DESCRIPTION OF THE GROUP

The research interest of the group Electrochemistry of New Materials includes the theory and application of Electrochemical Impedance Spectroscopy (EIS) in electrochemical systems. Impedance Spectroscopy can be applied to exploration of interactions of matter with changing electric field, resulting from movement of static or induced dipoles and charge carriers.

Our research interests covers the following problems:

  • Theory and application of Electrochemical Impedance Spectroscopy (EIS)
  • Kinetics and thermodynamics of adsorption and absorption processes
  • Electrosorption of hydrogen on metals and semi-conductors
  • Electrocatalysis, catalytic reactions with redox mediators
  • Electrical properties of new materials
  • Photoelectrolytic cells

For our research we use i.a.potentiostat/galvanostat Solartron 1287, potentiostat PAR (Princeton Applied Research) 263 A, potentiostat PAR (Princeton Applied Research) 4000, frequency analyzer Solartron 1260 with dielectric interface 1296A.


GROUP MEMBERS

Rafał Jurczakowski Ph.D.

THE LEADER OF THE GROUP

TEAM

Rafał Jurczakowski Ph.D.
rafjur@chem.uw.edu.pl
CNBCh UW, room 1.14

Agnieszka Tymosiak-Stefańska Ph.D.,
Aneta Januszewska M.Sc.,
Piotr Połczyński M.Sc.,
Maciej Słojewski M.Sc.,
Krzysztof Strzałkowski M.Sc.,
Paulina Mieldzioć,
Cuc Nguyen,
Paweł Kulboka,
Mikołaj Rdzanek.

RESEARCH ACTIVITIES

High sensitivity of our potentiostats enables us to perform electrochemical measurements with microelectrodes e.g. in biological research. We can analyze solid and liquid samples with direct current and alternating current methods, including Impedance Spectroscopy.

In our laboratory we expand research potential of commercially available frequency analyzers through development of EIS method [R. Jurczakowski, P. Połczyński, J. Phys. Chem. C, 118 (2014) 7980–7988] and construction of our own research instruments [international patent application PCT/IB2012/002111].

Research services

  • Direct and alternating current electrochemical measurements
  • Impedance spectroscopy, analysis of impedance spectra
  • Research on charge transport and conductivity
  • Electrical properties of powder and liquid samples. Special measurement system, constructed in our laboratory, allows us to measure highly reactive samples, with simultaneous control of temperature and pressure (up to 5 GPa).