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題名 | Carbon Nanotubes Gas Sensor for Ethanol Detection=奈米碳管偵測酒精氣體 |
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作者姓名(中文) | 葉宗信; | 書刊名 | International Journal of Science and Engineering |
卷期 | 2:1 2012.03[民101.03] |
頁次 | 頁1-3 |
分類號 | 448.5 |
關鍵詞 | 酒精氣體; 奈米碳管; 熱化學氣相沉積; Carbon nanotubes; Thermal chemical vapor deposition; Gas sensor; Hydrogen bonding; |
語文 | 英文(English) |
英文摘要 | Carbon nanotubes (CNTs), synthesized by thermal chemical vapor deposition, have been used to fabricate a prototype sensor. The sensor was investigated for its sensitivity towards different chamber pressure of ethanol vapor sat room temperature. Upon exposure to a with and without ethanol environment at room temperature, the electrical resistance of the sensor was found to increase even for ethanol vapor chamber pressure as low as 50mTorr and to return back respectively. It is proposed that hydrogen bonding of the functionalized groups on CNTs with adsorbed molecules is responsible for this response. |
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