Decomposition mechanism of organic compounds by DC water plasmas at atmospheric pressure

Hiroshi Nishioka, Hironori Saito, Takayuki Watanabe

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


The purpose of this paper is to investigate the decomposition mechanism of organic compounds by water plasmas. The plasma torch can generate 100%-steam by DC discharge without a commercially available steam generator. Methanol or ethanol used as a model substance of water-soluble organic compounds was mixed with water for plasma supporting gas. The main gases after the decomposition were H2, CO, and CO2. The 50 wt.% of carbon was transformed into solid carbon in 5 mol%-ethanol decomposition, while the solid-carbon formation from 5 mol%-methanol was negligible. Larger amount of solid-carbon formation from ethanol decomposition indicates the different mechanism between methanol and ethanol decomposition.

Original languageEnglish
Pages (from-to)924-928
Number of pages5
JournalThin Solid Films
Issue number3
Publication statusPublished - Dec 30 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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