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Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide
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Zeitschriftentitel: | Journal of the American Ceramic Society |
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In: | Journal of the American Ceramic Society, 101, 2018, 2, S. 509-514 |
Format: | E-Article |
Sprache: | Englisch |
veröffentlicht: |
Wiley
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Schlagwörter: |
author_facet |
Tsuyumoto, Isao Tsuyumoto, Isao |
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author |
Tsuyumoto, Isao |
spellingShingle |
Tsuyumoto, Isao Journal of the American Ceramic Society Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide Materials Chemistry Ceramics and Composites |
author_sort |
tsuyumoto, isao |
spelling |
Tsuyumoto, Isao 0002-7820 1551-2916 Wiley Materials Chemistry Ceramics and Composites http://dx.doi.org/10.1111/jace.15250 <jats:title>Abstract</jats:title><jats:p>A hexagonal form of tungsten trioxide (h‐WO<jats:sub>3</jats:sub>, particle size: 15.9‐57.1 nm) was found to be formed by a direct reaction between metallic tungsten powder (W, particle size: 0.45‐0.59 μm) and 15%‐30% hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) aq solution. Oxide film on the powder surface having the similar crystal structure as h‐WO<jats:sub>3</jats:sub> was essential for the formation, and the surface oxide film was formed by aging the powder in air at 45°C, a relative humidity of 100% (<jats:italic>P</jats:italic><jats:sub>H2O</jats:sub> 96 hPa) for 3‐28 days or in ambient atmosphere at room temperature for 12 years. The Rietveld analysis performed in the space group <jats:italic>P</jats:italic>6<jats:sub>3</jats:sub>/<jats:italic>mcm</jats:italic> (<jats:italic>Z</jats:italic> = 6) indicated the crystal structures were the same as those of the reported h‐WO<jats:sub>3</jats:sub> and that the crystallographic characteristic was as follows: <jats:italic>a</jats:italic> = 0.74219 nm, <jats:italic>c</jats:italic> = 0.77198 nm for h‐WO<jats:sub>3</jats:sub> from the 28‐day aged powder, and <jats:italic>a</jats:italic> = 0.74538 nm, <jats:italic>c</jats:italic> = 0.77194 nm for h‐WO<jats:sub>3</jats:sub> from the 12‐year aged powder.</jats:p> Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide Journal of the American Ceramic Society |
doi_str_mv |
10.1111/jace.15250 |
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Online |
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Chemie und Pharmazie Technik |
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ElectronicArticle |
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DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 DE-D275 DE-Bn3 DE-Brt1 DE-D161 |
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Wiley, 2018 |
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Wiley, 2018 |
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0002-7820 1551-2916 |
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0002-7820 1551-2916 |
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2018 |
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Wiley |
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Journal of the American Ceramic Society |
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title |
Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_unstemmed |
Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_full |
Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_fullStr |
Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_full_unstemmed |
Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_short |
Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_sort |
facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
topic |
Materials Chemistry Ceramics and Composites |
url |
http://dx.doi.org/10.1111/jace.15250 |
publishDate |
2018 |
physical |
509-514 |
description |
<jats:title>Abstract</jats:title><jats:p>A hexagonal form of tungsten trioxide (h‐WO<jats:sub>3</jats:sub>, particle size: 15.9‐57.1 nm) was found to be formed by a direct reaction between metallic tungsten powder (W, particle size: 0.45‐0.59 μm) and 15%‐30% hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) aq solution. Oxide film on the powder surface having the similar crystal structure as h‐WO<jats:sub>3</jats:sub> was essential for the formation, and the surface oxide film was formed by aging the powder in air at 45°C, a relative humidity of 100% (<jats:italic>P</jats:italic><jats:sub>H2O</jats:sub> 96 hPa) for 3‐28 days or in ambient atmosphere at room temperature for 12 years. The Rietveld analysis performed in the space group <jats:italic>P</jats:italic>6<jats:sub>3</jats:sub>/<jats:italic>mcm</jats:italic> (<jats:italic>Z</jats:italic> = 6) indicated the crystal structures were the same as those of the reported h‐WO<jats:sub>3</jats:sub> and that the crystallographic characteristic was as follows: <jats:italic>a</jats:italic> = 0.74219 nm, <jats:italic>c</jats:italic> = 0.77198 nm for h‐WO<jats:sub>3</jats:sub> from the 28‐day aged powder, and <jats:italic>a</jats:italic> = 0.74538 nm, <jats:italic>c</jats:italic> = 0.77194 nm for h‐WO<jats:sub>3</jats:sub> from the 12‐year aged powder.</jats:p> |
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author | Tsuyumoto, Isao |
author_facet | Tsuyumoto, Isao, Tsuyumoto, Isao |
author_sort | tsuyumoto, isao |
container_issue | 2 |
container_start_page | 509 |
container_title | Journal of the American Ceramic Society |
container_volume | 101 |
description | <jats:title>Abstract</jats:title><jats:p>A hexagonal form of tungsten trioxide (h‐WO<jats:sub>3</jats:sub>, particle size: 15.9‐57.1 nm) was found to be formed by a direct reaction between metallic tungsten powder (W, particle size: 0.45‐0.59 μm) and 15%‐30% hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) aq solution. Oxide film on the powder surface having the similar crystal structure as h‐WO<jats:sub>3</jats:sub> was essential for the formation, and the surface oxide film was formed by aging the powder in air at 45°C, a relative humidity of 100% (<jats:italic>P</jats:italic><jats:sub>H2O</jats:sub> 96 hPa) for 3‐28 days or in ambient atmosphere at room temperature for 12 years. The Rietveld analysis performed in the space group <jats:italic>P</jats:italic>6<jats:sub>3</jats:sub>/<jats:italic>mcm</jats:italic> (<jats:italic>Z</jats:italic> = 6) indicated the crystal structures were the same as those of the reported h‐WO<jats:sub>3</jats:sub> and that the crystallographic characteristic was as follows: <jats:italic>a</jats:italic> = 0.74219 nm, <jats:italic>c</jats:italic> = 0.77198 nm for h‐WO<jats:sub>3</jats:sub> from the 28‐day aged powder, and <jats:italic>a</jats:italic> = 0.74538 nm, <jats:italic>c</jats:italic> = 0.77194 nm for h‐WO<jats:sub>3</jats:sub> from the 12‐year aged powder.</jats:p> |
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imprint | Wiley, 2018 |
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spelling | Tsuyumoto, Isao 0002-7820 1551-2916 Wiley Materials Chemistry Ceramics and Composites http://dx.doi.org/10.1111/jace.15250 <jats:title>Abstract</jats:title><jats:p>A hexagonal form of tungsten trioxide (h‐WO<jats:sub>3</jats:sub>, particle size: 15.9‐57.1 nm) was found to be formed by a direct reaction between metallic tungsten powder (W, particle size: 0.45‐0.59 μm) and 15%‐30% hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) aq solution. Oxide film on the powder surface having the similar crystal structure as h‐WO<jats:sub>3</jats:sub> was essential for the formation, and the surface oxide film was formed by aging the powder in air at 45°C, a relative humidity of 100% (<jats:italic>P</jats:italic><jats:sub>H2O</jats:sub> 96 hPa) for 3‐28 days or in ambient atmosphere at room temperature for 12 years. The Rietveld analysis performed in the space group <jats:italic>P</jats:italic>6<jats:sub>3</jats:sub>/<jats:italic>mcm</jats:italic> (<jats:italic>Z</jats:italic> = 6) indicated the crystal structures were the same as those of the reported h‐WO<jats:sub>3</jats:sub> and that the crystallographic characteristic was as follows: <jats:italic>a</jats:italic> = 0.74219 nm, <jats:italic>c</jats:italic> = 0.77198 nm for h‐WO<jats:sub>3</jats:sub> from the 28‐day aged powder, and <jats:italic>a</jats:italic> = 0.74538 nm, <jats:italic>c</jats:italic> = 0.77194 nm for h‐WO<jats:sub>3</jats:sub> from the 12‐year aged powder.</jats:p> Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide Journal of the American Ceramic Society |
spellingShingle | Tsuyumoto, Isao, Journal of the American Ceramic Society, Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide, Materials Chemistry, Ceramics and Composites |
title | Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_full | Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_fullStr | Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_full_unstemmed | Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_short | Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_sort | facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
title_unstemmed | Facile synthesis of nanocrystalline hexagonal tungsten trioxide from metallic tungsten powder and hydrogen peroxide |
topic | Materials Chemistry, Ceramics and Composites |
url | http://dx.doi.org/10.1111/jace.15250 |