Electrochemistry

The research activity of the laboratory concerns the electrochemical processes occurring in fuel cells, corrosion systems and hydrometallurgy.

MAIN RESEARCH TOPICS

  • High-temperature oxide and carbonate fuel cells fed by gaseous fuels or solid carbon
  • Kinetics and mechanism of the oxygen reduction reaction in fuel cells
  • Kinetics and mechanism of the oxidation of fuel in fuel cells
  • Catalysis processes in fuel cells
  • Preparation of the materials for the high-temperature fuel cells
  • Chemical transport processes in solid oxide fuel cell
  • Photocatalysis on titanium dioxide
  • Deposition of metal alloys and metal/ceramic composites by electrolysis
  • Corrosion of metals and metal alloys and corrosion protection
  • Surface properties of the minerals

METHODS

Mainly electrochemical methods like impedance spectroscopy and cyclic voltammetry are used in the investigations. Those methods are frequently combined with other methods of surface characterization like scanning and transmission electron microscopy (SEM, TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), optical microscopy and spectrometry (IR, UV-VIS) and Scanning Probe Microscopy (STM, AFM). Several computerized systems enabling the application of any electrochemical method and the X-ray fluorescence spectrometer (EDX) for the chemical analysis of the composed samples are available in the laboratory.

MAIN ACHIEVEMENTS

  • Estimation of the position on the electronic level energy scale of surface states created at the interface TiO2/aqueous solution by doping TiO2 with transition metals
  • Semi-quantitative description of the interactions between minerals in short-circuited galvanic cells
  • Method of the preparation of Ag/TiO2 photo-catalyst showing high catalytic activity

Fig. Composited material for the cathode of a high-temperature oxide fuel cell composed of lanthanum-strontium manganite and silver

COOPERATION

  • Vaasa University of Technology, Finland
  • AGH University of Science and Technology, Faculty of Fuels and Energy, Krakow, Poland
  • Silesian University of Technology, Faculty of Chemistry, Gliwice, Poland
  • Silesian University of Technology, Institute of Materials Science, Katowice, Poland