Bulletin of the American Physical Society
77th Annual Gaseous Electronics Conference
Monday–Friday, September 30–October 4 2024; San Diego, California
Session IT3: Gas-Phase Plasma Chemistry I
1:30 PM–3:30 PM,
Tuesday, October 1, 2024
Room: Great Room 5
Chair: Zoltan Donko, Wigner Research Center for Physics
Abstract: IT3.00008 : Control of NOx formation and transfer in a flowing plasma reactor
3:15 PM–3:30 PM
Presenter:
Margherita Altin
(Maastricht University)
Authors:
Margherita Altin
(Maastricht University)
Xinyu Lei
(Huazhong University of Science and Technology)
Tom Butterworth
(Maastricht University)
Gerard van Rooij
(Maastricht University)
Paola Diomede
(Maastricht University)
Collaboration:
M. Altin, X. Lei, T. Butterworth, G. J. van Rooij, P. Diomede
In situ Raman spectroscopy is employed to yield maps of temperature and species concentrations. These measurements revealed NO molar fractions up to 0.08 at typical temperatures of around 5000 K, while clearly showing absence of vibrational-translational non-equilibrium.
The details of these measurements are interpreted by comparison with results from a quasi-1D plasma chemistry model. The model reproduces the experimentally measured concentrations quantitatively and demonstrates that excited species are insignificant for the NOx production. This knowledge was used to provide strategies to control and optimize NO output from the reactor beyond the current state of the art.
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