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

179 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

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We are grateful to the Nanyang Technological University and to the KAUST-Cornell (KAUST-CU) Center for Energy and Sustainability for financial support.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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