[1] Chen Yiwen*, Lai Suk Yin, Wu Zonghan,. NO-Sensing Characteristics of Pure and Pt-Doped WO3 FilmsPrepared by Sol-Gel Technique [J]. Journal of Southeast University (English Edition), 2001, 17 (2): 27-31. [doi:10.3969/j.issn.1003-7985.2001.02.007]
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NO-Sensing Characteristics of Pure and Pt-Doped WO3 FilmsPrepared by Sol-Gel Technique(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 17
- Issue:
- 2001 2
- Page:
- 27-31
- Research Field:
- Chemistry and Chemical Engineering
- Publishing date:
- 2001-12-30
Info
- Title:
- NO-Sensing Characteristics of Pure and Pt-Doped WO3 FilmsPrepared by Sol-Gel Technique
- Author(s):
- Chen Yiwen1*; Lai Suk Yin2; Wu Zonghan1
-
1Physics Department, Southeast University, Nanjing 210096, China
2Chemistry Department, Hong Kong Baptist University, Hong Kong, China
- Keywords:
- nitric oxide; WO3; sol-gel; Pt; thin film
- PACS:
- O657
- DOI:
- 10.3969/j.issn.1003-7985.2001.02.007
- Abstract:
- Pure and Pt-doped(m(Pt):m(WO3)=0.3%)WO3 thin films were prepared using the sol-gel process by the dip coating technique on alumina substrates. The resistance of pure and Pt-doped thin films fired at various temperatures in the range of 450-850 ℃ were measured and compared. An optimum sintering temperature was judged to be 650 ℃. The pure WO3 thin films maximum sensitivity to 40×10-6 NO was 8.9 at optimum operating temperature 350 ℃. Maximum sensitivity of the Pt-doped(m(Pt):m(WO3)=0.3%)WO3 thin film’s to 40×10-6 NO was 114.0 at optimum operating temperature 250 ℃. The experimental results demonstrated that Pt-doped WO3 thin films obtained by sol-gel technique have high sensitivity, low operating temperature, fast and reproducible response to NO.
References:
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Memo
- Memo:
- * Born in 1966, male, doctor.