[Raman spectroscopic study of boron carbonitride nanotubes].
Raman spectra of boron carbonitride (BCN) nanotubes made by thermal decomposition under different temperatures and with different catalysts were analyzed. The intensity ratio of D to G band, I(D)/I(G), increases and then decreases with the increase of the temperature. It was indicated that there exists an optimal temperature under which B and N incorporation is maximum. The catalysts influence also the Raman spectra of the BCN nanotubes. I(D)/I(G) is higher with cobalt/ferrocene and nickel/ferrocene than with cobalt, nickel and cobalt/nickel as catalysts. This means that better BCN nanotubes with B and N contents can be produced with the former. The results were confirmed by TEM observation.
Zhang
Hong-rui
HR
Department of Physics and Laboratory of Materials Physics of He'nan Province, Zhengzhou University, Zhengzhou 450052, China.
Ding
Pei
P
Guo
Xing-yong
XY
Liang
Er-jun
EJ
D001896:Boron Compounds / Q000737:chemistry*; D003460:Crystallization; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods*; D013499:Surface Properties
D001896:Boron Compounds; D037742:Nanotubes, Carbon; C488551:boron carbonitride