Cobalt-Based Double Catalytic Sites on Mesoporous Carbon as Reversible Polysulfide Catalysts for Fast-Kinetic Li-S Batteries

doi:10.1021/acsami.1c17971

	Cobalt-Based Double Catalytic Sites on Mesoporous Carbon as Reversible Polysulfide Catalysts for Fast-Kinetic Li-S Batteries
	Yang, Zhao 1; Zhao, Zhenyang 2; Zhou, Haoran 2; Cheng, Menghao 2; Yan, Rui 2; Tao, Xuefeng 2; Li, Shuang 3; Liu, Xikui 2; Cheng, Chong 2,4; Ran, Fen 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2021-11-03
卷号	13 期号:43 页码:51174-51185
关键词	lithium-sulfur batteries polysulfide catalytic materials shuttle effects cobalt-based catalysts mesoporous carbon catalysts
ISSN号	1944-8244
DOI	10.1021/acsami.1c17971
英文摘要	Li-S batteries are considered to be the most promising nextgeneration advanced energy-storage systems. However, the sluggish reaction kinetics and the shuttle effect of lithium polysulfides (LiPSs) severely limit their battery performances. To overcome the complex and multiphase sulfur redox chemistry of LiPSs, in this study, we propose a new type of cobalt-based double catalytic sites (DCSs) codoped mesoporous carbon to immobilize and reversibly catalyze the LiPS intermediates in the cycling process, thus eliminating the shuttle effect and improving the charge-discharge kinetics. The theoretical calculation shows that the well-designed DCS configuration endows LiPSs with both strong and weak binding capabilities, which will facilitate the synergistic and reversible catalytic conversion. Furthermore, the experimental results also confirm that the DCS structure shows significantly enhanced catalytic kinetics than the single catalytic sites. The Li-S battery equipped with the DCS structure displays an extremely high discharge capacity of 918 mA h g(-1) at a current density of 0.2 C and can reach a capacity of 867 mA h g(-1) after 200 cycles with an ultralow capacity attenuation rate of 0.028% for each cycle. This study opens new avenues to address the catalytic requirements both in discharging and charging processes.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000715852100052
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/149979]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 2.Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China; 3.Tech Univ Berlin, Dept Chem, Funct Mat, D-10623 Berlin, Germany; 4.Free Univ Berlin, Dept Chem & Biochem, D-14195 Berlin, Germany
推荐引用方式 GB/T 7714	Yang, Zhao,Zhao, Zhenyang,Zhou, Haoran,et al. Cobalt-Based Double Catalytic Sites on Mesoporous Carbon as Reversible Polysulfide Catalysts for Fast-Kinetic Li-S Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(43):51174-51185.
APA	Yang, Zhao.,Zhao, Zhenyang.,Zhou, Haoran.,Cheng, Menghao.,Yan, Rui.,...&Ran, Fen.(2021).Cobalt-Based Double Catalytic Sites on Mesoporous Carbon as Reversible Polysulfide Catalysts for Fast-Kinetic Li-S Batteries.ACS APPLIED MATERIALS & INTERFACES,13(43),51174-51185.
MLA	Yang, Zhao,et al."Cobalt-Based Double Catalytic Sites on Mesoporous Carbon as Reversible Polysulfide Catalysts for Fast-Kinetic Li-S Batteries".ACS APPLIED MATERIALS & INTERFACES 13.43(2021):51174-51185.