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Issue 38, 2013
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Hydrothermal synthesis of SnO2 and SnO2@C nanorods and their application as anode materials in lithium-ion batteries

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Abstract

We report a highly reproducible, large-scale method for the synthesis of SnO2 nanorods with diameters of ∼4–8 nm, and lengths between 50 and 80 nm. The as-synthesized rods are coated with a thin glucose-derived carbon layer to form a core–shell structure. The SnO2 nanorods were tested as negative electrodes in lithium ion batteries exhibiting improved cycling performance due to their nanosize. The carbon-coated sample was thermally treated at a relatively low temperature, i.e. 550 °C. This is because the core–shell structure could not be preserved at a higher temperatures where carbothermal reduction of SnO2 to Sn occurs with a loss of nanostructure. Therefore the resulting SnO2@C sample has a low conductivity. Despite this, we found that the carbon coating stabilizes the electrode, which shows a better cycling performance compared with the non-coated material.

Graphical abstract: Hydrothermal synthesis of SnO2 and SnO2@C nanorods and their application as anode materials in lithium-ion batteries

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Publication details

The article was received on 12 Jun 2013, accepted on 10 Jul 2013 and first published on 10 Jul 2013


Article type: Paper
DOI: 10.1039/C3RA42900H
Citation: RSC Adv., 2013,3, 17281-17286
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    Hydrothermal synthesis of SnO2 and SnO2@C nanorods and their application as anode materials in lithium-ion batteries

    L. Yu, D. Cai, H. Wang and M. Titirici, RSC Adv., 2013, 3, 17281
    DOI: 10.1039/C3RA42900H

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