Dorst AC, Dissanayake REA, Schauermann D, Knies S, Wodtke AM, Killelea DR, Schäfer T. Hyperthermal velocity distributions of recombinatively-desorbing oxygen from Ag(111).
Front Chem 2023;
11:1248456. [PMID:
37601906 PMCID:
PMC10433164 DOI:
10.3389/fchem.2023.1248456]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 07/20/2023] [Indexed: 08/22/2023] Open
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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