DPG Phi
Verhandlungen
Verhandlungen
DPG

Greifswald 2024 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

P: Fachverband Plasmaphysik

P 10: Atmospheric Pressure Plasmas and their Applications II

P 10.7: Talk

Tuesday, February 27, 2024, 15:45–16:00, WW 1: HS

Novel methods for determination and manipulation of surface charges in an atmospheric DBD microplasma — •Robin Labenski1, David Steuer1, Henrik van Impel1, Marc Böke2, Volker Schulz-von der Gathen2, and Judith Golda11Plasma Interface Physics, Ruhr-University Bochum — 2Experimental Physics II, Ruhr-University Bochum

In photo- and electrocatalysis it is already well-established that surface charges can alter the chemical adsorption and reaction paths of the catalyst. However, the novel realm of plasma catalysis lacks experimental exploration regarding the impact of plasma-induced surface charges on catalysis. We pave that way by introducing a straightforward method for precisely charging the dielectric (catalyst) using a microplasma at atmospheric pressure, while also monitoring the level of deposited surface charge over time. Through pre-charging we examine its effect on re-ignition and forming of equilibria in the discharge. Additionally, a laser assisted technique is introduced to further fine-tune the amount of surface charge on the dielectric and assess the plasma's response to this subtle manipulation of surface charge.

Keywords: surface charge; microplasma; catalysis; DBD; atmospheric pressure

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2024 > Greifswald