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Photochemical Behavior of Single‐Walled Carbon Nanotubes in the Presence of Propylamine
Author(s) -
Maeda Yutaka,
Hasuike Yuhei,
Ohkubo Kei,
Tashiro Atsushi,
Kaneko Shinya,
Kikuta Masayuki,
Yamada Michio,
Hasegawa Tadashi,
Akasaka Takeshi,
Zhou Jing,
Lu Jing,
Nagase Shigeru,
Fukuzumi Shunichi
Publication year - 2014
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201301045
Subject(s) - propylamine , carbon nanotube , photochemistry , amine gas treating , raman spectroscopy , spectroscopy , absorption spectroscopy , electron transfer , excited state , materials science , photoinduced electron transfer , chemistry , surface modification , absorption (acoustics) , nanotechnology , organic chemistry , physics , quantum mechanics , nuclear physics , optics , composite material
This report describes the photochemical behavior of single‐walled carbon nanotubes (SWNTs) in the presence of propylamine. The SWNTs are characterized by absorption and Raman spectroscopy. The spectral changes due to photoirradiation indicate that reactions occur predominantly with the metallic SWNTs and small‐diameter SWNTs. The detection of amine radicalcation species by ESR spectroscopy reveals photoinduced electron transfer from the amine to the excited SWNTs. After exposure of the photoirradiated SWNTs to air, the characteristic spectra were recovered, except for that of the small‐diameter SWNTs. The results suggest that, after photoreduction of the SWNTs, subsequent selective sidewall functionalization of the small‐diameter SWNTs occurs.