کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
743146 894343 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nanowire structured SnOx–SWNT composites: High performance sensor for NOx detection
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Nanowire structured SnOx–SWNT composites: High performance sensor for NOx detection
چکیده انگلیسی

A nanowire structured nanocomposite of tin oxide (SnOx) and a single-walled carbon nanotube (SWNT) are fabricated using rheotaxial growth and thermal oxidation method for gas sensor application. The morphology, gas sensing properties, as well as the chemical and electrical properties are investigated. The oxidation temperature for Sn mainly determines the stoichiometry of the SnOx nano-beads, and consequently the electrical and gas sensing properties of the nanocomposite sensors. The gas sensing to nitrogen oxide, hydrogen, oxygen, xylene, acetone, carbon monoxide, and ammonia are also examined to determine the gas selectivity of the sensor. The high sensitivity and selectivity towards NOx of the nanocomposite sensor is realized via the porous structure of the SWNT template. The gas sensing mechanism of the nanocomposite structure is also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 142, Issue 1, 12 October 2009, Pages 253–259
نویسندگان
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