Synthesis of amorphous carbon nanoparticles and carbon encapsulated metal nanoparticles in liquid benzene by an electric plasma discharge in ultrasonic cavitation field

Ruslan Sergiienko, Etsuro Shibata, Hiroyuki Suwa, Takashi Nakamura, Zentaro Akase, Yasukazu Murakami, Daisuke Shindo

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A newly-developed method permits an electric plasma discharge to occur with relatively low electric power in insulating organic solutions due to the presence of an ultrasonic cavitation. A stable electric plasma could be generated in an ultrasonic cavitation field containing a thousand tiny activated bubbles, in which the electric conductivity could be improved due to formed radicals and free electrons, using copper electrodes and a titanium ultrasonic horn. This method allowed us to synthesize pyrolytic amorphous carbon nanoparticles smaller than about 30 nm in diameter from benzene liquid. In addition, we synthesized TiC nanoparticles about 50-150 nm in size, and copper nanoparticles smaller than 10 nm, which were encapsulated in multilayered graphite cages. Finally, we used GC-MS and MALDI-TOF-MS to observe and analyze the polymerized compounds and the degree of polymerization of the benzene liquid after the plasma treatment.

Original languageEnglish
Pages (from-to)6-12
Number of pages7
JournalUltrasonics Sonochemistry
Volume13
Issue number1
DOIs
Publication statusPublished - Jan 1 2006

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Metal Nanoparticles
Metal nanoparticles
Amorphous carbon
cavitation flow
Benzene
Cavitation
Ultrasonics
Discharge (fluid mechanics)
Nanoparticles
plasma jets
Carbon
ultrasonics
benzene
Plasmas
nanoparticles
Copper
carbon
Liquids
synthesis
liquids

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Environmental Chemistry
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Synthesis of amorphous carbon nanoparticles and carbon encapsulated metal nanoparticles in liquid benzene by an electric plasma discharge in ultrasonic cavitation field. / Sergiienko, Ruslan; Shibata, Etsuro; Suwa, Hiroyuki; Nakamura, Takashi; Akase, Zentaro; Murakami, Yasukazu; Shindo, Daisuke.

In: Ultrasonics Sonochemistry, Vol. 13, No. 1, 01.01.2006, p. 6-12.

Research output: Contribution to journalArticle

Sergiienko, Ruslan ; Shibata, Etsuro ; Suwa, Hiroyuki ; Nakamura, Takashi ; Akase, Zentaro ; Murakami, Yasukazu ; Shindo, Daisuke. / Synthesis of amorphous carbon nanoparticles and carbon encapsulated metal nanoparticles in liquid benzene by an electric plasma discharge in ultrasonic cavitation field. In: Ultrasonics Sonochemistry. 2006 ; Vol. 13, No. 1. pp. 6-12.
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