https://doi.org/10.4081/nd.2012.e1

Nano/microwires of coronene for sensing electron-deficient aromatics

Vol. 2 No. 1 (2012)
Submitted: 2 September 2011
Accepted: 6 December 2011
Published: 9 December 2011
nano/microwires, coronene, sensing electron-deficient aromatics.
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Authors

Hong Wang
Department of Chemistry, Drexel University, Philadelphia, PA, United States.
Xiao-He Xu
Department of Chemistry, Drexel University, Philadelphia, PA, United States.
Hai-Feng Ji
hj56@drexel.edu
Department of Chemistry, Drexel University, Philadelphia, PA, United States.
We report the synthesis, characterization, and application of coronene nano/microwires for sensing electron-deficient aromatics. The coronene nano/microwires were prepared by a vapor deposition method. The nano /microwires were approximately 300 nm in diameter and 3-5 mm long. ATR-IR spectroscopy and TG/DTA showed that coronene remains intact and does not undergo polymerization or decomposition during the vapor deposition. Cross-optical polarized microscopy showed a birefringent crystal structure of the coronene microwires. Fluorescent imaging showed that the crystalline coronene nano/microwires can be used as waveguide material. Both the conductivity and fluorescence of the crystalline nano/microwires change selectively in the presence of nitrobenzene vapor, a representative nitroaromatic. This suggests that the coronene nano/ microwires may be used for selective detection of explosives since many explosives belong to a group of electron-deficient nitroaromatics.

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How to Cite

Wang, H., Xu, X.-H., & Ji, H.-F. (2011). Nano/microwires of coronene for sensing electron-deficient aromatics. Nanotechnology Development, 2(1), e1. https://doi.org/10.4081/nd.2012.e1

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