کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7141815 | 1462034 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multiselective visual gas sensor using nickel oxide nanowires as chemiresistor
ترجمه فارسی عنوان
سنسور گاز بصری چندگانه با استفاده از نانوسیمهای اکسید نیکل به عنوان شیمیزیستور
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Nowadays the detection of unwanted volatile compounds in air is increasingly important in a wide range of fields. Metal oxide nanosensors are extremely small and cheap devices that could be integrated in any application, but their single resistance response make them non-selective. For this reason, sensor arrays are used where pollutant recognition is needed. Unfortunately, these electronic noses, consisting of different active materials, are complex and expensive. Here, we present a simple visual nanosensor that can detect and recognize selectively several volatile compounds at a relatively low temperature (200-300 °C). The dynamic resistance of a conductometric NiO nanosensor is simply transformed in a visual output that allows to recognize different gases and their concentration with a quick look. This way, one single nanostructured metal oxide can act as a sensitive and selective electronic nose, using the powerful post-processing given by the human eyes and brain. The sensor has proven to discriminate 8 different gases diluted in air (1 oxidizing and 7 reducing) and their respective concentration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 255, Part 3, February 2018, Pages 2785-2793
Journal: Sensors and Actuators B: Chemical - Volume 255, Part 3, February 2018, Pages 2785-2793
نویسندگان
Matteo Tonezzer, Le T.T. Dang, Huy Q. Tran, Salvatore Iannotta,