Preparation of Electro-conductive White Fine Powders Coated with In2O3-Sn Film.

Nagaoka, Shigeru; Yoshimoto, Akihiro; Okazaki, Naomi; Harada, Takashi; Majima, Hiroshi

doi:10.4139/sfj.47.338

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This assumption is supported by the fact that the yield was drastically increased by introduction of air bubbles into the precursor solution. Since dissolution of SnF 2 decreased pH of the solutions, SnF 2 is presumed to be transformed into SnO 3 2through oxidation by oxygen in water as expressed by eq 1, Usually, Sn(OH) 4 is immediately produced from SnO 3 2in acidic water as expressed by eq 2, 25 Here, we directly obtained crystalline SnO 2 instead of Sn(OH) 4 from SnO 3 2in the acidic solutions, whereas the precipitated grains were accompanied with an amorphous phase and water. Rapid precipitation of amorphous Sn(OH) 4 was observed when an oxidizing agent, such as hydrogen peroxide, was added into the precursor solution.…”

Section: Resultsmentioning

confidence: 99%

Evolution of Nanoscale SnO₂ Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Ohgi

Maeda

Hosono

et al. 2005

Crystal Growth & Design

104

View full text Add to dashboard Cite

Hierarchically structured porous particles and films consisting of nanocrystalline SnO 2 were spontaneously grown by gradual oxidation of tin(II) in a simple aqueous system at a low temperature. The nanoscale shape and macroscopically assembled architecture of SnO 2 crystallites were totally controlled by preparation conditions for crystal growth. Spherical and prickly particles exhibiting a high specific surface area in the range of 120-230 m 2 /g were produced by organized growth of nanoscale SnO 2 grains and flakes, respectively. Porous SnO 2 films consisting of the nanograins and nanoflakes were directly grown on a glass substrate through heterogeneous nucleation promoted by addition of urea. Cellular aggregates and films composed of platy subunits were constructed in the solutions under an oxygen-deficient condition. Amorphous and monoxide phases contained in as-deposited particles and films were easily transformed into SnO 2 crystals without deformation of the macroscopic architecture by subsequent hydrothermal treatment at 150 °C in water and calcination at 500 °C in air, respectively. The easyto-handle nanocrystalline SnO 2 with hierarchical and porous architectures would be utilized for various practical applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Evolution of Nanoscale SnO₂ Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Ohgi

Maeda

Hosono

et al. 2005

Crystal Growth & Design

104

View full text Add to dashboard Cite

show abstract

Preparation of Electro-conductive White Fine Powders Coated with In2O3-Sn Film.

Cited by 1 publication

References 0 publications

Evolution of Nanoscale SnO₂ Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Evolution of Nanoscale SnO₂ Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Contact Info

Product

Resources

About

Preparation of Electro-conductive White Fine Powders Coated with In2O3-Sn Film.

Cited by 1 publication

References 0 publications

Evolution of Nanoscale SnO2 Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Evolution of Nanoscale SnO2 Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Contact Info

Product

Resources

About

Evolution of Nanoscale SnO₂ Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions

Evolution of Nanoscale SnO₂ Grains, Flakes, and Plates into Versatile Particles and Films through Crystal Growth in Aqueous Solutions