Influences of reaction factors on the nano-sized tin oxide powder by spray pyrolysis process

Yu, Jae Keun; Kim, Dong Hee

doi:10.2109/jcersj2.117.1078

Cited by 10 publications

(6 citation statements)

References 15 publications

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“…Also, indium oxide powder with average particle size of below 50 nm is manufactured from indium chloride solution, 7) nano-sized ITO powder is manufactured from indium-tin chloride solution 8) and nano-sized tin oxide powder is manufactured from tin chloride solution. [9][10] However, the spray pyrolysis method has not been applied to the manufacturing of nano-sized nickel oxide powder, while its applications for catalysis, removal of dye, semiconductor materials and magnetic materials are expanding rapidly.…”

Section: )mentioning

confidence: 99%

Fabrication of the Nano-Sized Nickel Oxide Powder by Spray Pyrolysis Process

Yu¹,

남궁현²,

Kim³

2012

Korean. J. Mater. Res.

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This study involves using nickel chloride solution as a raw material to produce nano-sized nickel oxide powder with average particle size below 50 nm by the spray pyrolysis reaction. The influence of the inflow speed of raw material solution on the properties of the produced powder is examined. When the inflow speed of the raw material solution is at 2 ml/min., the average particle size of the powder is 15~25 nm and the particle size distribution is relatively uniform. When the inflow speed of the solution increases to 10 ml/min., the average particle size of the powder increases to about 25 nm and the particle size distribution becomes much more uneven. When the inflow speed of the solution increases to 20 ml/min., the average particle size of the powder increases in comparison to the case in which the inflow speed of the solution was 10 ml/min. However, the particle size distribution is very uneven, showing various particle size distributions ranging from 10 nm to 70 nm. When the inflow speed of solution increases to 50 ml/min., the average particle size of the powder decreases in comparison to the case in which the inflow speed was 20 ml/min., and the particle size distribution shows more evenness. As the inflow speed of the solution increases from 2 ml/min. to 20 ml/min., the XRD peak intensities gradually increase, while the specific surface area decreases. When the inflow speed of solution increases to 50 ml/min., the XRD peak intensities rather decrease, while the specific surface area increases.Key words nickel chloride solution, nano-sized nickel oxide powder, average particle size, spray pyrolysis, properties of the powder.

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Section: )mentioning

confidence: 99%

Fabrication of the Nano-Sized Nickel Oxide Powder by Spray Pyrolysis Process

Yu¹,

남궁현²,

Kim³

2012

Korean. J. Mater. Res.

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“…In general, methods of producing minute metallic oxide can largely be classified into the following methods: dry processing method(solid state reaction method), 1) wet process method 2) and spray pyrolysis method. [3][4][5][6][7][8][9][10] In order to produce high quality functional powder, in general the component ingredients are evenly mixed in a solution to produce a complex acid solution, followed by solidating the acid solution in a reactor referred to as the spray pyrolysis method which is known to be significantly effective. This method not only eliminates the process of mixing solid powder, performing the reaction based on calcination, and grinding to produce powder, but also has the advantage in that the particle characteristics can be controlled based on the pyrolysis conditions and contains little possibility of mixing with impurities.…”

Section: Introductionmentioning

confidence: 99%

Application of Spray Pyrolysis Process for the Preparation of Nano Sized Cobalt Oxide Powder

Kim¹,

Seo²,

Yu³

2014

Korean Journal of Materials Research

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In this study, nano-sized cobalt oxide powder with an average particle size below 50 nm was prepared from a cobalt chloride solution by the spray pyrolysis process. The influences of reaction temperature on the properties of the generated powder were examined. The average particle size of the particles formed based on the spray pyrolysis process at a reaction temperature of 700 o C is roughly 20 nm. Moreover, most of these particles cannot appear with an independent type, thereby coexisting in a droplet type. When the reaction temperature increases to 800 o C, the average particle size not only increases to roughly 40 nm but also shows a more dense structure while the ratio of particles which shows a polygonal form significantly increases. As the reaction temperature increases to 900 o C, the distribution of the particles is from roughly 70 nm to 100 nm, while most of the particle surface is more intricately close and forms a polygonal shape. When the reaction temperature increases to 1000 o C, the particle size distribution of the powder shows an existing form from 80 nm to at least 150 nm in an uneven form. As the reaction temperature increases, the XRD peak intensity gradually increases, yet the specific surface area gradually decreases.

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“…Spray pyrolysis process [1][2][3][4][5][6][7][8][9][10][11] was one of the methods of manufacturing nano-sized metal oxide powder. In this reaction, chemical components are uniformly blended in the solution state so as to make a complex solution, which was in turn sprayed into a reaction furnace with a high temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nozzle Tip Size on the Fabrication of Nano-Sized Nickel Oxide Powder by Spray Pyrolysis Process

Kim¹,

Yu²

2013

Korean. J. Mater. Res.

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In this study, by using nickel chloride solution as a raw material, a nano-sized nickel oxide powder with an average particle size below 50 nm was produced by spray pyrolysis reaction. A spray pyrolysis system was specially designed and built for this study. The influence of nozzle tip size on the properties of the produced powder was examined. When the nozzle tip size was 1 mm, the particle size distribution was more uniform than when other nozzle tip sizes were used and the average particle size of the powder was about 15 nm. When the nozzle tip size increases to 2 mm, the average particle size increases to roughly 20 nm, and the particle size distribution becomes more uneven. When the tip size increases to 3 mm, particles with an average size of 25 nm and equal to or less than 10 nm coexist and the particle size distribution becomes much more uneven. When the tip size increases to 5 mm, large particles with average size of 50 nm partially exist, mostly consisting of minute particles with average sizes in the range of 15~25 nm. When the tip size increases from 1 mm to 2 mm, the XRD peak intensities greatly increase while the specific surface area decreases. When the tip size increases to 3 mm, the XRD peak intensities decrease while the specific surface area increases. When the tip size increases to 5 mm, the XRD peak intensities increase again while the specific surface area decreases.

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Influences of reaction factors on the nano-sized tin oxide powder by spray pyrolysis process

Cited by 10 publications

References 15 publications

Fabrication of the Nano-Sized Nickel Oxide Powder by Spray Pyrolysis Process

Fabrication of the Nano-Sized Nickel Oxide Powder by Spray Pyrolysis Process

Application of Spray Pyrolysis Process for the Preparation of Nano Sized Cobalt Oxide Powder

Effect of Nozzle Tip Size on the Fabrication of Nano-Sized Nickel Oxide Powder by Spray Pyrolysis Process

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