Carbon nanocells and nanotubes grown in hydrothermal fluids

Jose M. Calderon Moreno, Srikanta S. Swamy, Takahiro Fujino, Masahiro Yoshimura

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

For the first time multiwall carbon nanocells (∅<100nm) and multiwall carbon nanotubes have been artificially grown in hydrothermal fluids from amorphous carbon, at temperatures below 800°C, in the absence of metal catalysts. Carbon nanocells were the result of bubble growth of graphitic multiwalls at 600°C. Pristine multiwall nanotubes grow at higher temperatures. At 800°C, the condensed solids consist of defect-free sp2-bonded multiwall nanocrystals. Hot hydrothermal fluids seem essential for the growth of curled patches of sp2-bonded carbon at low temperatures. Hydrothermal synthesis of finite sp2-bonded nanotubes and carbon nanocrystals is possible in moderate conditions and easy to reproduce.

Original languageEnglish
Pages (from-to)317-322
Number of pages6
JournalChemical Physics Letters
Volume329
Issue number3-4
DOIs
Publication statusPublished - 2000 Oct 20

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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