Journal
SOLID STATE IONICS
Volume 151, Issue 1-4, Pages 205-211Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-2738(02)00711-7
Keywords
single-wall carbon nanotubes; hydrothermal treatment; phase stability
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The evolution of single-wall carbon nanotubes (SWNT) under hydrothermal treatment was investigated. Single-wall carbon nanotubes were used as the starting material and treated at temperatures between 200 and 800 degreesC and pressure of 100 MPa. The microstructural evolution was studied by means of transmission electron microscopy and Raman spectroscopy. After treatment at 800 degreesC, the single-wall nanotubes transformed completely to shorter multiwall carbon nanotubes and graphitic particles. The mechanism by which the observed evolution occurs is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
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