ball-milling to prepare light-weight interlayer material for Li–S battery, taking advantage of ash's low density, rich porous structure, and catalytic activity of the metal oxides present in it. 82 FA-derived porous carbon featured a 3D macroporous structure with significant surface area and a large proportion of mesopores (>56.5%). It has a high specific capacitance (522.1 F g −1 at 1.0 A g −1 ) for substantial charge storage in supercapacitor application.…”

Section: Characteristics Of Ashmentioning

confidence: 99%

“…Furthermore, even under harsh circumstances (E/S = 7.8 L mg −1 , S loading = 7.5 mg cm −2 ), the cell retains 577 mA h g −1 capacity after 100 cycles of steady operation. 82…”

Section: Applications Of Ash-derived Nanomaterialsmentioning

confidence: 99%

“…Under the same conditions, however, the prospects for CFA/PE and PE separators are not promising. 82…”

Section: Applications Of Ash-derived Nanomaterialsmentioning

confidence: 99%

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Status of fly ash-derived sustainable nanomaterials for batteries and supercapacitors

Mushtaq,

Wang,

et al. 2024

Sustainable Energy Fuels

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Section: Ash-derived Nanomaterials For Batteriesmentioning

confidence: 99%

Section: Ash-derived Nanomaterials For Batteriesmentioning

confidence: 99%

Section: Characteristics Of Ashmentioning

confidence: 99%

“…Furthermore, even under harsh circumstances (E/S = 7.8 L mg −1 , S loading = 7.5 mg cm −2 ), the cell retains 577 mA h g −1 capacity after 100 cycles of steady operation. 82…”

Section: Applications Of Ash-derived Nanomaterialsmentioning

confidence: 99%

“…Under the same conditions, however, the prospects for CFA/PE and PE separators are not promising. 82…”

Section: Applications Of Ash-derived Nanomaterialsmentioning

confidence: 99%

See 3 more Smart Citations

Status of fly ash-derived sustainable nanomaterials for batteries and supercapacitors

Mushtaq,

Wang,

et al. 2024

Sustainable Energy Fuels

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Ru Single Atom Dispersed on MoS₂/MXene for Enhanced Sulfur Reduction Reaction in Lithium–Sulfur Batteries

Bai,

Nguyen,

Song

et al. 2024

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The high theoretical energy density (2600 Wh kg−1) and low cost of lithium–sulfur batteries (LSBs) make them an ideal alternative for the next‐generation energy storage system. Nevertheless, severe capacity degradation and low sulfur utilization resulting from shuttle effect hinder their commercialization. Herein, Single‐atom Ru‐doped 1T/2H MoS2 with enriched defects decorates V2C MXene (Ru–MoS2/MXene) produced by a new phase‐engineering strategy employed as sulfur host to promote polysulfide adsorption and conversion reaction kinetics. The Ru single atom‐doped adjusts the chemical environment of the MoS2/MXene to anchor polysulfide and acts as an efficient center to motivate the redox reaction. In addition, the rich defects of the MoS2 and ternary boundary among 1T/2H MoS2 and V2C accelerate the charge transfer and ion movements for the reaction. As expected, the Ru–MoS2/MXene/S cathode‐based cell exhibits a high‐rate capability of 684.3 mAh g−1 at 6 C. After 1000 cycles, the Ru–MoS2/MXene/S cell maintains an excellent cycling stability of 696 mAh g−1 at 2 C with a capacity degradation as low as 0.02% per cycle. Despite a high sulfur loading of 9.5 mg cm−2 and a lean electrolyte‐to‐sulfur ratio of 4.3, the cell achieves a high discharge capacity of 726 mAh g−1.

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Graphene Chainmail‐Enabled Moderate Precatalyst Phase Evolution for Sustainable Polysulfide Electrocatalysis in Li─S Batteries

Gu,

Shi,

Yan

et al. 2024

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The rational design of polysulfide electrocatalysts is of vital importance to achieve longevous Li─S batteries. Notwithstanding fruitful advances made in elevating electrocatalytic activity, efforts to regulate precatalyst phase evolution and protect active sites are still lacking. Herein, an in situ graphene‐encapsulated bimetallic model catalyst (CoNi@G) is developed for striking a balance between electrocatalytic activity and stability for sulfur electrochemistry. The layer numbers of directly grown graphene can be dictated by tuning the synthetic duration. Exhaustive experimental and theoretical analysis comprehensively reveals that the tailored graphene chainmail boosts catalytic durability while guaranteeing moderate phase evolution, accordingly attaining a decorated surface sulfidation with advanced catalytic essence. Benefiting from the sustainable polysulfide electrocatalysis, CoNi@G enabled sulfur electrodes to harvest a capacity output of 1276.2 mAh g−1 at 0.2 C and a negligible capacity decay of 0.055% per cycle after 1000 cycles at 1.0 C. Such a maneuver can be readily extended to other metallic catalysts including NiFe, CoFe, or Co. The work elucidates the precatalyst phase evolution mechanism through a controllable graphene‐armored strategy, offering meaningful guidance to realize durable electrocatalysts in Li─S batteries.

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The synergistic adsorption-catalysis research of highly efficient interlayer constructed from coal fly ash for superior lithium-sulfur batteries

Cited by 8 publications

References 41 publications

Status of fly ash-derived sustainable nanomaterials for batteries and supercapacitors

Status of fly ash-derived sustainable nanomaterials for batteries and supercapacitors

Ru Single Atom Dispersed on MoS₂/MXene for Enhanced Sulfur Reduction Reaction in Lithium–Sulfur Batteries

Graphene Chainmail‐Enabled Moderate Precatalyst Phase Evolution for Sustainable Polysulfide Electrocatalysis in Li─S Batteries

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The synergistic adsorption-catalysis research of highly efficient interlayer constructed from coal fly ash for superior lithium-sulfur batteries

Cited by 8 publications

References 41 publications

Status of fly ash-derived sustainable nanomaterials for batteries and supercapacitors

Status of fly ash-derived sustainable nanomaterials for batteries and supercapacitors

Ru Single Atom Dispersed on MoS2/MXene for Enhanced Sulfur Reduction Reaction in Lithium–Sulfur Batteries

Graphene Chainmail‐Enabled Moderate Precatalyst Phase Evolution for Sustainable Polysulfide Electrocatalysis in Li─S Batteries

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Product

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Ru Single Atom Dispersed on MoS₂/MXene for Enhanced Sulfur Reduction Reaction in Lithium–Sulfur Batteries