title: Ultrafine TiO2Confined in Porous-Nitrogen-Doped Carbon from Metal-Organic Frameworks for High-Performance Lithium Sulfur Batteries.
abstract: Ultrafine TiO2confined in porous-nitrogen-doped carbon is synthesized from a single metal-organic framework precursor. As a novel interlayer for lithium-sulfur batteries, the TiO2@NC composite can act as both a high efficiency lithium polysulfide barrier to suppress the side reactions and an additional current collector to enhance the polysulfide redox reactions. The lithium-sulfur battery with a TiO2@NC interlayer delivers a high reversible capacity of 1460 mAh g-1at 0.2 C and capacity retention of 71% even after 500 cycles with high rate capability.
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jinan 250061, P.R. China.
authors.forename: Yongling
authors.initials: Y
authors.lastname: An
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jinan 250061, P.R. China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jinan 250061, P.R. China.
authors.forename: Huifang
authors.initials: H
authors.lastname: Fei
authors.forename: Shenglin
authors.initials: S
authors.lastname: Xiong
authors.forename: Bing
authors.initials: B
authors.lastname: Ji
authors.affiliation: Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University , Jinan 250061, P.R. China.
authors.forename: Jinkui
authors.identifier: http://orcid.org/0000-0002-5683-849X
authors.initials: J
authors.lastname: Feng
keywords: TiO2; interlayer; lithium−sulfur battery; metal−organic framework; nitrogen-doped carbon