کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
743344 | 1462116 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-sensitivity detection of acetaldehyde
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A set of sensors based on nanostructured single and mixed metal oxides has been prepared and employed in acetaldehyde detection within 0.1–10 ppm, this range being useful for many applications. Electrical characterization has been performed in laboratory at several working temperatures, in order to obtain the optimal operating condition. ZnO working within 450–550 °C, was found to best respond to acetaldehyde. The response vs. concentration curves for all the sensors was a power law with an exponent of 0.5, compatible with the oxidation of acetaldehyde catalyzed by the surface. A decay in the sensor response to acetaldehyde due to humidity was observed and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 174, November 2012, Pages 402–405
Journal: Sensors and Actuators B: Chemical - Volume 174, November 2012, Pages 402–405
نویسندگان
A. Giberti, M.C. Carotta, B. Fabbri, S. Gherardi, V. Guidi, C. Malagù,