Trace Detection of Hydrogen Peroxide Vapor Using a Carbon-Nanotube-Based Chemical Sensor

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 resul...

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Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2011-06, Vol.7 (12), p.1714-1718
Main Authors: Lu, Yijiang, Meyyappan, M., Li, Jing
Format: Article
Language:English
Subjects:
carbon nanotubes
Detection
electronic noses
Hydrogen peroxide
Hydrogen Peroxide - chemistry
Methyl alcohol
Microscopy, Electron, Scanning
Nanocomposites
Nanomaterials
Nanostructure
Nanotechnology - methods
Nanotubes, Carbon - chemistry
Nanotubes, Carbon - ultrastructure
sensor arrays
Sensors
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cited_by cdi_FETCH-LOGICAL-c4816-767be59b00d9a9770ac7945a099564d2ae5ae11af9f77912afe8762e0f9d3e663
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creator Lu, Yijiang
Meyyappan, M.
Li, Jing
description 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. A sensor array chip consisting of 32 sensor elements is constructed with single‐walled carbon nanotubes, with variations created via functionalization and doping. The sensor array is shown to be able to detect low concentrations of H2O2 vapor and to discriminate peroxide and water and alcohol.
doi_str_mv 10.1002/smll.201100406
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source Wiley-Blackwell Read & Publish Collection
subjects carbon nanotubes
Detection
electronic noses
Hydrogen peroxide
Hydrogen Peroxide - chemistry
Methyl alcohol
Microscopy, Electron, Scanning
Nanocomposites
Nanomaterials
Nanostructure
Nanotechnology - methods
Nanotubes, Carbon - chemistry
Nanotubes, Carbon - ultrastructure
sensor arrays
Sensors
title Trace Detection of Hydrogen Peroxide Vapor Using a Carbon-Nanotube-Based Chemical Sensor
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