CHARGE-EXCHANGE OF SWIFT MOLECULES H-2(+), H-2, CO2+ AND CO2, AT PD(111) SURFACES

Autor(en): SCHLATHOLTER, T
HEILAND, W
Stichwörter: ADSORPTION; AG(111); ALKALI; CHEMISORPTION; HYDROGEN; Instruments & Instrumentation; IONS; Nuclear Science & Technology; OXYGEN; PD(100) SURFACE; Physics; Physics, Atomic, Molecular & Chemical; Physics, Nuclear; PT(111); SCATTERING
Erscheinungsdatum: 1995
Herausgeber: ELSEVIER SCIENCE BV
Journal: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volumen: 100
Ausgabe: 2-3
Startseite: 352
Seitenende: 355
Zusammenfassung: 
Molecular ions and neutral molecules are scattered at 500 eV and at grazing incidence from metal surfaces. H-2(+) and CO2+ are subject to charge exchange processes which lead in part to dissociation. In the case of CO2 evidence for negative molecular ion formation is found. Potassium `'poisons'' the dissociation of H-2 on Pd. These findings are supported by comparison of different metals, Pd(111) and Pd(111) covered with a monolayer of K. The dissociation probability of H-2(+) and H-2(0) decreases at the K-covered surface, in the case of CO2+ and CO20 an increase is found. CO2+ on Pd(111) K dissociates completely.
Beschreibung: 
10th International Workshop on Inelastic Ion-Surface Collisions (IISC-10), GRAND TARGHEE RESORT, WY, AUG 08-12, 1994
ISSN: 0168583X
DOI: 10.1016/0168-583X(94)00847-7

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