Diverse Chemiresistors Based upon Covalently Modified Multiwalled Carbon Nanotubes
Name
s1-ln948101168035582-1939656818Hwf644714889IdV379140768948101PDF_HI0001.pdf
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12.67 MB
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Adobe PDF
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5694d2e75ea136458e4609384efd023d
Author(s)
Swager, Timothy Manning
Wang, Fei
Date Issued
March 2011
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Citation
Wang, Fei, and Timothy M. Swager. “Diverse Chemiresistors Based Upon Covalently Modified Multiwalled Carbon Nanotubes.” Journal of the American Chemical Society 133.29 (2011): 11181–11193.
Version
Author's final manuscript
Abstract
A diverse array of multiwalled carbon nanotube (MWCNT) sensory materials have been synthesized and used to create sensors capable of identifying volatile organic compounds (VOCs) on the basis of their functional groups. Functionalized MWCNTs with a series of cross-sensitive recognition groups were successfully synthesized via zwitterionic and post-transformation synthetic procedures. The incorporated chemical functional groups on MWCNT surfaces introduced greatly increased sensitivity and selectivity to the targeted analytes. The distinct response pattern of each chemical was subjected to statistical treatments, which led to a clear separation and accurate identification of 100% of the VOCs. These results demonstrate that covalent functionalized MWCNT-based sensor arrays are a promising approach for low-cost, real time detection and identification of VOCs.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1021/ja201860g
