کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5146374 | 1497370 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Custom designed metal anchored SnO2 sensor for H2 detection
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Herein, we report sputter deposited SnO2 thin film based sensor structures anchored with different metal clusters (Pt, Au, Cu, In, W and Cr) for efficient detection of H2 gas. Controlled decoration of â¼9 nm thin Pt clusters having 200 μm dia on the top surface of SnO2 thin film exhibited dramatically outperformed results. The Pt/SnO2 sensor shows an improvement upto two orders in sensing response Sâ¼1.68 Ã 102 towards 500 ppm of H2 gas at a relatively low operating temperature of 110 °C. The sensor exhibited excellent gas sensing characteristics in the concentration range 2-5000 ppm H2 at operating temperatures of 70-230 °C. The sensor revealed negligible cross sensing signals against other interfering gases like acetone, IPA, TCE, NO2, methane, LPG, petrol and NH3. The structural and surface morphological studies of SnO2 thin films were carried out. Reliability analysis and selectivity demonstration by Pt/SnO2 sensor was found to be consistent over long term. The work envisions towards realization of targeted H2 detection system at low temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 7, 16 February 2017, Pages 4597-4609
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 7, 16 February 2017, Pages 4597-4609
نویسندگان
Md. Shahabuddin, Ahmad Umar, Monika Tomar, Vinay Gupta,