Iron Hexadecafluorophthalocyanine Nanoparticle/Porous Carbon Composites as Cathode Materials for Li-S Batteries
Xu, Zhanwei (Shaanxi University of Science and Technology)
Niu, Hang (Shaanxi University of Science and Technology)
Zhang, Ying (Shaanxi University of Science and Technology)
Chen, Siyu (Institut Català de Nanociència i Nanotecnologia)
Li, Wenyang (Shaanxi University of Science and Technology)
Li, Jiayin (Shaanxi University of Science and Technology)
Li, Liang (Shaanxi University of Science and Technology)
Shen, Xuetao (Shaanxi University of Science and Technology)

Fecha:	2024
Resumen:	The shuttle behavior and sluggish conversion kinetics of polysulfides (LiPSs) significantly hinder sulfur utilization and cycle stability of lithium-sulfur (Li-S) batteries. Herein, iron hexadecafluorophthalocyanine (FePcF) nanoparticles were in situ tailored on oxidized apple pomace carbon (OAPC) with a 3D porous structure to construct a high-performance FePcF/OAPC sulfur host for advanced Li-S batteries. The designed FePcF nanoparticles have strong adsorption and catalytic conversion capabilities, which can reduce the redox reaction energy barrier, accelerate the conversion rate, and inhibit the LiPS shuttle. Meanwhile, the unique porous structure of OAPC effectively realizes the sulfur accommodation and rapid transport of substances. The average capacities of batteries with FePcF/OAPC were 926. 83, 847. 11, and 782. 63 mA h/g after 500 cycles at 1, 2, and 3C current densities, with capacity decay rates of only 0. 020%, 0. 031%, and 0. 043% per cycle, respectively. Furthermore, it delivers favorable cycling stability at a sulfur load of 4. 32 mg/cm.
Derechos:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	FePcF16/OAPC ; 3D porous structural ; Tailor ; Stability ; Lithium-sulfur batteries
Publicado en:	ACS applied nano materials, Vol. 7, Issue 18 (September 2024) , p. 22052-22060, ISSN 2574-0970

DOI: 10.1021/acsanm.4c04071

Postprint 31 p, 2.1 MB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Nanociència i Nanotecnologia (ICN2)
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