Acta Phys. -Chim. Sin. ›› 2005, Vol. 21 ›› Issue (12): 1352-1356.doi: 10.3866/PKU.WHXB20051205

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Optical Emission Spectroscopy Diagnosis on Decomposition of NO in NO/N2 Mixtures in Dielectric Barrier Discharge Plasma

LIU Jing;NIU Jin-Hai;XU Yong;ZHU Ai-Min;SUN Qi;NIE Long-Hui   

  1. Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian 116024
  • Received:2005-04-13 Revised:2005-06-24 Published:2005-12-15
  • Contact: XU Yong E-mail:labplpc@dlut.edu.cn

Abstract: The optical emission spectroscopy of NO/N2 in dielectric barrier discharge (DBD) plasmas using a. c. with frequeucies of 50 Hz and 5 kHz has been studied at atmospheric pressure. Excited-state nitrogen atom was detected at 632, 674.5, 715.5 and 742 nm. The concentrations of the mixtures were measured by using chemilluminescence NOx analyzer and N2O infrared gas analyzer; the production of O2 was also monitored by an on-line mass spectrograph after the discharge. The reaction mechanism of the removal of NO in N2 in DBD plasma was discussed.

Key words: Atmospheric pressure, Dielectric barrier discharge, Plasma, NO, Nitrogen atom, Optical emission spectroscopy, MS

MSC2000: 

  • O643