Bulletin of the American Physical Society
75th Annual Gaseous Electronics Conference
Volume 67, Number 9
Monday–Friday, October 3–7, 2022;
Sendai International Center, Sendai, Japan
The session times in this program are intended for Japan Standard Time zone in Tokyo, Japan (GMT+9)
Session FT2: Plasma Chemical Synthesis and Conversion
10:00 AM–12:00 PM,
Tuesday, October 4, 2022
Sendai International Center
Room: Shirakashi 1
Chair: Masaharu Shiratani, Kyushu University
Abstract: FT2.00003 : The role of reactive oxygen and nitrogen species on the conversion of volatile organic compounds in a twin surface dielectric barrier discharge*
10:30 AM–11:00 AM
Presenter:
Lars Schücke
(Ruhr University Bochum)
Authors:
Lars Schücke
(Ruhr University Bochum)
Arisa Bodnar
(Ruhr University Bochum)
Alexander Böddecker
(Ruhr University Bochum)
Niklas Peters
(Ruhr University Bochum)
Andrew R. Gibson
(Ruhr University Bochum)
Ihor Korolov
(Ruhr University Bochum)
Martin Muhler
(Ruhr University Bochum)
Peter Awakowicz
(Ruhr University Bochum)
A twin surface dielectric barrier discharge (SDBD), specially designed for the conversion of VOCs in synthetic air, has been previously studied regarding its fundamental plasma parameters, power efficiency, gas phase chemistry, gas dynamics, and conversion of frequently used hydrocarbons with and without catalyst [1-3]. However, the complex interaction of the different media and the underlying conversion mechanism is not yet fully understood.
Here, techniques such as flame ionization detectors and gas chromatography-mass spectrometry are used to gain insight into the occurring gas-phase chemistry, possible reaction pathways, and advantages of the presented discharge over comparable techniques. Optical absorption spectroscopy is used to measure absolute densities of selected reactive oxygen and nitrogen species to further elucidate the conversion mechanism based on these radicals. A mode-transition effect, also known from literature [4], can be observed for different volumetric flow rates and be replicated in both, the experiment and a complementary zero dimensional chemistry model. Finally, flow analysis by schlieren imaging is performed to illustrate the comparably high performance of the system, despite the low plasma to surrounding gas ratio.
[1] B. Offerhaus et al., Plasma Processes and Polymers 14 (2019).
[2] L. Schücke et al., Plasma Sources Science and Technology 29 (2020).
[3] N. Peters et al., Plasma Processes and Polymers 18 (2021).
[4] T. Shimizu et al., New Journal of Physics 14 (2012).
*This study was funded by the German Research Foundation (DFG) with the CRC 1316 project A7.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700