title: Hollow Nanostructured Metal Silicates with Tunable Properties for Lithium Ion Battery Anodes.
abstract: Hollow nanostructured materials have attracted considerable interest as lithium ion battery electrodes because of their good electrochemical properties. In this study, we developed a general procedure for the synthesis of hollow nanostructured metal silicates via a hydrothermal process using silica nanoparticles as templates. The morphology and composition of hollow nanostructured metal silicates could be controlled by changing the metal precursor. The as-prepared hierarchical hollow nanostructures with diameters of ∼100-200 nm were composed of variously shaped primary particles such as hollow nanospheres, solid nanoparticles, and thin nanosheets. Furthermore, different primary nanoparticles could be combined to form hybrid hierarchical hollow nanostructures. When hollow nanostructured metal silicates were applied as anode materials for lithium ion batteries, all samples exhibited good cyclic stability during 300 cycles, as well as tunable electrochemical properties.
authors.affiliation: Center for Nanoparticle Research, Institute for Basic Science , Seoul 151-742, Republic of Korea.
authors.forename: Seung-Ho
authors.initials: SH
authors.lastname: Yu
authors.forename: Bo
authors.initials: B
authors.lastname: Quan
authors.affiliation: Center for Nanoparticle Research, Institute for Basic Science , Seoul 151-742, Republic of Korea.
authors.forename: Aihua
authors.initials: A
authors.lastname: Jin
authors.affiliation: Beamline Department, Pohang Accelerator Laboratory , Pohang 790-784, Republic of Korea.
authors.forename: Kug-Seung
authors.initials: KS
authors.lastname: Lee
authors.affiliation: Department of Chemistry Education and Optoelectronics Convergence Research Center, Chonnam National University , Gwangju 500-757, Republic of Korea.
authors.forename: Soon Hyung
authors.initials: SH
authors.lastname: Kang
authors.affiliation: Center for Nanoparticle Research, Institute for Basic Science , Seoul 151-742, Republic of Korea.
authors.forename: Kisuk
authors.initials: K
authors.lastname: Kang
authors.affiliation: Advanced Institutes of Convergence Technology , Suwon 443-270, Republic of Korea.
authors.forename: Yuanzhe
authors.initials: Y
authors.lastname: Piao
authors.affiliation: Center for Nanoparticle Research, Institute for Basic Science , Seoul 151-742, Republic of Korea.
authors.forename: Yung-Eun
authors.initials: YE
authors.lastname: Sung
keywords: anode material; conversion reaction; hollow nanostructured material; lithium ion battery; metal silicate; nanoparticle