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Updated: Jul 18, 2025

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Hyperthermal velocity distributions of recombinatively-desorbing oxygen from Ag(111)
Arved C Dorst1,2, Rasika E A Dissanayake1,2, Daniel Schauermann1
1Institute of Physical Chemistry, University of Göttingen, Göttingen, Germany.
Abstract:
This study presents velocity-resolved desorption experiments of recombinatively-desorbing oxygen from Ag (111). We combine molecular beam techniques, ion imaging, and temperature-programmed desorption to obtain translational energy distributions of desorbing O2. Molecular beams of NO2 are used to prepare a p (4 × 4)-O adlayer on the silver crystal. The translational energy distributions of O2 are shifted towards hyperthermal energies indicating desorption from an intermediate activated molecular chemisorption state.
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