An interwoven carbon nanotubes/cerium dioxide electrocatalyst accelerating the conversion kinetics of lithium sulfide toward high-performance lithium-sulfur batteries

Wen, Gongyu; Shi, Zhihao; Sui, Yulei; Wang, Bingjue; Zhang, Xiaoping; Zhang, Ziwei; Wu, Ling

doi:10.1016/j.jcis.2022.05.086

Cited by 9 publications

(3 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[28][29][30][31] Nevertheless, increasing the weight ratio of bulk metal-based elements in Li-S batteries leads to a decrease in energy density. 9,12,14,30,[32][33][34][35][36][37] Due to their exceptional catalytic characteristics and boosted metal exploitation efficiency, single-atom catalysts (SACs) with fundamentally distributed metal atoms attached to appropriate scaffolds have received significant attention for an extensive variety of energy and chemical conversion processes. [38][39][40] At present, the research and development of SACs for their potential use in lithium-sulfur batteries is still in its early stages.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Samawi,

Salman,

Hasan

et al. 2024

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…28–31 Nevertheless, increasing the weight ratio of bulk metal-based elements in Li–S batteries leads to a decrease in energy density. 9,12,14,30,32–37…”

Section: Introductionmentioning

confidence: 99%

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Samawi,

Salman,

Hasan

et al. 2024

Mol. Syst. Des. Eng.

View full text Add to dashboard Cite

show abstract

“…Hierarchical porous carbon (HPC) material with high conductivity and physical adsorption capability for sulfur species is commonly used as a LiPSs shield in Li–S batteries, which can effectively suppress the shuttle of LiPSs. − Nevertheless, the weak interaction between the nonpolar HPC material and polar LiPSs is generally insufficient and has become a new challenge. In this regard, a core material in the interlayer, such as metal sulfides, as a LiPS conversion reaction accelerator with strong polarities has been a potential choice. − Because of the complex phase transformation of S 8 → Li 2 S, it has been found that single components cannot accelerate the whole “trapping–diffusion–conversion” process. It has been demonstrated that heterostructure design is an effective strategy to solve the above challenges, as heterostructure engineering enables a strong synergistic improvement by all individual components, thus providing overall enhancement in electron transfer, reaction kinetics, and LiPSs constraint. − For example, Xu et al reported a Co 9 S 8 @MoS 2 heterostructure as a robust interlayer that can effectively anchor LiPSs and enhance electron transport .…”

Section: Introductionmentioning

confidence: 99%

SnS/SnS₂ Heterostructures Embedded in Hierarchical Porous Carbon as Polysulfides Immobilizer for High-Performance Lithium–Sulfur Batteries

Ma,

Li,

et al. 2024

Langmuir

View full text Add to dashboard Cite

Driven by the strong adsorptive and catalytic ability of metal sulfides for soluble polysulfides, it is considered as a potential mediator to resolve the problems of shuttle effect and slow reaction kinetics of polysulfides in lithium−sulfur (Li−S) batteries. However, their further development is limited by poor electrical conductivity and bad long-term durability. Herein, one type of new catalyst composed of SnS/SnS 2 heterostructures on hierarchical porous carbon (denoted as SnS/SnS 2 −HPC) by a simple hydrothermal method is reported and used as an interlayer coating on the conventional separator for blocking polysulfides. The SnS/SnS 2 −HPC integrates the advantages of a porous conductive network for promoting the transport of electrons and an enhanced electrocatalyst for accelerating polysulfides conversion. As a result, such a cell coupled with a SnS/SnS 2 −HPC interlayer exhibits a long-term lifespan of 1200 cycles. This work provides a new cell configuration by using heterostructures with a built-in electric field formed from a p-n heterojunction to improve the performance of Li−S batteries.

show abstract

Mo and Ni Coordinated Bimetallic Oxide as Catalyst in Modified Separators for Low‐Capacity Decay Lithium Sulfur Batteries

Dou

Zhao

et al. 2023

ChemNanoMat

View full text Add to dashboard Cite

Lithium-sulfur (LiÀ S) batteries are considered to be the most promising candidates for achieving low-cost, highenergy density systems. The serious shuttle effect of polysulfides (LiPS) and the sluggish redox kinetics have become major obstacles to the practical application of LiÀ S batteries. Herein, a hollow microsphere structure of transition bimetallic oxide nickel molybdate (NiMoO 4 ) was prepared by hydrothermal reaction and calcination method. It was used as a separator coating material to inhibit LiPS shuttle and promote efficient redox conversion of sulfur species. The hollow microsphere structure not only possesses a large internal space to physically confine LiPS but also exposes abundant active sites to enhance the redox kinetics of LiPS. The NiMoO 4 shows superior adsorption ability for LiPS and accelerated ion/electron transport rates compared to NiO, thus facilitating the anchoring-conversion-diffusion processes of polysulfides. Benefiting from this versatility, the LiÀ S batteries with NiMoO 4 -PP exhibit a high discharge specific capacity of 1354.5 mAh g À 1 at 0.1 C. In addition, the battery exhibits excellent cycling stability with a capacity decay rate of 0.027% for 500 cycles at 2 C. These results demonstrate the potential application of NiMoO 4 -based electrocatalysts in high-performance LiÀ S batteries.

show abstract

An interwoven carbon nanotubes/cerium dioxide electrocatalyst accelerating the conversion kinetics of lithium sulfide toward high-performance lithium-sulfur batteries

Cited by 9 publications

References 43 publications

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

SnS/SnS₂ Heterostructures Embedded in Hierarchical Porous Carbon as Polysulfides Immobilizer for High-Performance Lithium–Sulfur Batteries

Mo and Ni Coordinated Bimetallic Oxide as Catalyst in Modified Separators for Low‐Capacity Decay Lithium Sulfur Batteries

Contact Info

Product

Resources

About

An interwoven carbon nanotubes/cerium dioxide electrocatalyst accelerating the conversion kinetics of lithium sulfide toward high-performance lithium-sulfur batteries

Cited by 9 publications

References 43 publications

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

Single-atom cobalt encapsulated in carbon nanotubes as an effective catalyst for enhancing sulfur conversion in lithium–sulfur batteries

SnS/SnS2 Heterostructures Embedded in Hierarchical Porous Carbon as Polysulfides Immobilizer for High-Performance Lithium–Sulfur Batteries

Mo and Ni Coordinated Bimetallic Oxide as Catalyst in Modified Separators for Low‐Capacity Decay Lithium Sulfur Batteries

Contact Info

Product

Resources

About

SnS/SnS₂ Heterostructures Embedded in Hierarchical Porous Carbon as Polysulfides Immobilizer for High-Performance Lithium–Sulfur Batteries