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Single-Walled Carbon Nanotube Rope for Gas Sensor Application

Published online by Cambridge University Press:  01 February 2011

J. W. Lee
Affiliation:
Advanced materials division, Korea Research Institute of Chemical Technology, Jangdong 100, Yuseong, Daejeon 305–600, Korea
Y. M. Choi
Affiliation:
Advanced materials division, Korea Research Institute of Chemical Technology, Jangdong 100, Yuseong, Daejeon 305–600, Korea
K. J. Kong
Affiliation:
Advanced materials division, Korea Research Institute of Chemical Technology, Jangdong 100, Yuseong, Daejeon 305–600, Korea
H. J. Chang
Affiliation:
Advanced materials division, Korea Research Institute of Chemical Technology, Jangdong 100, Yuseong, Daejeon 305–600, Korea
B. H. Ryu
Affiliation:
Advanced materials division, Korea Research Institute of Chemical Technology, Jangdong 100, Yuseong, Daejeon 305–600, Korea
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Abstract

A chemical gas sensor with a novel pad pattern applicable to NH3, NO2, and H2 gas was developed based on single-walled carbon nanotube ropes. In this pattern named BCE (Barricade confronting electrode), several electrodes were located at the circumference of a sample and each pair of electrode tips was designed to confront to each other with a narrow interval. Several single-walled carbon nanotubes were shifted to the interval by the centrifugal force generated through the rapid rotation of a sample equipped on the spinner. Our device showed improved performance for NO2, NH3, and H2 gases compared with others in references.

Type
Research Article
Copyright
Copyright © Materials Research Society 2004

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References

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