Electrostatic deposition and functionalization of CVD grown multiwalled carbon nanotubes for sensitive & selective detection of CO and NOx at room temperature

Among the most toxic and suffocating gases in industries and mines are carbon monoxide (CO) and nitrogen oxides (NOx). The electrostatically functionalized self-assembled MWCNT (f-MWCNTs) were employed to develop a sensing device to selectively sense gases such as CO and NOx with high sensitivity and repeatability to as low as sub-ppm levels. The resistive gas sensor's operation is primarily based on changes in the electrical resistance of the...