Growth of double-walled carbon nanotubes using a conditioning catalyst

H. Muramatsu, T. Hayashi, Y. A. Kim, M. Endo, Mauricio Terrones Maldonado, M. S. Dresselhaus

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Here we describe the effect of different synthetic conditions on the quality and purity of double-walled carbon nanotubes (DWNTs) with the aid of a conditioning catalyst. By lowering the reaction temperature down to 875°C and utilizing a conditioning catalyst, increased purity and a decreased inner diameter of the DWNTs was achieved, while adverse results were observed with increasing reaction temperature. Based on detailed high-resolution transmission electron microscopy studies on the diameter distribution of the tubes, preferential growth conditions for DWNTs over single-wall carbon nanotubes are identified solely from increased carbon solubility considerations (caused by an increased portion of active carbon species by use of Mo) for the same distribution of metal particles.

Original languageEnglish (US)
Pages (from-to)404-408
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume5
Issue number3
DOIs
StatePublished - Dec 1 2005

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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