A6: Pulsed plasma interaction with catalytic surfaces within micro-structured array devices

Principal Investigators: J. Golda, M. Böke, V. Schulz-von der Gathen

Team

Schulz-von der Gathen, Volker (Principal Investigator)

Böke, Marc (Principal Investigator)

Steuer, David (PhD)

van Impel, Henrik (Staff)

Golda, Judith (Principal Investigator)

Description

A metal-based microcavity array discharge enclosed by quartz dielectrics forms an in-plasma-catalyst reactor. These devices allow to integrate dielectric, catalytic surfaces as the cavity bottom. The plasma parameters as well as the distribution of the discharges inside and above the cavities are strongly dependent on external parameters such as cavity dimension, pressure and voltage. The project investigates the influence of the plasma conditions on the catalytic processes by observing the volume close to the catalyst following the gas flow. Especially the role of charged species is investigated by phase- and space-resolved diagnostics. Ex-situ measurements of the catalytic surfaces round off the experiments.

Publications

• Electric field strengths within a micro cavity plasma array measured by Stark shift and splitting of a Helium line pair
  S. Dzikowski, D. Steuer, S. Iseni, J. Golda, M. Böke, V. Schulz-von der Gathen
  Plasma Sources Sci. Technol. 31 (2022), 065014
• State enhanced actinometry in the COST microplasma jet
  D. Steuer, H. van Impel, A. R. Gibson, V. Schulz-von der Gathen, M. Böke, J. Golda
  Plasma Sources Sci. Technol. 31 (2022), 10LT01
• Dedicated setup to isolate plasma catalysis mechanisms
  C. Stewig, T. Urbanietz, L. Chauvet, M. Böke, A. von Keudell
  J. Phys. D: Appl. Phys. 54, 134005 (2021)
• Modular constructed metal-grid arrays - an alternative to silicon-based microplasma devices for catalytic applications
  S. Dzikowski, R. Michaud, H. Böttner, R. Dussart, M. Böke, V. Schulz-von der Gathen
  Plasma Sources Sci. Technol. 29 (2020) 035028
• Nanosecond pulsed discharges in distilled water - Part II: Line emission and plasma propagation
  A. von Keudell, K. Grosse, V. Schulz-von der Gathen
  Plasma Sources Sci. Technol. 29, 085021 (2020)
• Nanosecond pulsed discharges in distilled water - Part I: Continuum radiation and plasma ignition
  K. Grosse, V. Schulz-von der Gathen, A. von Keudell
  Plasma Sources Sci. Technol. 29, 095008 (2020)
• Intra-cavity Dynamics in a Microplasma Channel by Side-on Imagining
  S. Kreuznacht, M. Böke, V. Schulz-von der Gathen
  Plasma Sources Sci. Technol. 30, 015014 (2021)
• On the validity of neutral gas temperature by emission spectroscopy in micro-discharges close to atmospheric pressure
  S Iseni, R Michaud, P Lefaucheux, G. B. Sretenović, V Schulz-von der Gathen, R. Dussart
  Plasma Sources Sci. Technol. 28 (2019) 065003
• Direct Current microhollow cathode discharges on silicon devices operating in argon and helium
  R. Michaud, V. Felix, A. Stolz, O. Aubry, Ph. Lefaucheux, S. Dzikowski, V. Schulz-von der Gathen, L. Overzet, R. Dussart
  Plasma Sources Sci. Technol. 27 (2018) 025005
• Non-equilibrium excitation of CO₂ in an atmospheric pressure helium plasma jet
  T. Urbanietz, M. Böke, V. Schulz-von der Gathen, A. von Keudell
  J. Phys. D 51, 345202 (2018)

Thesis

• Sebastian Dzikowski, PhD thesis - 12/2022
  Pulsed plasma interaction with catalytic surfaces within micro-structured array devices
• Marc Leimkühler, Master thesis - 11/2018
  Generation of Metastables by kHz-driven Microplasma Arrays Devices
• Simon Kreuznacht, Master thesis - 09/2019
  High resolution investigation of a microplasma channel
• Till Marth, Bachelor thesis - 12/2019
  Non-invasive determination of the gas temperature by Rayleigh scattering
• Sascha Chur, PhD thesis - ongoing
  
• Martha Finke, Bachelor thesis - 09/2022
  Absorption Measurements of Plasma-Produced Ozone
• Henrik van Impel, Bachelor thesis - 09/2021
  Diagnostik von atomarem Sauerstoff in einem Micro-Cavity-Plasmareaktor
• Robin Labenski, Master thesis - ongoing
  
• Henrik van Impel, Master thesis - ongoing
  

Further reading

• Excitation dynamics of a kHz driven micro-structured plasma channel device operated in argon,
  A. Greb, H. Böttner, J. Winter, and V. Schulz-von der Gathen,
  Plasma Sources Sci. Technol. 20 (2011) 055010
• Ignition dynamics of dry-etched vertical cavity single hole micro discharge reactors in AC regime operating in noble gases
  M. K. Kulsreshath, J. Golda, V. Felix, V. Schulz-von der Gathen, and R. Dussart,
  J. Phys. D: Appl. Phys. 47 (2014) 335202
• Helium metastable density evolution in a self-pulsing m-APPJ
  S. Spiekermeier, D. Schröder, V. Schulz-von der Gathen, M. Böke, and J. Winter
  J. Phys. D 48 (2015) 035203