Activation of CO2 on ZnO surfaces and subsequent reactions with nucleophilic coadsorbates

• Applicant: Professor Dr. Christof Wöll
• Subject Area: Physical Chemistry of Solids and Surfaces, Material Characterisation
• Term: from 2009 to 2015
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 102847604

• Final Report Year: 2014

Final Report Abstract

One of the most important results of the project was the demonstration that vibrational spectroscopy is the ideal tool to study the chemical activity of oxide particles. Whereas results for powders had been available for a long time, the interpretation of the IR-powder data was always difficult or even impossible because of the lack of adequate reference data for single crystal surfaces. In the course of the project it has been demonstrated that with the availability of reference data for single crystal surfaces recorded either by EELS or IRRAS the interpretation of the powder data is much more straightforward. In that sense the project has also laid the foundation for an important development in the field which in the meantime has led to additional publications. The project has also laid the foundation for the first demonstration that IRRAS spectroscopy on ZnO substrates is possible in a reflection geometry on single crystals.

Publications

• Probing the interaction of the amino acid alanine with the surface of ZnO(10(1)over-bar0). Journal of Colloid and Interface Science 2009,338 (1), 16-21
  Gao, Y. K.; Traeger, F.; Shekhah, O.; Idriss, H.; Woll, C.
  
• Hydrogen Loading of Oxide Powder Particles: A Transmission IR Study for the Case of Zinc Oxide. Chemphyschem 2010,11 (17), 3604-3607
  Noei, H.; Qiu, H. S.; Wang, Y. M.; Muhler, M.; Woll, C.
  
• Activation of Carbon Dioxide on ZnO Nanoparticles Studied by Vibrational Spectroscopy. The Journal of Physical Chemistry C 2011,115 (4), 908-914
  Noei, H.; Wöll, C.; Muhler, M.; Wang, Y.
  
• The interaction of carbon monoxide with clean and surface-modified zinc oxide nanoparticles: A UHV-FTIRS study. Appl Catal a-Gen 2011,391 (1-2), 31-35
  Noei, H.; Wöll, C.; Muhler, M.; Wang, Y. M.
  
• Thermal behavior of MOCVD-grown Cu-clusters on ZnO(10(1)over-bar0). Physical Chemistry Chemical Physics 2012,14 (5), 1654-1659
  Kroll, M.; Lober, T.; Schott, V.; Woll, C.; Kohler, U.
  
• Vibrational spectroscopic studies on pure and metal-covered metal oxide surfaces. Physica status solidi (b) 2013, 250 (6), 1204–1221
  Noei, H.; Jin, L.; Qiu, H.; Xu, M.; Gao, Y.; Zhao, J.; Kauer, M.; Wöll, C.; Muhler, M.; Wang, Y.