The research will focus on the fundamentals of non-equilibrium plasmas and their interaction with the surrounding media such as solids or liquids using spectroscopic techniques.
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PIP
Displaying 11 - 18 of 18 datasets
Nitrogen fixation and H2O2 production by an atmospheric pressure plasma jet operated in He-H2O-N2-O2 gas mixtures
PIP
Atmospheric pressure plasmas are widely used for nitrogen fixation processes to produce ammonia NH3 or nitrogen oxides NOx , including for example nitrite NO2– or nitrate NO3–. Small scale atmospheric pressure plasma jets (APPJs) can provide the...
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Production and transport of plasma-generated hydrogen peroxide from gas to liquid
PIP
In this work, the transport of hydroxyl radicals and hydrogen peroxide from a humid atmospheric pressure plasma jet into plasma-treated liquids is analysed. The concentration of H2O2 was measured by a spectrophotometric approach using the reagent...
Spatially and temporally resolved atomic oxygen densities in a micro cavity plasma array
PIP
Micro cavity plasma arrays have numerous applications, such as the treatment of volatile organic compounds (VOCs) or the generation of new species. In recent years, the focus has also shifted to plasma catalysis, in which catalytic surfaces are...
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Validation of in-situ diagnostics for the detection of OH and H2O2 in liquids treated by a humid atmospheric pressure plasma jet
PIP
A humid atmospheric pressure plasma jet was used to treat an aqueous liquid. The transport of hydrogen peroxide and hydroxyl from the plasma to the liquid was analyzed. Two in-situ liquid diagnostics for each species were compared and validated....
State enhanced actinometry in the COST microplasma jet
PIP
A new actinometry approach, state enhanced actinometry (SEA), is presented. This diagnostic uses the emission of the atomic states O(3p3P (λ=844.6 nm), Ar(2p1) (λ=750.4 nm) and He(33S) (λ=706.5 nm) and allows the atomic oxygen density and the...
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2d spatially resolved O atom density profiles in an atmospheric pressure plasma jet: from the active plasma volume to the effluent
PIP
Two-dimensional spatially resolved absolute atomic oxygen densities are measured within an atmospheric pressure micro plasma jet and in its effluent. The plasma is operated in helium with an admixture of 0.5% of oxygen at 13.56 MHz and with a...
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Dissipated electrical power and electron density in an RF atmsopheric pressure helium plasma jet
PIP
Here we present a method for the operando determination of absolute absorbed power in an RF atmospheric pressure helium plasma discharge using miniaturized probes. A detailed error analysis demonstrates the reliability of the measured power...