Tungsten oxide nanopowders and nanorods prepared by a modified plasma arc gas condensation technique

Cherng Yuh Su; Hsuan Ching Lin; Tsung Kun Yang; Chong Hong Chang; Chung Kwei Lin

doi:10.2320/matertrans.M2009068

Tungsten oxide nanopowders and nanorods prepared by a modified plasma arc gas condensation technique

Cherng Yuh Su, Hsuan Ching Lin, Tsung Kun Yang, Chong Hong Chang, Chung Kwei Lin

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Tungsten oxide nanopowders and nanorods were synthesized by using a modified plasma arc gas condensation technique that involved the introduction of a mixed gas with controllable partial O₂ pressure into a gas condensation system. Experimental results showed that yellow and blue tungsten oxide nanopowders, prepared under an Ar to O₂ ratios of 1: 1 and 100: 1, exhibited a major WO₃ phase and W₁₉O₅₅ phase, respectively. The nanopowders grew into W₅O₁₄-phase nanorods along the [001] direction when H₂ was used as the reduction gas.

Original language	English
Pages (from-to)	2593-2597
Number of pages	5
Journal	Materials Transactions
Volume	50
Issue number	11
DOIs	https://doi.org/10.2320/matertrans.M2009068
Publication status	Published - Nov 2009
Externally published	Yes

Keywords

Gas condensation
Nanopowders
Nanorods
Tungsten oxide

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
General Materials Science

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abstract = "Tungsten oxide nanopowders and nanorods were synthesized by using a modified plasma arc gas condensation technique that involved the introduction of a mixed gas with controllable partial O2 pressure into a gas condensation system. Experimental results showed that yellow and blue tungsten oxide nanopowders, prepared under an Ar to O2 ratios of 1: 1 and 100: 1, exhibited a major WO3 phase and W19O55 phase, respectively. The nanopowders grew into W5O14-phase nanorods along the [001] direction when H2 was used as the reduction gas.",

keywords = "Gas condensation, Nanopowders, Nanorods, Tungsten oxide",

author = "Su, {Cherng Yuh} and Lin, {Hsuan Ching} and Yang, {Tsung Kun} and Chang, {Chong Hong} and Lin, {Chung Kwei}",

year = "2009",

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doi = "10.2320/matertrans.M2009068",

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T1 - Tungsten oxide nanopowders and nanorods prepared by a modified plasma arc gas condensation technique

AU - Su, Cherng Yuh

AU - Lin, Hsuan Ching

AU - Yang, Tsung Kun

AU - Chang, Chong Hong

AU - Lin, Chung Kwei

PY - 2009/11

Y1 - 2009/11

N2 - Tungsten oxide nanopowders and nanorods were synthesized by using a modified plasma arc gas condensation technique that involved the introduction of a mixed gas with controllable partial O2 pressure into a gas condensation system. Experimental results showed that yellow and blue tungsten oxide nanopowders, prepared under an Ar to O2 ratios of 1: 1 and 100: 1, exhibited a major WO3 phase and W19O55 phase, respectively. The nanopowders grew into W5O14-phase nanorods along the [001] direction when H2 was used as the reduction gas.

AB - Tungsten oxide nanopowders and nanorods were synthesized by using a modified plasma arc gas condensation technique that involved the introduction of a mixed gas with controllable partial O2 pressure into a gas condensation system. Experimental results showed that yellow and blue tungsten oxide nanopowders, prepared under an Ar to O2 ratios of 1: 1 and 100: 1, exhibited a major WO3 phase and W19O55 phase, respectively. The nanopowders grew into W5O14-phase nanorods along the [001] direction when H2 was used as the reduction gas.

KW - Gas condensation

KW - Nanopowders

KW - Nanorods

KW - Tungsten oxide

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Tungsten oxide nanopowders and nanorods prepared by a modified plasma arc gas condensation technique

Abstract

Keywords

ASJC Scopus subject areas

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