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題名 | CuO-ZnO材料於半導體型快速酒精感測之研究=Study for Semiconductor Type Fast Response Ethanol Sensor by Using of CuO-ZnO |
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作者 | 吳仁彰; 余明儒; 林子軒; 洪士林; | 書刊名 | 科儀新知 |
卷期 | 30:3=167 2008.12[民97.12] |
頁次 | 頁87-94 |
分類號 | 471.3 |
關鍵詞 | CuO-ZnO材料; 酒精感測; |
語文 | 中文(Chinese) |
中文摘要 | 本研究使用CuO-ZnO為主的材料偵測酒精,適當的CuO與ZnO比例可得到較佳的感測信號。利用酒精吸附在材料表面造成電阻變化的原理,然後將感測器電阻轉換成電壓信號來紀錄。在室溫的工作溫度下,感測材料CuO與ZnO的重量比為1:1時,感測信號強度在酒精濃度為1243ppm下為S=2.5,反應時間約為30秒,回復時間約為25秒。感測材料經程溫還原(TPR)實驗研究發現,CuO-ZnO之複合物為感測的活性中心。濃度的量測範圍在1200-24000ppm時,信號對濃度之關係也在本篇論文研究中,預期未來此材料極有潛力應用於酒精感測。 |
英文摘要 | A study for detecting ethanol was performed by application of CuO-ZnO materials, high sensor response (S) was got from the adjusting appropriate ratio of CuO and ZnO. By using the theory of resistance variation to ethanol adsorption on surface of sensing material, resistance was transformed to voltage signal and detected. In the of condition 1:1 weight ratio of CuO and ZnO, the sensor response was 2.5 to 1243 ppm ethanol at room working temperature. The response and recovery times were measured as 30 and 25 s, respectively. Composite materials were the active center of CuO-ZnO by studying TPR data. Sensor response was performed with the ethanol concentration be varied from 1200 to 24000 ppm. The sensing materials are promising for the ethanol gas detection in the future. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。