کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5354417 | 1503610 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rapid synthesis and characterization of hybrid ZnO@Au core-shell nanorods for high performance, low temperature NO2 gas sensor applications
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
- Hybrid ZnO@Au core-shell nanorods were developed using rapid chemical method that can be used as a high performance, low temperature NO2 gas sensor.
- Surface defect analysis (PL and XPS) clearly illustrates the presence of surface oxygen species and Zn interstitials involved in charge transport properties in-turn affecting gas sensing properties.
- Hybrid ZnO@Au core-shell nanorods establish enhanced gas sensing performance at 150 °C compared to ZnO (300 °C) with a lower detection limit of 500 ppb using conventional electrodes.
- The enhanced performance of ZnO@Au core-shell nanorods based sensor was owing to the presence of Au nanoclusters on the surface of ZnO nanorods which is attributed to the formation of Schottky contacts at the interfaces leading to sensitization effects.
- The hybrid material found to be selective toward NO2 gas and highly stable in nature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 355, 15 November 2015, Pages 726-735
Journal: Applied Surface Science - Volume 355, 15 November 2015, Pages 726-735
نویسندگان
Dinesh Veeran Ponnuvelu, Biji Pullithadathil, Arun K. Prasad, Sandip Dhara, Anuradha Ashok, Kamruddin Mohamed, Ashok Kumar Tyagi, Baldev Raj,