Experimental Study of Microwave-Induced Discharge and Mechanism Analysis Based on Spectrum Acquisition

Title: Experimental Study of Microwave-Induced Discharge and Mechanism Analysis Based on Spectrum Acquisition
Authors: Wang, W
Fu, L
Sun, J
Grimes, S
Mao, Y
Zhao, X
Song, Z
Item Type: Journal Article
Abstract: When conductor or semiconductor materials are exposed to microwave radiation in different atmospheres (Ar, He, N2, and O2+N2) intense discharge phenomena are observed. The discharge phenomena, generated when strips of the metals Fe, Al, and Zn or particles of the semiconductor SiC are irradiated with microwaves, are characterized experimentally using spectrum acquisition and analysis. Filamentary discharge is observed in an Ar atmosphere while spark discharge is observed in He, N2, and O2+N2 atmospheres. The spectral lines of the discharges are concentrated mainly in the visible region, but there are also peaks in the ultraviolet region. The nature of the discharge and the specific details of the spectra are influenced by: 1) the target metal or semiconductor used; 2) the atmosphere; and 3) the microwave field characteristics. The spectra always consist of two parts: one corresponding to the target metal or semiconductor irradiated by the microwaves and the other due to the formation of the high-energy excitation states of atoms, molecules, and ions induced in the gaseous atmosphere. The microwave-induced discharge and the corresponding luminous and plasma effects have potential uses as energy sources in many applications including chemical or photocatalytic enhancement of reactions and the destruction of volatile organic compounds for which preliminary results are encouraging.
Issue Date: 29-Jun-2017
Date of Acceptance: 6-Jun-2017
URI: http://hdl.handle.net/10044/1/52053
DOI: https://dx.doi.org/10.1109/TPS.2017.2715800
ISSN: 0093-3813
Publisher: Institute of Electrical and Electronics Engineers
Start Page: 2235
End Page: 2242
Journal / Book Title: IEEE Transactions on Plasma Science
Volume: 45
Issue: 8
Copyright Statement: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Science & Technology
Physical Sciences
Physics, Fluids & Plasmas
Physics
Discharge
electronic transition
microwave
spectrum analysis
ATMOSPHERIC-PRESSURE PLASMA
ASSISTED PYROLYSIS
WASTE TIRES
IRRADIATION
DIAGNOSTICS
CARBON
Science & Technology
Physical Sciences
Physics, Fluids & Plasmas
Physics
Discharge
electronic transition
microwave
spectrum analysis
ATMOSPHERIC-PRESSURE PLASMA
ASSISTED PYROLYSIS
WASTE TIRES
IRRADIATION
DIAGNOSTICS
CARBON
0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics
0906 Electrical And Electronic Engineering
Fluids & Plasmas
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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