title: Simple Synthesis of Nanocrystalline Tin Sulfide/N-Doped Reduced Graphene Oxide Composites as Lithium Ion Battery Anodes.
abstract: Composites of nitrogen-doped reduced graphene oxide (NRGO) and nanocrystalline tin sulfides were synthesized, and their performance as lithium ion battery anodes was evaluated. Following the first cycle the composite consisted of Li2S/LixSn/NRGO. The conductive NRGO cushions the stress associated with the expansion of lithiation of Sn, and the noncycling Li2S increases the residual Coulombic capacity of the cycled anode because (a) Sn domains in the composite formed of unsupported SnS2expand only by 63% while those in the composite formed of unsupported SnS expand by 91% and (b) Li percolates rapidly at the boundary between the Li2S and LixSn nanodomains. The best cycling SnS2/NRGO-derived composite retained a specific capacity of 562 mAh g-1at the 200th cycle at 0.2 A g-1rate.
authors.affiliation: Department of Chemical Engineering and Department of Chemistry, Center for Electrochemistry, University of Texas at Austin , 1 University Station, C0400 Austin, Texas 78712-0231, United States.
authors.forename: Duck Hyun
authors.initials: DH
authors.lastname: Youn
authors.affiliation: Department of Chemistry and the Institute for Computational Engineering and Sciences, University of Texas at Austin , Austin, Texas 78712-0165, United States.
authors.forename: Shannon K
authors.initials: SK
authors.lastname: Stauffer
authors.affiliation: Department of Chemistry and the Institute for Computational Engineering and Sciences, University of Texas at Austin , Austin, Texas 78712-0165, United States.
authors.forename: Penghao
authors.initials: P
authors.lastname: Xiao
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, 790-784, South Korea.
authors.forename: Hunmin
authors.initials: H
authors.lastname: Park
authors.affiliation: Department of Chemical Engineering and Department of Chemistry, Center for Electrochemistry, University of Texas at Austin , 1 University Station, C0400 Austin, Texas 78712-0231, United States.
authors.forename: Yejin
authors.initials: Y
authors.lastname: Nam
authors.affiliation: Texas Materials Institute, University of Texas at Austin , Austin, Texas 78712-1591, United States.
authors.forename: Andrei
authors.initials: A
authors.lastname: Dolocan
authors.affiliation: Department of Chemistry and the Institute for Computational Engineering and Sciences, University of Texas at Austin , Austin, Texas 78712-0165, United States.
authors.forename: Graeme
authors.identifier: 0000-0002-0336-7153
authors.initials: G
authors.lastname: Henkelman
authors.affiliation: Department of Chemical Engineering and Department of Chemistry, Center for Electrochemistry, University of Texas at Austin , 1 University Station, C0400 Austin, Texas 78712-0231, United States.
authors.forename: Adam
authors.initials: A
authors.lastname: Heller
authors.affiliation: Department of Chemical Engineering and Department of Chemistry, Center for Electrochemistry, University of Texas at Austin , 1 University Station, C0400 Austin, Texas 78712-0231, United States.|Texas Materials Institute, University of Texas at Austin , Austin, Texas 78712-1591, United States.
authors.forename: C Buddie
authors.initials: CB
authors.lastname: Mullins
keywords: SnS; SnS2; lithium ion battery anode; reduced graphene oxide