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Comparative Raman Study of Carbon Nanotubes Prepared by D.C. Arc Discharge and Catalytic Methods
Author(s) -
Tan Pingheng,
Zhang ShuLin,
Yue Kwok To,
Huang Fumin,
Shi Zujing,
Zhou Xihuang,
Gu Zhennan
Publication year - 1997
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199705)28:5<369::aid-jrs107>3.0.co;2-x
Subject(s) - raman spectroscopy , carbon nanotube , pyrolytic carbon , catalysis , materials science , graphite , electric arc , carbon fibers , highly oriented pyrolytic graphite , nanotechnology , analytical chemistry (journal) , chemical engineering , chemistry , composite material , pyrolysis , electrode , organic chemistry , optics , physics , engineering , composite number
The Raman spectra of carbon nanotubes prepared by catalytic (C‐CNT) and d.c. arc discharge (D‐CNT) methods are reported. A previously unnoticed third‐order Raman peak at ca . 4248 cm ‐1 was observed in the Raman spectrum of D‐CNT. The Raman features of D‐CNT and C‐CNT are similar to those of highly oriented pyrolytic graphite (HOPG) and active carbon, respectively. The data also suggest that the increase in disorder in D‐CNT compared with HOPG is due to structural defects in D‐CNT. © 1997 by John Wiley & Sons, Ltd.