MOF-Enhanced Sulfur-Containing Polymer for Boosting Lithium-Ion Diffusion in Lithium–Sulfur Battery DOI
Ruohan Liu, Haoyan Cheng,

Wenhao Tai

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Language: Английский

Unveiling the Curvature‐Dependent Electrocatalytic Kinetics for Sulfur Redox Reaction in Li‐S Chemistry DOI Open Access
Kechen Wang, Yang Wang, Jun Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract Lithium‐sulfur (Li‐S) batteries have suffered from serious “shuttle effect” and sluggish kinetic of sulfur redox reaction (SRR). Herein, we focus on the circumferential strain engineering tailoring single‐atom catalysts (SACs) for fast SRR in Li‐S batteries. A distinguish coaxial V‐doped MoS 2 @CNTs (V‐MoS @CNTs) heterostructure with uniform biaxial is developed as platform to unveil curvature‐dependent electrocatalytic kinetics SRR. Both experimental results theoretical calculations show that this not only benefits interaction between cathodes LiPSs, but also dynamically strengthens by a modified d‐band structure dual‐metal active sites, i.e., V Mo. Consequently, V‐MoS strong exhibit discharge capacity 1202 mAh cm −2 at 0.5 C fading 0.052% 1 C, while an outstanding rate performance 796 g −1 5 C. In addition, high area 3.2 maintained after 65 cycles 0.1 loading 3.7 mg . The strategy work deepens understanding impact curving SRR, provides feasible way scale‐up synthesis high‐performance SACs tunable activities.

Language: Английский

Citations

1
F‐Free Fabrication Novel 2D Mo‐Based MBene Catalyst for Advanced Lithium–Sulfur Batteries DOI Open Access
Jun Pu, Shanshan Fan, Zihan Shen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Abstract An efficient electrocatalytic medium is very important for lithium–sulfur (Li–S) batteries. Herein, as a novel MBene‐based material, 2D MoB employed to facilitate the catalytic conversion of lithium polysulfides (LiPSs). Instead HF etching technology previous MXene, accordion‐like MoB‐based MBene adopts hydrothermal‐assisted process. Its F‐free surface property prevents harm negative sulfur cathode from −F terminations. The high charge conductivity and abundant active sites promote adsorption‐transfer LiPSs on accelerate redox kinetics. Theoretical calculation, visual detection in situ Raman results show that stratified MoB‐coated separator inhibits “shuttle effect” soluble through coupling physical chemical mechanisms. Therefore, this work achieves commendable stability 847 mAh g −1 reversible capacity (2.0 C) 0.0651% attenuation rate per cycle (4.0 C). area 4.93 cm −2 still obtained under loading. More importantly, has uncovered great potential promising catalyst reaction species.

Language: Английский

Citations

1
Advanced Characterization Techniques for Probing Redox Reaction Mechanisms in High‐Performance Li–S Batteries DOI Creative Commons
Shilin Chen, Chengwei Ma, Zhongming Li

et al.

Carbon Neutralization, Journal Year: 2025, Volume and Issue: 4(2)

Published: Feb. 19, 2025

ABSTRACT The development of high‐performance energy storage systems requires several key attributes, including high and power density, cost‐effectiveness, safety, environmental sustainability. Among the various potential technologies, lithium–sulfur batteries stand out as a promising contender for future solutions due to their exceptional theoretical specific density (2600 Wh kg⁻¹) relatively capacity (1675 mAh g⁻¹). However, commercialization faces significant challenges, such low sulfur loading, rapid degradation, poor cycling stability. At heart these issues lies limited understanding complex conversion chemistry involved in batteries. In recent years, progress has been made elucidating reaction mechanisms, thanks use both ex situ characterization techniques. Methods optical spectroscopy, time‐of‐flight secondary ion mass spectrometry, synchrotron X‐ray, neural network analysis have demonstrated great uncovering redox processes lithium polysulfides underlying significantly advancing research battery systems. This review focuses on major advancements research, particularly study electrocatalytic mechanisms using emerging We discuss aspects accurately revealing through advanced diagnostic methods, well main challenges techniques face. Finally, we explore prospects commercialization.

Language: Английский

Citations

1
Synergetic catalysis of bimetallic sites in CoNi alloys in-situ encapsulated N-doped CNTs to accelerate sulfur redox kinetics for lithium-sulfur batteries DOI

Jia Li,

Guixiang Zhong,

Jingyi Zhou

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152791 - 152791

Published: June 5, 2024

Language: Английский

Citations

7
Peripheral group-induced spin-state switch of metal macrocyclic molecule for enhanced redox kinetics in lithium-sulfur batteries DOI
Yu Wang, Kai Guo, Weijie Chen

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 491, P. 151990 - 151990

Published: May 10, 2024

Language: Английский

Citations

5
Defect-rich porous graphitic phase carbon nitride layer grafted MXene as desolvation promoter for efficient sulfur conversion in extremely harsh conditions DOI
Jinxin Wang, Yinze Zuo, Yongzheng Zhang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 671, P. 692 - 701

Published: May 10, 2024

Language: Английский

Citations

5
Design of electronic conductive covalent-organic frameworks and their opportunities in lithium batteries DOI
Yunyu Zhao,

Ya Fang Han,

Yingjian Yu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154997 - 154997

Published: Aug. 19, 2024

Language: Английский

Citations

5
Density Functional Theory Studies on Tuning p-Band Electronic Structures of TiS2-Based Single-Atom Catalysts for Polysulfide Conversion in Lithium–Sulfur Batteries DOI
J. H. Chen,

Jinze Zhong,

Siqi Liu

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(13), P. 15344 - 15353

Published: June 21, 2024

Despite extensive investigation, the utilization of sulfur and cycling stability lithium–sulfur (Li–S) batteries are significantly impeded by polysulfide shuttle effect sluggish reaction kinetics. In this study, aimed at enhancing performance Li–S batteries, we focus on implementation single metal atom (Be, Mg, Ca, V, Nb, Ta)-doped TiS2 monolayers as cathode catalysts. Our findings reveal that Be-TiS2, Mg-TiS2, Ca-TiS2 exhibit superior adsorption capabilities lower values for rate-determining step in terms Gibbs free energy. Electronic structure analysis further elucidates enhanced anchoring electrocatalytic activities stem from upward displacement p-band center narrowing gap within Δd-p-band, respectively. Moreover, Be-TiS2 facilitate acceleration Li2S decomposition Li-ion migration their surfaces. This investigation effectively advances our understanding role conversion process offers valuable insights into design cathodes batteries.

Language: Английский

Citations

4
Enhanced Basal-Plane Catalytic Activity of MoS2 by Constructing an Electron Bridge for High-Performance Lithium–Sulfur Batteries DOI

Genlin Liu,

Tianran Yan,

Y. H. Zhang

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

MoS

Language: Английский

Citations

4
Polyvinylimidazolium/polyacrylonitrile nanofiber separator with enhanced polysulfide adsorption toward durable lithium–sulfur batteries DOI

Ping Feng,

Chenxiao Lin, Fang Chen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159329 - 159329

Published: Jan. 1, 2025

Language: Английский

Citations

0