title: SnO(2) nanorod-planted graphite: an effective nanostructure configuration for reversible lithium ion storage.
abstract: We report a novel architecture of SnO(2) nanorod-planted graphite particles for an efficient Li ion storage material that can be prepared by a simple catalyst-assisted hydrothermal process. Rectangular-shaped SnO(2) nanorods are highly crystalline with a tetragonal rutile phase and distributed uniformly over the surface of micrometer-sized graphite particles. In addition, the size dimensions of grown SnO(2) nanorods can be controlled by varying the synthesis conditions. The diameter can be engineered to a sub-100 nm range, and the length can be controlled to up to several hundred nanometers. Significantly, the SnO(2) nanorod-planted graphite demonstrates an initial Li ion storage capacity of about 1010 mAh g(-1) during the first cycle. Also, these SnO(2)-graphite composites show high Coulombic efficiency and cycle stability in comparison with SnO(2) nanomaterials that are not combined with graphite. The enhanced electrochemical properties of SnO(2) nanorod-planted graphite, as compared with bare SnO(2) materials, inspire better design of composite materials with effective nanostructural configurations for advanced electrodes in lithium ion batteries.
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, South Korea.
authors.forename: Jong Guk
authors.initials: JG
authors.lastname: Kim
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Nam
authors.forename: Sang Ho
authors.initials: SH
authors.lastname: Lee
authors.forename: Sung Mook
authors.initials: SM
authors.lastname: Choi
authors.forename: Won Bae
authors.initials: WB
authors.lastname: Kim
mesh_terms: D003460:Crystallization / Q000379:methods; D006108:Graphite / Q000737:chemistry*; D007477:Ions; D008094:Lithium / Q000737:chemistry* / Q000302:isolation & purification*; D008422:Materials Testing; D036103:Nanotechnology / Q000379:methods; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D007477:Ions; D017971:Tin Compounds; D006108:Graphite; D008094:Lithium; C045358:stannic oxide