Multiscale and Innovative Kinetic Approaches in Heterogeneous Catalysis

Breakthroughs in Hard X‐ray Diffraction: Towards a Multiscale Science Approach in Heterogeneous Catalysis†

The scientific community has recently celebrated the centennial of X-ray diffraction. Ever since the first diffraction pattern was recorded by Max von Laue, X-ray diffraction (XRD) has been developed into a widely used, powerful, and indispensable characterization method for structural analysis. A real revolution in using X-rays for diffraction analysis happened with the advent of synchrotron r...

Reactor for in situ measurements of spatially resolved kinetic data in heterogeneous catalysis.

The present work describes a reactor that allows in situ measurements of spatially resolved kinetic data in heterogeneous catalysis. The reactor design allows measurements up to temperatures of 1300 degrees C and 45 bar pressure, i.e., conditions of industrial relevance. The reactor involves reactants flowing through a solid catalyst bed containing a sampling capillary with a side sampling orif...

Model studies in heterogeneous catalysis.

I review a concept that models heterogeneous catalysis based on a surface-science approach. It is shown that models catching part of the complexity of the real system, which is connected with the finite size of active components and the flexibility of the arrangement of atoms in the active component, play an important part in determining the activity and selectivity of the system. I have chosen...

Heterogeneous Catalysis and Solid Catalysts

Heterogeneous asymmetric catalysis*

Examples of enantioselective catalysts, including homogeneous supported catalysts and biphasic liquid/liquid, are described and compared. In the case of asymmetric hydride transfer, polythiourea was proven to be more efficient for ruthenium-catalyzed reduction of aryl ketones, although the iridium complexes gave rise to higher ee when using amino sulfonamide bound to a polystyrene matrix. In th...