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Time-resolved fourier transform emission spectroscopy of CF Br and CF CFHCF in a pulsed electrical discharge

Plasma Chemistry and Plasma Processing, ISSN: 0272-4324, Vol: 31, Issue: 3, Page: 417-426
2011
  • 3
    Citations
  • 0
    Usage
  • 15
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    3
    • Citation Indexes
      3
  • Captures
    15

Article Description

The environmentally important decomposition of halogenated species CF Br and CF CHFCF in helium discharge plasma was investigated by time-resolved high-resolution Fourier transform infrared emission spectroscopy. Contrary to classical pyrolysis, a deeper fragmentation of precursors up to atoms and lower molecular species was observed. Excited molecular products CF, CF and CF achieved the maximal concentration in the afterglow. The high concentration of all these species is in agreement with a kinetic model based on radical chemistry. The non-detectable concentration of CF can be connected to its high reactivity and the formation of more stable products, CF and CF , by addition or release of a fluorine atom, respectively. Other products included HF, HBr, CO and cyano compounds that were produced by secondary reactions with traces of water vapor, atmospheric oxygen and nitrogen present in original industrial samples as impurities. © 2011 Springer Science+Business Media, LLC.

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