Fluorine-Modulated MXene-Derived Catalysts for Multiphase Sulfur Conversion in Lithium-Sulfur Battery

doi:10.1007/s40820-024-01482-6

IMR OpenIR

	Fluorine-Modulated MXene-Derived Catalysts for Multiphase Sulfur Conversion in Lithium-Sulfur Battery
	Gu, Qinhua 1,2; Cao, Yiqi 1,3; Chen, Junnan 1,2; Qi, Yujie 1; Zhai, Zhaofeng 1; Lu, Ming 1,3; Huang, Nan 1,2; Zhang, Bingsen 1,2
通讯作者	Lu, Ming(luming@jlnu.edu.cn) ; Zhang, Bingsen(bszhang@imr.ac.cn)
	2024-12-01
发表期刊	NANO-MICRO LETTERS
ISSN	2311-6706
卷号	16 期号:1 页码:16
摘要	By introducing fluorine modulation into MXene, a new MXene-derived material TiOF/Ti3C2 was successfully synthesized with a distinctive three-dimensional structure and a tailored F distribution.In situ characterizations and electrochemical analyses demonstrate that TiOF/Ti3C2 catalysts effectively coupled the multiphase sulfur species conversion processes.The investigations reveal that the theoretical basis of the fluorine catalysis in Li-S batteries originated from Lewis acid-base mechanisms and charge compensation mechanisms. Fluorine owing to its inherently high electronegativity exhibits charge delocalization and ion dissociation capabilities; as a result, there has been an influx of research studies focused on the utilization of fluorides to optimize solid electrolyte interfaces and provide dynamic protection of electrodes to regulate the reaction and function performance of batteries. Nonetheless, the shuttle effect and the sluggish redox reaction kinetics emphasize the potential bottlenecks of lithium-sulfur batteries. Whether fluorine modulation regulate the reaction process of Li-S chemistry? Here, the TiOF/Ti3C2 MXene nanoribbons with a tailored F distribution were constructed via an NH4F fluorinated method. Relying on in situ characterizations and electrochemical analysis, the F activates the catalysis function of Ti metal atoms in the consecutive redox reaction. The positive charge of Ti metal sites is increased due to the formation of O-Ti-F bonds based on the Lewis acid-base mechanism, which contributes to the adsorption of polysulfides, provides more nucleation sites and promotes the cleavage of S-S bonds. This facilitates the deposition of Li2S at lower overpotentials. Additionally, fluorine has the capacity to capture electrons originating from Li2S dissolution due to charge compensation mechanisms. The fluorine modulation strategy holds the promise of guiding the construction of fluorine-based catalysts and facilitating the seamless integration of multiple consecutive heterogeneous catalytic processes.
关键词	Catalysis Fluorination MXene Lithium-sulfur battery Shuttle effect
资助者	National Natural Science Foundation of China ; Liaoning Revitalization Talents Program ; Research Fund of Shenyang National Laboratory for Materials Science ; Natural Science Foundation of Jilin Province
DOI	10.1007/s40820-024-01482-6
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51932005] ; National Natural Science Foundation of China[22072164] ; Liaoning Revitalization Talents Program[XLYC1807175] ; Research Fund of Shenyang National Laboratory for Materials Science ; Natural Science Foundation of Jilin Province[YDZJ202301ZYTS280] ; Natural Science Foundation of Jilin Province[YDZJ202201ZYTS305] ; Natural Science Foundation of Jilin Province[YDZJ202401316ZYTS]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001290024300001
出版者	SHANGHAI JIAO TONG UNIV PRESS
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188805
专题	中国科学院金属研究所
通讯作者	Lu, Ming; Zhang, Bingsen
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Jilin Normal Univ, Joint Lab MXene Mat, Key Lab Funct Mat Phys & Chem, Key Lab Preparat Applicat Environm Friendly Mat,Mi, Changchun 130103, Peoples R China
推荐引用方式 GB/T 7714	Gu, Qinhua,Cao, Yiqi,Chen, Junnan,et al. Fluorine-Modulated MXene-Derived Catalysts for Multiphase Sulfur Conversion in Lithium-Sulfur Battery[J]. NANO-MICRO LETTERS,2024,16(1):16.
APA	Gu, Qinhua.,Cao, Yiqi.,Chen, Junnan.,Qi, Yujie.,Zhai, Zhaofeng.,...&Zhang, Bingsen.(2024).Fluorine-Modulated MXene-Derived Catalysts for Multiphase Sulfur Conversion in Lithium-Sulfur Battery.NANO-MICRO LETTERS,16(1),16.
MLA	Gu, Qinhua,et al."Fluorine-Modulated MXene-Derived Catalysts for Multiphase Sulfur Conversion in Lithium-Sulfur Battery".NANO-MICRO LETTERS 16.1(2024):16.