Single-wall carbon nanotube interaction with gases: sample contaminants and environmental monitoring

Andrea Goldoni; Rosanna Larciprete; Luca Petaccia; Silvano Lizzit

doi:10.1021/ja034898e

Single-wall carbon nanotube interaction with gases: sample contaminants and environmental monitoring

J Am Chem Soc. 2003 Sep 17;125(37):11329-33. doi: 10.1021/ja034898e.

Authors

Andrea Goldoni¹, Rosanna Larciprete, Luca Petaccia, Silvano Lizzit

Affiliation

¹ Sincrotrone Trieste, S. S. 14, Km. 163,5, 34012 Trieste, Italy. goldonia@elettra.trieste.it

PMID: 16220955
DOI: 10.1021/ja034898e

Abstract

Here, we show that residual contaminants in purified single-wall carbon nanotube bundles may be responsible for the reported sensitivity of the electronic and transport properties to oxygen. Removal of these contaminants makes the electronic spectra insensitive to O(2), CO, H(2)O, and N(2), while a strong sensitivity to NO(2), SO(2), and NH(3) is observed, confirming the possible application of single-wall nanotubes as powerful sensors capable of measuring environmentally significant levels of toxic gases.