Work

Alignment and impact angular dependence to O 2 sticking and dissociation on Pt(111) and close-packed steps

Year: 2022

Type: article

Abstract: molecules. Sticking probabilities vary significantly for helicoptering and cartwheeling molecules. Our data can be understood if normal energy scaling holds for all molecular orientations relative to the surface. Vicinal surfaces are much more reactive than Pt(111) with little to no dependence on the molecule's alignment and a more complex angular dependence. At low incident energies, sticking probabilities are highest for incidence into step facets. The weak alignment dependence points toward predominant scattering into a physisorbed state preceding chemisorbed states over a wide angular range.

Source: Physical Chemistry Chemical Physics

DOI: 10.1039/d2cp00934j

Authors: Maatje J. E. de Willigen, Mitsunori Kurahashi, Ludo B. F. Juurlink

Institutions: Leiden University, National Institute for Materials Science

Language: English

Topic: Surface Chemistry and Catalysis

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: Japan Society for the Promotion of Science, National Institute for Materials Science

Awards: Development of high energy state-selected O2 beam and the method for a high sensitivity measurement, A rotational state-selected molecular beam study on adsorption dynamics on stepped surfaces, Surface NMR experiment by a hyperpolarized molecular beam