PD Dr. Evgenii Kondratenko
The main aim of our group is to elaborate strategies enabling us to couple microscopic mechanistic (micro-kinetic) and physicochemical knowledge of complex heterogeneous reactions with macroscopic observations in chemical reactors. This relationship is essential for developing new effective catalytic materials or for improving the existing ones, as well as for the optimization of reactor operation. Our approach consists of combining micro-kinetic transient analysis and overall steady-state kinetics with the detailed characterization of catalytic materials under working conditions.
Our main activities, described in the relevant subsections, are:
- Transient mechanistic studies with isotopic traces
- Micro-kinetic analysis aimed at predicting catalytic performance under transient and steady-state conditions for a broad range of reaction parameters
- Transient and steady-state reactor operation
- Electronic properties in heterogeneous catalysis
The above approach is universally applicable for the following reasons.
- High-time resolution transient kinetic analysis using the TAP reactor
- makes it possible to identify primary reaction steps and to clarify of their kinetics. This is crucial in order to more clearly identify selective and non-selective reaction pathways of the chemical process studied.
- By combining the characterization of catalytic materials under working conditions with transient kinetic analysis (steady-state isotopic transient kinetic analysis) the state of the catalytic material is studied directly inside the reactor, therefore, detailed chemical and structural information can be deduced for such a system under real catalytic conditions.
- The information derived from transient in-situ characterization and micro-kinetic studies, in combination with steady-state kinetics, opens up the possibility of establishing relationships between physicochemical properties of solid materials and selective and non-selective reaction pathways.