Varghese, Neenu ; Ghosh, Anupama ; Voggu, Rakesh ; Ghosh, Sandeep ; Rao, C. N. R. (2009) Selectivity in the interaction of electron donor and acceptor molecules with graphene and single-walled carbon nanotubes Journal of Physical Chemistry C, 113 (39). pp. 16855-16859. ISSN 1932-7447
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp9075355
Related URL: http://dx.doi.org/10.1021/jp9075355
Abstract
Interaction of electron donor and acceptor molecules with graphene samples prepared by different methods as well as with single-walled carbon nanotubes (SWNTs) has been investigated by isothermal titration calorimetry (ITC). The ITC interaction energies of the graphene samples and SWNTs with electron acceptor molecules are higher than those with electron donor molecules. Thus, tetracyanoethylene (TCNE) shows the highest interaction energy with both graphene and SWNTs. The interaction energy with acceptor molecules varies with the electron affinity as well as with the charge-transfer transition energy for different aromatics. Metallic SWNTs interact reversibly with electron acceptor molecules, resulting in the opening of a gap.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Chemical Society. |
ID Code: | 40028 |
Deposited On: | 21 May 2011 06:52 |
Last Modified: | 21 May 2011 06:52 |
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