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Hyperthermal velocity distributions of recombinatively-desorbing oxygen from Ag(111).

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.

SUBMITTER: Dorst AC

PROVIDER: S-EPMC10433164 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Hyperthermal velocity distributions of recombinatively-desorbing oxygen from Ag(111).

Dorst Arved C AC Dissanayake Rasika E A REA Schauermann Daniel D Knies Sofie S Wodtke Alec M AM Killelea Daniel R DR Schäfer Tim T

Frontiers in chemistry 20230802

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 ...[more]

PMID: 37601906

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