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Molecular Hydrogen Formation On Low Temperature Surfaces In Temperature Programmed Desorption Experiments, Gianfranco Vidali, Ling Li, J. Roser, E. Congiu
Molecular Hydrogen Formation On Low Temperature Surfaces In Temperature Programmed Desorption Experiments, Gianfranco Vidali, Ling Li, J. Roser, E. Congiu
Physics - All Scholarship
The study of the formation of molecular hydrogen on low temperature surfaces is of interest both because it allows to explore elementary steps in the heterogeneous catalysis of a simple molecule and because of the applications in astrochemistry. Here we report results of experiments of molecular hydrogen formation on amorphous silicate surfaces using temperature-programmed desorption (TPD). In these experiments beams of H and D atoms are irradiated on the surface of an amorphous silicate sample. The desorption rate of HD molecules is monitored using a mass spectrometer during a subsequent TPD run. The results are analyzed using rate equations and …