H2O2 induced formation of graded composition sodium-doped tin dioxide and template-free synthesis of yolk-shell SnO2 particles and their sensing applicationElectronic supplementary information (ESI) available: Additional experimental data. See DOI: 10.1039/c7dt03104a

Sodium peroxostannate nanoparticles with graded composition were produced from aqueous hydrogen peroxide-sodium hydroxostannate solution. The uniform particles were converted to composition graded sodium stannate by mild thermal treatment for peroxide decomposition and yielded yolk-shell tin dioxide...

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Main Authors Mikhaylov, Alexey A, Medvedev, Alexander G, Tripol'skaya, Tatiana A, Popov, Victor S, Mokrushin, Artem S, Krut'ko, Dmitry P, Prikhodchenko, Petr V, Lev, Ovadia
Format Journal Article
LanguageEnglish
Published 28.11.2017
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Summary:Sodium peroxostannate nanoparticles with graded composition were produced from aqueous hydrogen peroxide-sodium hydroxostannate solution. The uniform particles were converted to composition graded sodium stannate by mild thermal treatment for peroxide decomposition and yielded yolk-shell tin dioxide particles by dilute acid treatment. The mechanism of formation of the graded sodium concentration is explained in view of the solubility of peroxostannate in H 2 O 2 -H 2 O solution and based on 119 Sn NMR, XRD, dynamic light scattering (DLS) and electron microscopy studies. Initial studies illuminating sensitive hydrogen sensing by yolk-shell tin oxide particles are presented. This article introduces a SnO 2 yolk-shell synthesis protocol based on hydrogen peroxide sol-gel processing.
Bibliography:Electronic supplementary information (ESI) available: Additional experimental data. See DOI
10.1039/c7dt03104a
ISSN:1477-9226
1477-9234
DOI:10.1039/c7dt03104a