High structural stability of single wall carbon nanotube under quasi-hydrostatic high pressures

Journal Article · Mon Nov 23 04:00:00 EST 2009 · Chem. Phys. Lett.

DOI:https://doi.org/10.1016/j.cplett.2009.07.096· OSTI ID:1005955

Chen, Jing-Yin; Kim, Minseob; Yoo, Choong-Shik

In quasi-hydrostatic conditions, single wall carbon nanotubes (SWNTs) exhibit high structural stability to {approx}35 GPa, well beyond the stability of sp{sup 2} C{double_bond}C bonds in graphite, carbon fullerenes, benzene, and other hydrocarbons. The pressure-induced Raman changes of SWNT are completely reversible below 16 GPa, partially reversible between 16 and 35 GPa, and irreversible beyond 35 GPa where it turns into highly disordered graphite. We explain the high stability in terms of the pressure-induced structural modification to an interlinked configuration, which occurs reversibly under substantial sp{sup 3} hybridization ({approx}20%) and, thus, increases the stability of sp{sup 2} C{double_bond}C bonds in the SWNTs.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: USDOE
• OSTI ID: 1005955
• Journal Information: Chem. Phys. Lett., Journal Name: Chem. Phys. Lett. Journal Issue: (1-3) ; 09, 2009 Vol. 479; ISSN CHPLBC; ISSN 0009-2614
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
BENZENE
CARBON
CONFIGURATION
FULLERENES
GRAPHITE
HYBRIDIZATION
HYDROCARBONS
MODIFICATIONS
NANOTUBES
STABILITY