Nanocarbons by high-temperature decomposition of graphite oxide at various pressures

Alexandr V. Talyzin, Tamás Szabó, Imre Dékány, Falko Langenhorst, Petr S. Sokolov, Vladimir L. Solozhenko

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Thermal decomposition of graphite oxide into nanocarbons at pressures from ambient to 5 GPa has been studied by using X-ray diffraction, Raman spectroscopy and TEM. The temperature of graphite oxide decomposition at 5 GPa is close to the temperature of graphite oxide exfoliation at ambient pressure; however, materials formed are strongly dependent on pressure. High-pressure conditions favor formation of rounded graphitic nanoparticles, while exfoliation at ambient pressure results in preservation of paper-like wrinkled micrometer size sheets (with thickness of a few graphene layers) typical for pristine graphite oxide.

Original languageEnglish
Pages (from-to)11279-11284
Number of pages6
JournalJournal of Physical Chemistry C
Volume113
Issue number26
DOIs
Publication statusPublished - Jul 2 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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