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Nonaqueous Solvothermal route to SnO2 Nanoparticles

IP.com Disclosure Number: IPCOM000237858D
Publication Date: 2014-Jul-17
Document File: 2 page(s) / 92K

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Abstract

A novel, nonaqueous solvothermal route has been developed for the synthesis of SnO2 nanoparticles using di-n-butyltin dilaurate or tin(IV) tert-butoxide as the precursors and benzylamine, acetophenone, benzyl alcohol, oleic acid, or mixtures thereof as the solvents.

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Nonaqueous Solvothermal route to SnO2 Nanoparticles

Abstract

A novel, nonaqueous solvothermal route has been developed for the synthesis of SnO2 nanoparticles using di-n-butyltin dilaurate or tin(IV) tert-butoxide as the precursors and benzylamine, acetophenone, benzyl alcohol, oleic acid, or mixtures thereof as the solvents.

Account

Interest in nanoparticles is driven by their unique properties. Due to the size dependent properties of metal oxides the controlled synthesis of nanoparticles is an important step for the manufacturing of nanodevices. Tin dioxide is an n-type wide band gap (3.6 eV) semiconductor suitable for various applications. This work reports a typical synthesis of SnO2 nanoparticles via nonaqueous solvothermal route.

All synthesis procedures were carried out in open air or in a glove box. All chemicals were used as received without further purification. Di-n-butyltin dilaurate or tin(IV) tert-butoxide were added to benzylamine, acetophenone, oleic acid or benzyl alcohol in a volume ratio of 1/40, 1/20 or 1/14, the mixture was stirred in a closed glass vial for 10 min. The reaction mixture was transferred into a Teflon cup of 200 mL inner volume, placed in a steel autoclave, and carefully sealed. The autoclave was placed in an oven and heated at 200 oC for 24 hrs. The resulting suspension was centrifuged, the precipitate was thoroughly washed with ethanol, and subsequently dried in air at 60

oC. The dried product was ground using agate mortar a...