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Nitrogen and sulfur co-doped hierarchical porous carbon as functional sulfur host for lithium-sulfur batteries

文献类型：期刊论文

作者Wang, Biao1,2; Hu, Jinlong1; Zhang, Lingzhi1
刊名MATERIALS TODAY COMMUNICATIONS
出版日期2021-06-01
卷号27页码:7
关键词Polytetrafluoroethylene Copolymerization Heteroatoms-doped carbon Hierarchical pores Lithium-sulfur batteries
DOI10.1016/j.mtcomm.2021.102312
通讯作者Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要Nitrogen and sulfur co-doped hierarchical porous carbon (N, S-HPC) is synthesized by using polyaniline and poly (3,4-ethylenedioxythiophene) as doping sources and polytetrafluoroethylene as the silica template removal agent for lithium-sulfur batteries. N,S-HPC shows the interconnected hierarchical porous network, which enables sulfur to be uniformly dispersed in the carbon matrix thus accelerating the transport of electrons and lithium ions. The S@N,S-HPC composite cathode exhibits a high capacity utilization of 1106 mA h/g at 0.2 C, together with excellent rate capacity of 600 mA h/g at 2 C, and also superior cycle life over 500 cycles with a capacity decay of 0.08 % per cycle at 1 C. The outstanding electrochemical performances for S@N,S-HPC cathode are mainly ascribed to the hierarchical porous structure of carbon and N/S co-doping, which offers sufficient interface for the deposition of solid discharge products and impedes the diffusion of polysulfides due to both physical confinement and chemical interaction by porous carbon matrix and N/S atoms.
WOS关键词MESOPOROUS CARBON ; OXYGEN REDUCTION ; CATHODE MATERIAL ; HIGH-CAPACITY ; FIBER CLOTH ; COMPOSITE ; GRAPHENE ; ELECTROCATALYST ; NANOCOMPOSITE ; MICROSPHERES
资助项目K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000683051700004
出版者ELSEVIER
资助机构K.C. Wong Education Foundation ; National Natural Science Foundation of China
源URL[http://ir.giec.ac.cn/handle/344007/33598]  
专题中国科学院广州能源研究所
通讯作者Zhang, Lingzhi
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, Key Lab Renewable Energy, Guangzhou 215123, Guangdong, Peoples R China
2.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Biao,Hu, Jinlong,Zhang, Lingzhi. Nitrogen and sulfur co-doped hierarchical porous carbon as functional sulfur host for lithium-sulfur batteries[J]. MATERIALS TODAY COMMUNICATIONS,2021,27:7.
APA Wang, Biao,Hu, Jinlong,&Zhang, Lingzhi.(2021).Nitrogen and sulfur co-doped hierarchical porous carbon as functional sulfur host for lithium-sulfur batteries.MATERIALS TODAY COMMUNICATIONS,27,7.
MLA Wang, Biao,et al."Nitrogen and sulfur co-doped hierarchical porous carbon as functional sulfur host for lithium-sulfur batteries".MATERIALS TODAY COMMUNICATIONS 27(2021):7.

入库方式： OAI收割

来源：广州能源研究所

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