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Issue 14, 2014
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119Sn Mössbauer spectroscopy study of the mechanism of lithium reaction with self-organized Ti1/2Sn1/2O2 nanotubes

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Abstract

Novel self-organized Ti1/2Sn1/2O2 nanotubes can be produced by the electrochemical anodization of co-sputtered Ti–Sn thin-films. Combined X-ray photoelectron spectroscopy and 119Sn Mössbauer spectroscopy of pristine samples evidenced the octahedral substitution of Sn4+ for Ti4+ in the TiO2 structure. In addition to the improved lithium storage behaviour of the Ti1/2Sn1/2O2 nanotubes, ex situ119Sn Mössbauer spectroscopy of cycled electrodes has sufficiently confirmed that no decomposition of the Ti1/2Sn1/2O2 structure occurred, and that no Li–Sn phase was formed during the discharge, corroborating that the electrochemical reaction is due exclusively to Li+ insertion into the Ti1/2Sn1/2O2 nanotubes in the 1 ≤ U/V ≤ 2.6 voltage range.

Graphical abstract: 119Sn Mössbauer spectroscopy study of the mechanism of lithium reaction with self-organized Ti1/2Sn1/2O2 nanotubes

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Publication details

The article was received on 18 Mar 2014, accepted on 30 Apr 2014 and first published on 10 Jun 2014


Article type: Communication
DOI: 10.1039/C4NR01500B
Citation: Nanoscale, 2014,6, 7827-7831
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    119Sn Mössbauer spectroscopy study of the mechanism of lithium reaction with self-organized Ti1/2Sn1/2O2 nanotubes

    N. A. Kyeremateng, M.-T. Sougrati, J.-C. Jumas and H. Martinez, Nanoscale, 2014, 6, 7827
    DOI: 10.1039/C4NR01500B

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