Oliver Bünermann How Can We Experimentally Determine Why Hydrogen Atoms Are Absorbed on Metal Surfaces?

Oliver Bünermann is the Leader of the atom-surface scattering dynamics Research Group at the Max Planck Institute for Biophysical Chemistry and the University of Göttingen Institute for Physical Chemistry (Germany). After receiving his diploma and PhD from the Faculty of Physics at the University of Bielefeld, Bünermann went on to do post-doctoral research at the Albert-Ludwigs-Universität Freiburg and the University of California, Berkley. As the leader of the atom-surface scattering dynamics research group, Bünermann investigates hydrogen atom scattering through collision experiments. This will provide the background for developing new theoretical approaches to surface chemistry.

Area of Research

Biophysical Chemistry, Dynamics at Surfaces

Sven Kaufmann, Dirk Schwarzer, Christian Reichardt, Alec M. Wodtke and Oliver Bünermann. "Generation of Ultra-Short Hydrogen Atom Pulses by Bunch-Compression Photolysis." Nature Communications 5 (2014): 5373.  
Oliver Bünermann, Oleg Kornilov, Daniel J. Haxton, Stephen R. Leone, Daniel M. Neumark and Oliver Gessner. "Ultrafast Probing of Ejection Dynamics of Rydberg Atoms and Molecular Fragments from Electronically Excited Helium Nanodroplets." Journal of Chemical Physics 137 (2012): 214302.  
Oliver Bünermann, Georg Droppelmann, Alberto Hernando, Ricardo Mayol and Frank Stienkemeier. "Unraveling the Absorption Spectra of Alkali Metal Atoms Attached to Helium Nanodroplets." The Journal of Physical Chemistry A 111 (2007): 12684-12694.  

since 2010

Group Leader "Atom-Surface Scattering Dynamics"

Max Planck Society (more details)

Max Planck Institute for Biophysical Chemistry and University of Göttingen, Institute for Physical Chemistry

2009-2010

Post-Doctoral Researcher

University of California, Berkeley

Department of Chemistry

2006-2009

Post-Doctoral Researcher

Albert Ludwigs University of Freiburg (Albert-Ludwigs-Universität Freiburg)

Faculty of Physics

2006

PhD in Physics

University of Bielefeld (Universität Bielefeld)

Faculty of Physics

2003

Diploma in Physics

University of Bielefeld (Universität Bielefeld)

Faculty of Physics

German Bunsen Society for Physical Chemistry (Deutsche Bunsen-Gesellschaft für physikalische Chemie) (DBG)

German Physical Society (Deutsche Physikalische Gesellschaft) (DPG)

Fellowships

Executive Director of the International Center for Advanced Studies of Energy Conversion (ICASEC), Georg-August University of Göttingen (since 2015)

Forschungsstipendium, DFG (2009)

Prizes

PhD Thesis Award 2007 – Westfälisch Lippischen Universitätsgesellschaft (2008)

© Maximilian Dörrbecker

Max Planck Society


"The Max Planck Society is Germany's most successful research organization. Since its establishment in 1948, no fewer than 18 Nobel laureates have emerged from the ranks of its scientists, putting it on a par with the best and most prestigious research institutions worldwide. The more than 15,000 publications each year in internationally renowned scientific journals are proof of the outstanding research work conducted at Max Planck Institutes – and many of those articles are among the most-cited publications in the relevant field." (Source)

Institute

Max Planck Institute for Biophysical Chemistry

"Research at the Max Planck Institute for Biophysical Chemistry focuses on the fundamental mechanisms that regulate and control life processes: How is genetic information correctly translated into proteins? How do nerve cells communicate with each other? How is cellular logistics controlled? On the organismal level, researchers at the institute study the circadian rhythms of the vertebrate, or differentiation and development in multicellular organisms." (Source)

Map

Although very light weight, hydrogen atoms have a high probability to be absorbed by a metal surface upon collision. In this video, OLIVER BÜNERMANN explains collision experiments carried out to determine why this is the case. During the experiment, they shot a hydrogen atom beam at a gold surface and at an insulator, measured the speed and direction of the atoms bouncing back from each surface and compared the results. The hydrogen atoms scattered from the gold surface suffered a greater energy loss than the one scattered from the insulator. This difference indicates that translational energy carried in the hydrogen atom is transferred into electronic excitations in the metal leading to the high probability of absorption. The experiment results match the predictions of the theoretical model explained by Alexander Kandratsenka.

LT Video Publication DOI: http://dx.doi.org/10.21036/LTPUB10225

Electron-Hole Pair Excitation Determines the Mechanism of Hydrogen Atom Adsorption

  • Oliver Bünermann, Hongyan Jiang, Yvonne Dorenkamp, Alexander Kandratsenka, Svenja M. Janke, Daniel J. Auerbach and Alec M. Wodtke
  • Science
  • Published in 2015

Chicago

Oliver Bünermann, Hongyan Jiang, Yvonne Dorenkamp, Alexander Kandratsenka, Svenja M. Janke, Daniel J. Auerbach and Alec M. Wodtke. "Electron-Hole Pair Excitation Determines the Mechanism of Hydrogen Atom Adsorption." Science 350 (2015): 1346-1349.