title: Three-Dimensional Nanoporous Graphene-Carbon Nanotube Hybrid Frameworks for Confinement of SnS2 Nanosheets: Flexible and Binder-Free Papers with Highly Reversible Lithium Storage.
abstract: The practical applications of transition-metal dichalcogenides for lithium-ion batteries are severely inhibited by their inferior structural stability and electrical conductivity, which can be solved by optimizing these materials to nanostructures and confining them within conductive frameworks. Thus, we report a facile approach to prepare flexible papers with SnS2 nanosheets (SnS2 NSs) homogeneously dispersed and confined within the conductive graphene-carbon nanotube (CNT) hybrid frameworks. The confinement of SnS2 NSs in graphene-CNT matrixes not only can effectively prevent their aggregation during the discharge-charge procedure, but also can assist facilitating ion transfer across the interfaces. As a result, the optimized SGC papers give an improved capacity of 1118.2 mA h g(-1) at 0.1 A g(-1) along with outstanding stability. This report demonstrates the significance of employing graphene-CNT matrixes for confinement of various active materials to fabricate flexible electrode materials.
authors.affiliation: State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, People's Republic of China.
authors.forename: Longsheng
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, People's Republic of China.
authors.forename: Yunpeng
authors.initials: Y
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, People's Republic of China.
authors.forename: Youfang
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Fan
authors.affiliation: State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, People's Republic of China.|State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Tianxi
authors.initials: T
authors.lastname: Liu
keywords: SnS2 nanosheets; carbon nanotubes; confinement; flexible anodes; graphene; lithium-ion batteries