title: One-pot formation of SnO2 hollow nanospheres and alpha-Fe2O3@SnO2 nanorattles with large void space and their lithium storage properties.
abstract: In this work, uniform SnO(2) hollow nanospheres with large void space have been synthesized by a modified facile method. The void space can be easily controlled by varying the reaction time. The formation of interior void space is based on an inside-out Ostwald ripening mechanism. More importantly, this facile one-pot process can be extended to fabricate rattle-type hollow structures using alpha-Fe(2)O(3)@SnO(2) as an example. Furthermore, the electrochemical lithium storage properties have been investigated. It is found that alpha-Fe(2)O(3)@SnO(2) nanorattles manifest a much lower initial irreversible loss and higher reversible capacity compared to SnO(2) hollow spheres. This interesting finding supports a general hypothesis that a synergistic effect between functional core and shell materials can lead to improved lithium storage capabilities.
authors.affiliation: School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore.
authors.forename: Jun Song
authors.initials: JS
authors.lastname: Chen
authors.forename: Chang Ming
authors.initials: CM
authors.lastname: Li
authors.forename: Wen Wen
authors.initials: WW
authors.lastname: Zhou
authors.forename: Qing Yu
authors.initials: QY
authors.lastname: Yan
authors.forename: Lynden A
authors.initials: LA
authors.lastname: Archer
authors.forename: Xiong Wen
authors.initials: XW
authors.lastname: Lou