论文类型：期刊论文

第一作者：Liu, F

通讯作者：Liu, F (reprint author), Dalian Univ Technol, State Key Lab Mat Modificat Laser Ion & Electron, Dalian 116024, Peoples R China.

合写作者：Wanga, W,Zheng, W,Wang, Y

发表时间：2006-06-01

发表刊物：EUROPEAN PHYSICAL JOURNAL D

收录刊物：SCIE、Scopus

卷号：38

期号：3

页面范围：515-522

ISSN号：1434-6060

摘要：In this study, analysis of optical emission spectra are used for the detection of OH (3(p)(5)P) radicals and O (3(p)(5)P), H-alpha (3P) and N (3(p)(4)P) active atoms produced by the high-voltage bi-directional pulsed corona discharge of N-2 and H2O mixture gas in a needle-plate reactor at one atmosphere. The relative vibrational populations and the vibrational temperature of N-2 (C, v') are determined. The effects of pulse peak voltage, pulse repetition rate and the added O-2 flow rate on the relative populations of OH (A(2)Sigma) radicals and O (3(p)(5)P), H-alpha (3P) and N (3(p)(4)P) active atoms are investigated. It is found that when pulse peak voltage and pulse repetition rate are increased, the relative populations of those excited states radicals rise correspondingly. The relative population of OH (A(2)Sigma) radicals decreases with increasing the flow rate of oxygen. The relative populations of O (3(p)(5)P), H-alpha (3P) and N (3(p)(4)P) active atoms increase with the flow rate of oxygen at first and exhibit a maximum value at about 30 ml/min. When the flow rate of oxygen is increased further, the relative populations of those excited states active atoms decrease correspondingly. The main involved physicochemical processes also have been discussed.

发表时间：2006-06-01