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

Alexey A. Mikhaylov, Alexander G. Medvedev, Tatiana A. Tripol'Skaya, Victor S. Popov, Artem S. Mokrushin, Dmitry P. Krut'Ko, Petr V. Prikhodchenko*, Ovadia Lev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

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.

Original languageAmerican English
Pages (from-to)16171-16179
Number of pages9
JournalDalton Transactions
Volume46
Issue number46
DOIs
StatePublished - 2017

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2017.

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