کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11019938 | 1717616 | 2019 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of mesoporous Zn doped NiCo2O4 rods produced by hydrothermal method for NOx gas sensing application
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization of mesoporous Zn doped NiCo2O4 rods produced by hydrothermal method for NOx gas sensing application Characterization of mesoporous Zn doped NiCo2O4 rods produced by hydrothermal method for NOx gas sensing application](/preview/png/11019938.png)
چکیده انگلیسی
We report the characterization and NOx gas sensing properties of Zn doped NiCo2O4 mesoporous rods obtained through a simple hydrothermal approach. X-ray powder diffraction confirms the spinel structure with cell parameter (a) of 8.110â¯Ã
. X-ray photoelectron spectroscopy studies reveal the oxidation states of metal oxides. N2-adsorption-desorption analysis and electron microscopic studies show the mesoporous nature of the sample. The specific surface area is found to be 76â¯m2â¯gâ1 with an average pore diameter of 21â¯nm. The thick film of Zn doped NiCo2O4 mesoporous rods exhibit good gas sensing characteristics towards NOx. Gas response of the sensor increases with concentration of NOx from 2â¯ppm to 200â¯ppm. It has a response time of 28â¯s and recovery time of 30â¯s towards 10â¯ppm NOx gas at 200â¯Â°C. The NOx gas concentration dependent responses and cyclic tests of the sensor demonstrate better reliability and reproducibility with regards to NOx gas sensing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 773, 30 January 2019, Pages 158-167
Journal: Journal of Alloys and Compounds - Volume 773, 30 January 2019, Pages 158-167
نویسندگان
Vijay Kumar, C.R. Mariappan,