PGI Kolloquium: Prof. Dr. Manfred Kappes, Karlsruhe Institute of Technology, Karlsruhe, Germany

Online Vortrag

Hinweis: Den Link zum Online-Vortrag erhalten Sie mit der E-Mail-Einladung, die üblicherweise einige Tage vor dem Vortrag versandt wird, oder auf Anfrage von der unten genannten Kontaktperson.

Information about Isolated Metal Clusters from Theory and Experiment

Transition metal clusters are of interest in fields ranging from nanoscience to heterogeneous catalysis. Properties depend not only on nuclearity but also on environmental interactions. The latter can be reduced by ligand passivation at the expense of modifying the electronic and geometric structure of the metal cluster cores. We study this by probing isolated clusters with trapped ion electron difraction (TIED) and high resolution trapped ion mobility spectrometry (TIMS) – comparing experimental results with quantum chemical predictions. The talk will focus on two applications of this approach:  (i) hydrogenated ruthenium clusters [1] and (ii) ligand stabilized coinage metal nanoalloys [2]. 

[1] Structural Phase Transition of Ruthenium Cluster Hydrides; A. Hehn, D Bumuller, W. Klopper, M. Kappes, and D. Schoo

ss,

,

, 14306 (2020).

[2] Nanogymnastics: Visualization of Intercluster Reactions by High-Resolution Trapped Ion Mobility Mass Spectrometry; A. Baksi, E. Schneider, P. Weis, K. R. Krishnadas, D. Ghosh, H. Hahn, T. Pradeep and M. M. Kappes, J. Phys. Che

m. C

,

, 28477 (2019).

Kontakt

Martina Luysberg

Telefon: +49 2461 61-2417

Fax:  +49 2461 61-6444

E-Mail: m.luysberg@fz-juelich.de