Nitrogen, Oxygen and Cobalt multiple-doped graphitized mesoporous carbon as a cost-effective carbon host with high sulfur content for lithium-sulfur batteries

Xiao, Yinglin1,2,3,4; Zeng, Yi1,2; Zeng, Hongbo1,2; Zhang, Wenjun4; Tian, Bingbing3; Deng, Yonghong1,2

2019-05-30

10.1016/j.jallcom.2019.01.316

JOURNAL OF ALLOYS AND COMPOUNDS   影响因子和分区

0925-8388

1873-4669

The development of facile, inexpensive and large-scale methods to prepare carbon scaffolds with high sulfur content is crucial to the practical applications of Li-S Battery. Herein, Nitrogen, Oxygen and Cobalt multiple-doped graphitized mesoporous carbon sulfur composites (N-O-Co-C/S) with high sulfur content (90%) are developed via inexpensive carbonization methods. The composites exhibit superior performance with a capacity of 610 mAh g(-1) at a current of 0.5 C after 200 cycles and 302 mAh g(-1) at a current of 2 C after 1400 cycles. The superior performance of N-O-Co-C/S composites can be attributed to the enhanced electrical conductivity and ionic conductivity of Co-N-O-C/S composites, which can be supported by electrochemical impedance spectroscopy measurement. The polysulfide-trapping was mainly attributed to the strong O-S, N-S and Co-S interactions, thus improving the e electrochemical performance. (C) 2019 Elsevier B.V. All rights reserved.

Lithium-sulfur batteries Mesoporous carbon Graphitized carbon Multiple-doped

SCI ; EI

英语

第一 ; 通讯

China Post-doctoral Science Foundation[2015 M582401]

Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering

Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000462592500155

ELSEVIER SCIENCE SA

20190906548399

Carbon ; Carbonization ; Cobalt ; Cost effectiveness ; Electrochemical impedance spectroscopy ; Graphitization ; Lithium batteries ; Lithium compounds ; Mesoporous materials ; Nitrogen ; Oxygen ; Scaffolds

Construction Equipment:405.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Primary Batteries:702.1.1 ; Chemistry:801 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Industrial Economics:911.2

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol SUSTech, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, SZU NUS Collaborat Innovat Ctr Optoelect Sci & Te, Shenzhen 518060, Peoples R China
4.City Univ Hong Kong, Dept Phys & Mat Sci, COSDAF, Hong Kong, Peoples R China

Xiao, Yinglin,Zeng, Yi,Zeng, Hongbo,et al. Nitrogen, Oxygen and Cobalt multiple-doped graphitized mesoporous carbon as a cost-effective carbon host with high sulfur content for lithium-sulfur batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,787:1356-1364.

Xiao, Yinglin,Zeng, Yi,Zeng, Hongbo,Zhang, Wenjun,Tian, Bingbing,&Deng, Yonghong.(2019).Nitrogen, Oxygen and Cobalt multiple-doped graphitized mesoporous carbon as a cost-effective carbon host with high sulfur content for lithium-sulfur batteries.JOURNAL OF ALLOYS AND COMPOUNDS,787,1356-1364.

Xiao, Yinglin,et al."Nitrogen, Oxygen and Cobalt multiple-doped graphitized mesoporous carbon as a cost-effective carbon host with high sulfur content for lithium-sulfur batteries".JOURNAL OF ALLOYS AND COMPOUNDS 787(2019):1356-1364.