Oxygen partial pressure effect on the preparation of nanocrystalline tungsten oxide powders by a plasma arc gas condensation technique

Cherng Yuh Su, Chung Kwei Lin, Tsung Kun Yang, Hsuan Ching Lin, Cheng Tang Pan

研究成果: 雜誌貢獻文章

15 引文 (Scopus)

摘要

In the present study, nanocrystalline tungsten oxide powders were prepared by a plasma arc gas condensation technique under a controlled oxygen environment with Ar/O2 ratio ranged from 1/1 to 100/1. It is noted that stoichiometric tungsten oxide nanocrystalline powders (WO3) can be prepared under an Ar/O2 ratio ranged from 1/1 to 99/1, while nonstoichiometric tungsten oxide nanopowders (WO3-x) were synthesized under an Ar/O2 ratio of 100/1. The as-prepared WO3 powders were examined by X-ray diffraction (XRD), Raman scattering, thermal gravimetric analysis (TGA), and high-resolution transmission electron microscope (HRTEM). Experimental results showed that yellowish WO3 nanopowders prepared using different Ar/O2 ratio exhibited slight differences.
原文英語
頁(從 - 到)423-428
頁數6
期刊International Journal of Refractory Metals and Hard Materials
26
發行號5
DOIs
出版狀態已發佈 - 九月 2008
對外發佈Yes

指紋

Pressure effects
Partial pressure
Powders
Tungsten
Condensation
Gases
Oxygen
Plasmas
Oxides
Nanocrystalline powders
Gravimetric analysis
Raman scattering
Electron microscopes
X ray diffraction
tungsten oxide

ASJC Scopus subject areas

  • Metals and Alloys

引用此文

Oxygen partial pressure effect on the preparation of nanocrystalline tungsten oxide powders by a plasma arc gas condensation technique. / Su, Cherng Yuh; Lin, Chung Kwei; Yang, Tsung Kun; Lin, Hsuan Ching; Pan, Cheng Tang.

於: International Journal of Refractory Metals and Hard Materials, 卷 26, 編號 5, 09.2008, p. 423-428.

研究成果: 雜誌貢獻文章

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AU - Lin, Chung Kwei

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AU - Pan, Cheng Tang

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