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H2O2 induced formation of graded composition sodium-doped tin dioxide and template-free synthesis of yolk–shell SnO2 particles and their sensing application

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Abstract

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 H2O2–H2O solution and based on 119Sn NMR, XRD, dynamic light scattering (DLS) and electron microscopy studies. Initial studies illuminating sensitive hydrogen sensing by yolk–shell tin oxide particles are presented.

Graphical abstract: H2O2 induced formation of graded composition sodium-doped tin dioxide and template-free synthesis of yolk–shell SnO2 particles and their sensing application

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Publication details

The article was received on 21 Aug 2017, accepted on 05 Nov 2017 and first published on 06 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03104A
Citation: Dalton Trans., 2017, Advance Article
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    H2O2 induced formation of graded composition sodium-doped tin dioxide and template-free synthesis of yolk–shell SnO2 particles and their sensing application

    A. A. Mikhaylov, A. G. Medvedev, T. A. Tripol'skaya, V. S. Popov, A. S. Mokrushin, D. P. Krut'ko, P. V. Prikhodchenko and O. Lev, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT03104A

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