One-pot formation of SnO2 hollow nanospheres and α-Fe2O3@SnO2 nanorattles with large void space and their lithium storage properties

Jun Song Chen, Chang Ming Li, Wen Wen Zhou, Qing Yu Yan, Lynden A. Archer, Xiong Wen Lou

Research output: Contribution to journalArticlepeer-review

183 Scopus citations

Abstract

In this work, uniform SnO2 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 α-Fe2O3@SnO2 as an example. Furthermore, the electrochemical lithium storage properties have been investigated. It is found that α-Fe2O3@SnO 2 nanorattles manifest a much lower initial irreversible loss and higher reversible capacity compared to SnO2 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. © The Royal Society of Chemistry 2009.
Original languageEnglish (US)
Pages (from-to)280
JournalNanoscale
Volume1
Issue number2
DOIs
StatePublished - 2009
Externally publishedYes

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