journal article·2025-06

F‐Free Fabrication Novel 2D Mo‐Based MBene Catalyst for Advanced Lithium–Sulfur Batteries

Jun Pu, Shanshan Fan, Zihan Shen, Jiasen Yin, Yun Tan, Kai Zhang, Bing Wu, Guo Hong, Yagang Yao

Advanced Functional Materials· Volume 35· Issue 25
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Abstract

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

OpenAlex topics: Advanced Battery Materials and Technologies · MXene and MAX Phase Materials · Advancements in Battery Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Functional Molecular Solids Ministry of Education Anhui Provincial Engineering Laboratory for New‐Energy Vehicle Battery Energy‐Storage Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 China

State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China

Emergency Research Institute Chinese Institute of Coal Science (CICS) China Coal Technology & Engineering Group (CCTEG) Beijing 100013 China

Department of Materials Science and Engineering College of Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong SAR 999077 China

Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials Suzhou Institute of Nano‐Tech and Nano‐Bionics Nanchang, Chinese Academy of Sciences Nanchang 330200 China

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Natural Science Research of Jiangsu Higher Education Institutions of China

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