Oxidative
Catalysis
Oxidation
is important for energy production, chemical synthesis and environmental
protection and restoration. A catalyst
accelerates a chemical reaction (here oxidation), but remains unaltered at the
end of the process. In general we can
distinguish between homogeneous and heterogeneous catalysis. In homogeneous catalysis a catalytic molecule
is in solution with the substrate to be oxidized. Enzymes are homogeneous catalysts. Most organometallic
catalysis is homogeneous. Metal surfaces
can catalyze reactions in solution or gas phase. This is known as heterogeneous catalysis
since the phase of catalyst (solid) is different from the substrate (liquid or
vapor). The catalytic converter in a car
is an example of a heterogeneous catalyst.
It acts on partially combusted vapor to more fully oxidize. This prevents harmful reactive pollutants
from emerging from the tailpipe.
We
can use quantum chemical calculations to calculate catalytic reaction
mechanisms. Examples include peroxidase enzymes, which consist of iron active sites in a
protein or palladium surfaces, which can be a model for a catalytic
converter. In order to conduct research
in this area you will want to familiarize yourself with the basics of the code
used.
You
will also want to learn about the basics of the research of the collaborative
team involved in the Zhejiang University NCSU collaboration.
1.
Peroxidase enzymes
2.
Metalloporphyrins in solution
3.
Metal oxide nanoparticles
4.
Metal surfaces