引用本文:
Zhong Ping Li, Yong Guo, Suo Zhu Wu, Shao Min Shuang, Chuan Dong. Methane sensor based on palladium/MWNT nanocomposites[J]. Chinese Chemical Letters,
2009, 20(5): 608-610.
doi:
10.1016/j.cclet.2008.12.031
Citation: Zhong Ping Li, Yong Guo, Suo Zhu Wu, Shao Min Shuang, Chuan Dong. Methane sensor based on palladium/MWNT nanocomposites[J]. Chinese Chemical Letters, 2009, 20(5): 608-610. doi: 10.1016/j.cclet.2008.12.031
Citation: Zhong Ping Li, Yong Guo, Suo Zhu Wu, Shao Min Shuang, Chuan Dong. Methane sensor based on palladium/MWNT nanocomposites[J]. Chinese Chemical Letters, 2009, 20(5): 608-610. doi: 10.1016/j.cclet.2008.12.031
Methane sensor based on palladium/MWNT nanocomposites
摘要:
Methane gas sensor was fabricated based on electrocatalytic properties of the Pd/MWNT nanocomposites on indium tin oxide (ITO) glass substrates. A linear response for methane was obtained in the range of 0-16% (v/v) with a detection limit of 0.167% (v/v) and R.S.D. of 4.1%. After 100 times sensing or stable stored more than 12 months in atmosphere, unconspicuous measurable decrease was observed. The response time was less than 60 s at room temperature and ambient pressure. Some common potential interferents in samples such as N2, CO, CO2, ethane, propane, pentane, methanol, ethanol, H2 and NH3 were investigated and all the effects were less than 5% on the response for 3.0% (v/v) methane. The sensor was applied to methane determinations in man-made gas samples, the results are satisfied.
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关键词:
- Methane
- / Gas sensor
- / Palladium/MWNTs
- / Electrocatalysis
English
Methane sensor based on palladium/MWNT nanocomposites
Abstract:
Methane gas sensor was fabricated based on electrocatalytic properties of the Pd/MWNT nanocomposites on indium tin oxide (ITO) glass substrates. A linear response for methane was obtained in the range of 0-16% (v/v) with a detection limit of 0.167% (v/v) and R.S.D. of 4.1%. After 100 times sensing or stable stored more than 12 months in atmosphere, unconspicuous measurable decrease was observed. The response time was less than 60 s at room temperature and ambient pressure. Some common potential interferents in samples such as N2, CO, CO2, ethane, propane, pentane, methanol, ethanol, H2 and NH3 were investigated and all the effects were less than 5% on the response for 3.0% (v/v) methane. The sensor was applied to methane determinations in man-made gas samples, the results are satisfied.
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Key words:
- Methane
- / Gas sensor
- / Palladium/MWNTs
- / Electrocatalysis
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