Large-scale synthesis of ITO nanoparticles in an alcohol system assisted by acids

Large-scale synthesis of ITO nanoparticles in an alcohol system assisted by acids

Co-precipitation of indium and tin salts in aqueous media followed by heat treatment of the products provides a versatile route to obtain tin-doped indium oxide (ITO) nanopowders in large quantities. However, the high temperature treatment that is needed to obtain well-crystallized powders provokes...

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Veröffentlicht in:New journal of chemistry 2014, Vol.38 (8), p.3421-3428
Hauptverfasser: Cuya Huaman, Jhon L., Tanoue, Koji, Miyamura, Hiroshi, Matsumoto, Takatoshi, Jeyadevan, Balachandran
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container_end_page 3428
container_issue 8
container_start_page 3421
container_title New journal of chemistry
container_volume 38
creator Cuya Huaman, Jhon L.
Tanoue, Koji
Miyamura, Hiroshi
Matsumoto, Takatoshi
Jeyadevan, Balachandran
description Co-precipitation of indium and tin salts in aqueous media followed by heat treatment of the products provides a versatile route to obtain tin-doped indium oxide (ITO) nanopowders in large quantities. However, the high temperature treatment that is needed to obtain well-crystallized powders provokes particle growth through sintering and leads to poor dispersibility. In this study, ITO nanoparticles (NPs) were obtained by dehydration of the (In, Sn) hydroxide precursor and subsequent crystallization of the same in acidified 2-octanol solution under atmospheric conditions and at low reaction temperature, 180 °C. This process yields grams of well-dispersed ITO nanoparticles with an average size of ∼5 nm and a tin content of ∼10%. In addition, pellets made of ITO nanoparticles and annealed at 200 °C under vacuum exhibited a conductivity of 1.3 Ω cm.
doi_str_mv 10.1039/C4NJ00061G
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title Large-scale synthesis of ITO nanoparticles in an alcohol system assisted by acids
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