Demonstration of Diameter-Selective Reactivity in the Sidewall Ozonation of SWNTs by Resonance Raman Spectroscopy

Strategies for single-walled carbon nanotube (SWNT) separation are critical to developing nanotubes as useful nanoscale building blocks. Herein, we demonstrate that solution-phase ozonolysis of SWNTs fosters diameter selectivity in SWNTs. The main conclusion of our work is that in this sidewall addi...

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Veröffentlicht in:	Nano letters 2004-08, Vol.4 (8), p.1445-1450
Hauptverfasser:	Banerjee, Sarbajit, Wong, Stanislaus S
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Infrared and raman spectra and scattering Materials science Nanoscale materials and structures: fabrication and characterization Nanotubes Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other nonmetallic inorganics Physics
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Beschreibung
Zusammenfassung:	Strategies for single-walled carbon nanotube (SWNT) separation are critical to developing nanotubes as useful nanoscale building blocks. Herein, we demonstrate that solution-phase ozonolysis of SWNTs fosters diameter selectivity in SWNTs. The main conclusion of our work is that in this sidewall addition reaction, smaller diameter tubes react more extensively than larger diameter tubes, which provides experimental validation for theoretical predictions on the role of pyramidalization and π-orbital misalignment in nanotube reactivity.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl049261n