Low temperature fullerene encapsulation in single wall carbon nanotubes: synthesis of N@C 60@SWCNT

• Published in: Chemical physics letters Vol. 383; no. 3; pp. 362 - 367
• Main Authors: Simon, F, Kuzmany, H, Rauf, H, Pichler, T, Bernardi, J, Peterlik, H, Korecz, L, Fülöp, F, Jánossy, A
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 08-01-2004
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2003.11.039

High filling of single wall carbon nanotubes (SWCNT) with C
60 and C
70 fullerenes from solvent is reported at temperatures as low as 69 °C. A 2-h long refluxing in
n-hexane of the mixture of the fullerene and SWCNT results in a high yield of C
60,C
70@SWCNT, fullerene peapod, material. The peapod filling is characterized by TEM, Raman and electron energy loss spectroscopy and X-ray scattering. We applied the method to synthesize the temperature sensitive (N@C
60:C
60)@SWCNT as proved by electron spin resonance spectroscopy. The solvent prepared peapod samples can be transformed to double walled nanotubes enabling a high yield and industrially scalable production of DWCNT.