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Contact

Prof. Dr. Gunther Wittstock
Group leader

Group members

+49 (0) 441 798 3970

+49 (0) 441 798 3979

Postal address

Universität Oldenburg
Fakultät 5 / Physikalische Chemie
AG Wittstock
D-26111 Oldenburg
Germany

Visitors

University of Oldenburg
Campus Wechloy
Carl-von-Ossietzky-Straße 9-11
Building W3, 1st floor
D-26129 Oldenburg
Germany

Topics

The Wittstock groups investigates local reactions at solid-liquid interfaces, in particular electrochemical reactions. Such reactions play an important role in several areas of application for which we search for a basic understanding.

  • Electrochemistry of oxygen in energy conversion systems (fuel cells and metal air batteries)
  • Reactions at biomaterial surfaces
  • Biomimetic surfaces and their pattering
  • Assembly of molecules and nanoparticles at interfaces
  • Photoelectrochemical energy conversion
  • Electrochemical reactions of organic and metallorganic compounds at interfaces

 

The rate of those reactions, i.e. the conversion rate of compounds at interfaces, can be influenced in various ways: mass transport in the liquid phase, bound catalysts at electrode surfaces, formation of ultrathin selective coatings and the use of unconventional reaction media. 
We use classical voltammetric methods, scanning probe techniques (scanning force microscopy (AFM or SFM), scanning electrochemical microscopy (SECM), combinations of electrochemical and spectroscopic techniques (XPS and IR-spectroelectrochemistry) and laser spectroscopy and microscopy

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