Issue 42, 2013

Green template-free synthesis of SnO2 nanospheres – a physical understanding and electrochemistry

Abstract

Since energy economy and environmental safety are of major concern currently, here we report a simple, greener, template-free synthesis route to prepare tin oxide (SnO2) hollow and solid core nanospheres. The formation and growth mechanisms of such tin oxide nanospheres with solid and hollow cores having sizes of 50 nm–200 nm have been elucidated for the first time in this report. The electrochemistry of such hollow and solid spheres has been investigated against Li/Li+. Tin oxide (without an in situ conductive carbon coating) with a hollow core anode morphology exhibits an outstanding energy density of ∼600 mA h g−1 at a current density of 178 mA g−1. Our electrochemical results and the discussion about hollow and solid core formation mechanisms, indicate the importance of our work and the electrochemical properties indicate that they could be used as anodes for lithium-ion batteries.

Graphical abstract: Green template-free synthesis of SnO2 nanospheres – a physical understanding and electrochemistry

Supplementary files

Article information

Article type
Paper
Submitted
19 Jun 2013
Accepted
07 Aug 2013
First published
12 Aug 2013

RSC Adv., 2013,3, 19423-19429

Green template-free synthesis of SnO2 nanospheres – a physical understanding and electrochemistry

A. M. Tripathi and S. Mitra, RSC Adv., 2013, 3, 19423 DOI: 10.1039/C3RA43060J

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