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Trace Detection of Hydrogen Peroxide Vapor Using a Carbon‐Nanotube‐Based Chemical Sensor
Author(s) -
Lu Yijiang,
Meyyappan M.,
Li Jing
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201100406
Subject(s) - carbon nanotube , hydrogen peroxide , trace (psycholinguistics) , materials science , nanotechnology , hydrogen , carbon fibers , carbon nanotube quantum dot , chemical engineering , nanotube , chemistry , organic chemistry , composite material , composite number , linguistics , philosophy , engineering
The sensitive detection of hydrogen peroxide in the vapor phase is achieved using a nanochemical sensor consisting of single‐walled carbon nanotubes as the sensing material. The interdigitated electrode‐based sensor is constructed using a simple and standard microfabrication approach. The test results indicate a sensing capability of 25 ppm and response and recovery times in seconds. The sensor array consisting of 32 sensor elements with variations in sensing materials is capable of discriminating hydrogen peroxide from water and methanol.