Physical Chemistry of Complex Oxides for Energy and Information Technologies

 

Complex Oxides for Energy and Information Technologies

 

Research Areas

  • Ion transport in materials for energy and information technologies
  • Surface reactions on oxide (electro-)catalysts
  • Processes at hetero-interfaces, grain boundaries and dislocations in oxides: thermodynamics and kinetics
  • Atomistic simulations of point-defect processes in solids and at their extended defects
  • Nanoscale effects on ion transport: high-field, strain, interface-proximity, confinement

 

Research methods

  • Nanoscale chemical analysis with Secondary Ion Mass Spectrometry (SIMS)
  • Electrochemical Impedance Spectroscopy (EIS)
  • Molecular Dynamics (MD) and Molecular Statics (MS) simulations with classical pair potentials
  • Density-Functional-Theory (DFT) calculations
  • Continuum modelling of transport processes with Finite-Element and Finite-Difference methods


Research Projects

  • SFB 917 - Nanoswitches: Direct investigations of ion transport in oxide systems „HfO2, Ta2O5, SrTiO3“
  • EPISTORE: Nanoscale materials for high-density energy conversion devices (Horizon 2020 EU-Projekt)
  • SPP 1959: Electric field assisted diffusion and sintering of polycrystalline cerium oxide, together with Prof. O. Guillon (IEK-1) and Prof. R. Dunin-Borkowski (ER-C)
  • Poisson–Cahn theory, together with Prof. D. S. Mebane, WVU
  • Grain boundaries in UO2, together with Dr. F. Brandt (IEK-6) and Prof. J. Mayer (GFE)
  • Oxygen surface exchange on CeO2, together with Prof. A. Klein, TUD
  • Oxygen diffusion in mixed conducting perovskites, together with Prof. D. C. Sinclair, University of Sheffield
  • Oxygen transport in oxides, together with Prof. H. L. Tuller, MIT
  • Defects and diffusion in ferroic perovskites

 

Recent and forthcoming publications