Detection of OH(A2σ+) and O(1D) emission spectrum generated in a pulsed corona plasma

Dong Nam Shin; Chul Woung Park; Jae Won Hahn

Detection of OH(A²σ⁺) and O(¹D) emission spectrum generated in a pulsed corona plasma

Dong Nam Shin, Chul Woung Park, Jae Won Hahn

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of emission light, by using separate ground and trigger modules for emission spectrometry. The emission spectra between dry and humid gas mixtures have shown remarkable differences in the region of 305-309 nm wavelength, corresponding with OH(A²Σ⁺) emission to its ground state. This result implies that the OH emission spectra generated by the corona discharge can be used to monitor the chemical reaction of OH radical responsible for the removal of air pollutants.

Original language	English
Pages (from-to)	228-232
Number of pages	5
Journal	Bulletin of the Korean Chemical Society
Volume	21
Issue number	2
Publication status	Published - 2000 Feb 20

All Science Journal Classification (ASJC) codes

Chemistry(all)

Cite this

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title = "Detection of OH(A2σ+) and O(1D) emission spectrum generated in a pulsed corona plasma",

abstract = "We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of emission light, by using separate ground and trigger modules for emission spectrometry. The emission spectra between dry and humid gas mixtures have shown remarkable differences in the region of 305-309 nm wavelength, corresponding with OH(A2Σ+) emission to its ground state. This result implies that the OH emission spectra generated by the corona discharge can be used to monitor the chemical reaction of OH radical responsible for the removal of air pollutants.",

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AU - Shin, Dong Nam

AU - Park, Chul Woung

AU - Hahn, Jae Won

PY - 2000/2/20

Y1 - 2000/2/20

N2 - We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of emission light, by using separate ground and trigger modules for emission spectrometry. The emission spectra between dry and humid gas mixtures have shown remarkable differences in the region of 305-309 nm wavelength, corresponding with OH(A2Σ+) emission to its ground state. This result implies that the OH emission spectra generated by the corona discharge can be used to monitor the chemical reaction of OH radical responsible for the removal of air pollutants.

AB - We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of emission light, by using separate ground and trigger modules for emission spectrometry. The emission spectra between dry and humid gas mixtures have shown remarkable differences in the region of 305-309 nm wavelength, corresponding with OH(A2Σ+) emission to its ground state. This result implies that the OH emission spectra generated by the corona discharge can be used to monitor the chemical reaction of OH radical responsible for the removal of air pollutants.

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Detection of OH(A²σ⁺) and O(¹D) emission spectrum generated in a pulsed corona plasma

Abstract

All Science Journal Classification (ASJC) codes

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