کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468025 | 1518926 | 2017 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas sensing properties of (MoO3)0.4(V2O5)0.6 microsheets: Effect of Pd sensitization
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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![عکس صفحه اول مقاله: Gas sensing properties of (MoO3)0.4(V2O5)0.6 microsheets: Effect of Pd sensitization Gas sensing properties of (MoO3)0.4(V2O5)0.6 microsheets: Effect of Pd sensitization](/preview/png/5468025.png)
چکیده انگلیسی
The (MoO3)0.4(V2O5)0.6 microsheets have been successfully prepared onto the glass substrates using chemical spray pyrolysis (CSP) deposition method at optimized substrate temperature of 400 °C. The structural characterization using XRD confirm that both MoO3 and V2O5 exhibit an orthorhombic crystal structure. The two-dimensional FE-SEM micrograph shows the more porous distribution due to the random orientation of microsheets on the film surface. The EDAX analysis of Pd-sensitized (MoO3)0.4(V2O5)0.6 microsheets confirm the presence of Pd, Mo, V and O on the surface of microsheets. Selectivity study show the sensitive and selective response to NO2 gas than NH3, H2S, CO, CO2, SO2 gases at operating temperature of 200 °C. Before Pd-sensitization (MoO3)0.4(V2O5)0.6 microsheets show the NO2 gas response of 80% whereas Pd-sensitized (MoO3)0.4(V2O5)0.6 microsheets exhibit an enhanced response of 115% at 200 °C for 100 ppm NO2 gas concentration. The spill-over gas sensing mechanism reactions based on the chemisorption process at different operating temperatures is discussed to explain how Pd affect on the NO2 gas sensing properties of (MoO3)0.4(V2O5)0.6 microsheets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 144, October 2017, Pages 135-144
Journal: Vacuum - Volume 144, October 2017, Pages 135-144
نویسندگان
A.A. Mane, P.S. Maldar, S.P. Desai, A.V. Moholkar,