The interaction of halogen molecules with SWNTs and graphene
作者： Sandeep Ghosh , S R K C Sharma Yamijala , Swapan K. Pati , C.N.R. Rao
DOI: 10.1039/C1RA00295C
关键词: Electron affinity 、 Carbon nanotube 、 Absorption spectroscopy 、 Graphene 、 Chemistry 、 Raman spectroscopy 、 Iodine monobromide 、 Halogen 、 Inorganic chemistry 、 Iodine monochloride 、 Photochemistry
摘要: The interaction of halogen molecules varying electron affinity, such as iodine monochloride (ICl), bromine (Br2), monobromide (IBr) and (I2) with single-walled carbon nanotubes (SWNTs) graphene has been investigated in detail. Halogen doping the two nanocarbons examined using Raman spectroscopy conjunction electronic absorption extensive theoretical calculations. molecules, being withdrawing nature, induce distinct changes states both SWNTs graphene, which manifests a change spectroscopic signatures. Stiffening G-bands upon treatment different emergence new bands spectra, point to fact that are involved molecular charge-transfer nanocarbons. experimental findings have explained through density functional theory (DFT) calculations, suggest extent depends on affinities halogens, determines overall properties. magnitude between halogens generally varies order ICl > Br2 IBr I2, is consistent expected affinities.
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