Oxygen‐Doped MoS<sub>2</sub> with Expanded Interlayer Spacing for Rapid and Stable Polysulfide Conversion

Lithium-sulfur batteries face challenges such as the polysulfide shuttle effect and sluggish redox kinetics, leading to poor sulfur utilization and limited cyclic stability. Herein, an oxygen-doped engineering approach is presented to achieve pillar-free interlayer extension of MoS<sub>2</sub> (E-MoS<sub>2</sub>) for lithium polysulfide conversion. E-MoS<sub>2</sub> features expanded interlayer spacing (from 0.63 to 0.95 nm), improved conductivity, and an optimized Mo d band center, which collectively enhances polysulfide conversion efficiency. Consequently, cathodes with E-MoS<sub>2</sub> deliver a capacity of 638 mAh g<sup>-1</sup> after 600 cycles at 2 C (0.046% decay/cycle) and an areal capacity of 12.0 mAh cm<sup>-2</sup> under practical conditions (12 mg cm<sup>-2</sup> S loading, E/S = 4 µL mg<sup>-1</sup>). This work highlights interlayer engineering as a key strategy for optimizing MoS<sub>2</sub> catalysts in conversion-type batteries.

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Publication Details

Journal
Advanced Science
Published
2025-04-07
DOI
https://doi.org/10.1002/advs.202502834
Citations
9
Primary Topic
Advanced Battery Materials and Technologies
Type
article
Field-Weighted Citation Impact
6.57

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article

Oxygen‐Doped MoS2 with Expanded Interlayer Spacing for Rapid and Stable Polysulfide Conversion

Jinglin Xian, Kaisi Liu, Qi Liu, Weiyi Yan et al.
9 citations
Advanced Science
Advanced Battery Materials and Technologies
6.57
article

Oxygen‐Doped MoS2 with Expanded Interlayer Spacing for Rapid and Stable Polysulfide Conversion

Jinglin Xian, Kaisi Liu, Qi Liu, Weiyi Yan, Jin‐Lin Yang, Peihua Yang, Jiarui Zhang, Tao Feng, Ruiping Liu, Shunan Zhang
article en
9 citations

Abstract

Lithium-sulfur batteries face challenges such as the polysulfide shuttle effect and sluggish redox kinetics, leading to poor sulfur utilization and limited cyclic stability. Herein, an oxygen-doped engineering approach is presented to achieve pillar-free interlayer extension of MoS<sub>2</sub> (E-MoS<sub>2</sub>) for lithium polysulfide conversion. E-MoS<sub>2</sub> features expanded interlayer spacing (from 0.63 to 0.95 nm), improved conductivity, and an optimized Mo d band center, which collectively enhances polysulfide conversion efficiency. Consequently, cathodes with E-MoS<sub>2</sub> deliver a capacity of 638 mAh g<sup>-1</sup> after 600 cycles at 2 C (0.046% decay/cycle) and an areal capacity of 12.0 mAh cm<sup>-2</sup> under practical conditions (12 mg cm<sup>-2</sup> S loading, E/S = 4 µL mg<sup>-1</sup>). This work highlights interlayer engineering as a key strategy for optimizing MoS<sub>2</sub> catalysts in conversion-type batteries.

Advanced ScienceVol. 12(26)
Nanyang Technological University (SG), China University of Mining and Technology (CN), ShanghaiTech University (CN), Wuhan University (CN), Wuhan Textile University (CN), Anhui Polytechnic University (CN)
National Natural Science Foundation of China, Wuhan University, Anhui Provincial Department of Education, Anhui Polytechnic University, Natural Science Foundation of Anhui Province
Affordable and clean energy
Openalex Percentile: Top 3%
Advanced Battery Materials and Technologies
6.57
DOIOpen Access PDFOpenAlex
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