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Published on: March 22, 2019
Generation of Ammonia in a Pulsed Hollow Cathode Discharge Operated in an Ar/H2/N2 Gas Mixture Detected by Fourier
Rainer Hippler1,2, Martin Cada1, Antonin Knizek3
1Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18200 Prague, Czech Republic.
Abstract:
A hollow cathode discharge with a copper nickel cathode (Cu50Ni50) was operated in an Ar/H2/N2 gas mixture. Optical emission spectroscopy revealed the formation of NH radicals, which serve as precursors for NH3 formation. Ion mass spectrometry showed the formation of NH3 + and NH4 + ions indicating NH3 formation. Gas samples taken at the exhaust of the vacuum system were analyzed by Fourier transform infrared spectroscopy. Clear evidence for NH3 formation was obtained from these measurements.
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