首页 | 本学科首页   官方微博 | 高级检索  
     检索      

空气电晕放电中的OH自由基发射光谱
引用本文:孙明,吴彦,张家良,李杰,王宁会,吴疆,商克峰.空气电晕放电中的OH自由基发射光谱[J].光谱学与光谱分析,2005,25(1):108-112.
作者姓名:孙明  吴彦  张家良  李杰  王宁会  吴疆  商克峰
作者单位:1. 大连理工大学静电与特种电源研究所,辽宁,大连,116024
2. 大连理工大学三束材料改性国家重点实验室,辽宁,大连,116024
基金项目:国家“863”计划课题(2001AA642010),国家自然科学基金(10276008)资助项目
摘    要:测量了大气压下向空气中喷射不饱和水蒸气的电晕放电产生的OH自由基的发射光谱。通过对光谱线强度变化的分析,研究了电场强度、放电方式、水蒸气比例等因素对OH自由基产生过程的影响,及OH自由基浓度在放电反应空间的分布特点。

关 键 词:光谱线  发射光谱  OH自由基  电晕放电  电场强度  水蒸气  空气  浓度  分布特点  比例
文章编号:1000-0593(2005)01-0108-05
修稿时间:2003年9月30日

Emission Spectra of Hydroxyl Radical Generated in Air Corona Discharge
SUN Ming,WU Yan,ZHANG Jia-liang,LI Jie,WANG Ning-hui,WU Jiang,SHANG Ke-feng.Emission Spectra of Hydroxyl Radical Generated in Air Corona Discharge[J].Spectroscopy and Spectral Analysis,2005,25(1):108-112.
Authors:SUN Ming  WU Yan  ZHANG Jia-liang  LI Jie  WANG Ning-hui  WU Jiang  SHANG Ke-feng
Institution:Institute of Electrostatics and Specific Power, Dalian University of Technology, Dalian 116024, China.
Abstract:In this paper, the relative emission intensity of the 309 nm transition band of hydroxyl radical (OH) was measured by a CCD imaging spectrometer in a pin-plane corona discharge scheme of one atmosphere pressure air injected with unsaturated water vapor from the central hole of the used pins. The influences of several factors on the OH radical production were investigated by relative ~emission intensity measurement. The production of OH radical increased with a limited increment of water vapor concentration in the mixed gas. Compared with positive DC corona discharges, more OH radicals were generated in positive pulsed corona discharges and less in negative DC corona discharges. The spatial distribution of OH radical production was also observed. Most OH radicals were produced within the range of 5 mm off the discharge pin electrode. In conclusion, this means of optical emission spectroscopy, compared with more sophisticated laser fluorescence measurements used for plasma OH production diagnostics investigation, is simpler and more effective for characterizing the OH radical potential for pollutant oxidation.
Keywords:Corona discharge  OH radical  Emission spectroscopy  Water vapor
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号