|
|
Influence of carbon monoxide on electrical discharge initiated processes in prebiotic atmospheres
Veselá, Jana ; Országh,, Juraj (referee) ; Krčma, František (advisor)
This work focuses on discharge-initiated processes in prebiotic atmospheres based on carbon monoxide. The aim of this work was to determine how the composition of different reaction mixtures consisting of carbon monoxide with gaseous additives influences type and amount of plasma-generated products. The compositions of gaseous products formed by a chemical reaction were investigated using mass spectrometry (proton transfer reaction ionisation with time-of-flight detector). The compositions of reactive particles presented in plasma were determined by using optical emission spectroscopy. The presence of many hydrocarbons, nitriles, amines, aldehydes and alcohols was confirmed by means of mass spectrometry in mixture containing 200 sccm carbon monoxide, 4 sccm hydrogen and 4 sccm nitrogen. Optical emission spectroscopy has shown that the main reactive particles in plasma were atomic hydrogen, carbon and oxygen, C2 molecule and CN radical. The presented properties can for example be used for enrichment of existing knowledge about prebiotic Earth atmosphere, chemical processes in interstellar mass and atmospheres of exoplanets. That´s because carbon monoxide is one of the most common molecules present in universe.
|
guest ::
