Umar Ahmad, Lee Jong-Heun, Kumar Rajesh, Al-Dossary O
J Nanosci Nanotechnol. 2017 Feb;17(2):1455-459. doi: 10.1166/jnn.2017.12727.
Herein, the fabrication and characterization of highly sensitive and selective ethanol gas sensor based on CuO nanodisks is reported. The CuO nanodisks were synthesized by facile hydrothermal process and detailed characterization revealed the well-crystallinity, high-purity and high density growth of the prepared material. To fabricate the ethanol gas sensor, the prepared nanodisks were coated on alumina substrate. The fabricated sensor exhibited high-sensitivity and the recorded gas response (resistance-ratio), response time (τ res) and recovery time (τ recov) were 6.2, 119 and 35 s, respectively for 100 ppm of C₂H₅OH at 300 °C. Further, the fabricated sensor shows high selectivity towards ethanol gas compared to H₂ and CO gases.
在此，报道了基于氧化铜纳米盘的高灵敏度和选择性乙醇气体传感器的制备与表征。通过简便的水热法合成了氧化铜纳米盘，详细表征表明所制备材料具有良好的结晶度、高纯度和高密度生长。为制备乙醇气体传感器，将制备的纳米盘涂覆在氧化铝基板上。所制备的传感器表现出高灵敏度，在300℃下，对于100ppm的乙醇，记录的气体响应（电阻比）、响应时间（τres）和恢复时间（τrecov）分别为6.2、119和35秒。此外，与氢气和一氧化碳气体相比，所制备的传感器对乙醇气体具有高选择性。
