کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
221159 463376 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A carbon nanotube sensor array for sensitive gas discrimination using principal component analysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A carbon nanotube sensor array for sensitive gas discrimination using principal component analysis
چکیده انگلیسی

A carbon nanotube based gas sensor array was developed for discriminating gases and vapors. The sensor array was composed of 32 sensing elements with nanomaterials, e.g. pristine single walled carbon nanotubes (SWNTs), and SWNTs with different metal dopants and polymer coatings. This sensor array was exposed to NO2, HCN, HCl, Cl2, acetone and benzene in parts per million (ppm) concentration levels. The array data was normalized and autoscaled for eliminating concentration and background noise, and ignoring outliers. The post processed array data was then subjected to a principal component analysis, a pattern recognition technique, for gas and vapor discrimination. All tested gases and vapors can be discriminated by their chemical nature in the low gas/vapor concentration at ppm levels using this carbon nanotube based sensor array.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 593, Issues 1–2, 1 August 2006, Pages 105–110
نویسندگان
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