Promoted conversion of polysulfides by MoO2 inlaid ordered mesoporous carbons towards high performance lithium-sulfur batteries

A MoO2-ordered mesoporous carbon (M-OMC) hybrid was designed as the sulfur host, in which MoO2 is inlaid on the surface of ordered mesoporous carbons that can store active materials and provide fast electron transfer channel due to its ordered pore structure. The MoO2 can effectively prevent the mig...

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Veröffentlicht in:Chinese chemical letters Jg. 30; H. 2; S. 521 - 524
Hauptverfasser: Chen, Yawei, Niu, Shuzhang, Lv, Wei, Zhang, Chen, Yang, Quanhong
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier B.V 01.02.2019
Engineering Laboratory for Functionalized Carbon Materials, Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen,Tsinghua University, Shenzhen 518055, China%Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen 518055, China%School of Marine Science and Technology, Tianjin University, Tianjin 300072, China%School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
Schlagworte:
Catalytic effect
Chemical adsorption
Electron transportation
Lithium-sulfur batteries
Ordered mesoporous carbon
Polysulfides shuttling
Chemical adsorption
Catalytic effect
Lithium-sulfur batteries
Polysulfides shuttling
Electron transportation
Ordered mesoporous carbon
ISSN:1001-8417, 1878-5964
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Zusammenfassung:A MoO2-ordered mesoporous carbon (M-OMC) hybrid was designed as the sulfur host, in which MoO2 is inlaid on the surface of ordered mesoporous carbons that can store active materials and provide fast electron transfer channel due to its ordered pore structure. The MoO2 can effectively prevent the migration of polysulfides through the chemical adsorption and promote the conversion of polysulfides towards Li-sulfur battery. [Display omitted] As polar materials, transition-metal oxides have shown great potentials to improve the adsorption of lithium polysulfides in lithium-sulfur batteries. Herein, a MoO2-ordered mesoporous carbon (M-OMC) hybrid was designed as the sulfur host, in which MoO2 is inlaid on the surface of ordered mesoporous carbons that can store active materials and provide fast electron transfer channel due to its ordered pore structure. The MoO2 can effectively prevent the migration of polysulfides through the chemical adsorption and promote the conversion of polysulfides towards Li-sulfur battery.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2018.04.019