کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9700914 | 1462132 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Undoped and 0.1Â wt.% Ca-doped Pt-catalyzed SnO2 sensors for CH4 detection
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Undoped and 0.1Â wt.% Ca-doped Pt-catalyzed SnO2 sensors for CH4 detection Undoped and 0.1Â wt.% Ca-doped Pt-catalyzed SnO2 sensors for CH4 detection](/preview/png/9700914.png)
چکیده انگلیسی
Thin films of undoped and 0.1Â wt.% Ca-doped SnO2 with 30-60Â Ã
Pt layers deposited by ion beam sputtering have been structured on Si substrates. CH4 sensitivities for those Pt-covered undoped and Ca-doped SnO2 sensors are compared in terms of root-mean-square surface roughnesses measured by the scanning probe microscopy in the AFM mode. There is an optimal Pt thickness of 45Â Ã
for maximum CH4 sensitivity. Pt catalysts lead to increase in methane sensitivity for the undoped sensor. However, coating of a Pt catalyst layer on the Ca-doped SnO2 results in an inverse effect on CH4 sensitivity. All the fabricated sensors exhibited relatively small humidity dependencies and excellent long-term stabilities for 90 days.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 108, Issues 1â2, 22 July 2005, Pages 119-124
Journal: Sensors and Actuators B: Chemical - Volume 108, Issues 1â2, 22 July 2005, Pages 119-124
نویسندگان
Bong-Ki Min, Soon-Don Choi,