Heidelberg 2015 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 4: Ion Traps, Molecules, Clusters, Decay and Reactions
MS 4.3: Vortrag
Dienstag, 24. März 2015, 11:45–12:00, PH/HS2
New setup to study the reactivity of metal clusters in the gas phase — •Daniel Neuwirth1, Jan Eckhard1, Kathrin Lange1, Bradley Visser2, Martin Tschurl1, and Ueli Heiz1 — 1Lehrstuhl für Physikalische Chemie & Catalysis Research Center, Chemistry Department, Technische Universität München, Lichtenbergstraße 4, 85748 Garching bei München, Germany — 2Paul-Scherrer Institute, 5232 Villigen PSI, Switzerland
Many properties of metal clusters differ significantly from the properties of the bulk material. For example the reactivity of such clusters depends often on charge and size. Within our group we want to investigate reactions of metal clusters with various molecules in the gas phase. Therefore clusters are produced with a laser-vaporization-cluster-source, size-selected with a quadrupole mass filter and stored within a ring electrode ion trap. The trap is filled with a buffer gas , consequently clusters and reaction products are constantly thermalized. The special geometry of the trap allows the controlled ejection of the reaction products into a reflectron mass spectrometer. As reaction time, temperature and concentration of the reactive gas can be varied, the kinetics of the reaction can be determined. First results of this experimental setup will be presented.