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| Catalysis
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The studies
of heterogeneous and homogeneous
catalysis constitute one
of the important research
areas in PEER center. The
ongoing projects include
catalytic decarboxylation
of carboxylic acid and C-H
activation to convert methane
to the materials with higher
additional values. The advantageous
of PEER group is that we
gather experimental and
theoretical experts with
diverse background in heterogeneous
catalysis, homogeneous catalysis,
theoretical chemistry, surface
chemistry and material science.
In particular our research
focuses on
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- Developing low temperature,
high selective decarboxylation
catalyst and investigating
the possible reaction pathways
through detailed product analysis,
catalyst structure characterization
and theoretical modeling prediction.
- Exploring possible application
of ionic liquid as a new reaction
media in C-H activation, alkylation
of aromatics and gas separation.
Meanwhile designing and synthesizing
new ionic liquids to meet
the demands for a variety
of reactions.
- Applying novel molecular
design concept and quantum
chemistry theories to assist
our catalyst design and understanding
the chemistry and physical
phenomena occurring in the
targeted reactions. |
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| Homogeneous
Catalysis |
| Homogeneous catalysis
or molecular catalysis in
solution has the advantages
of more uniform accessibility,
and hence more selectivity
than heterogeneous catalysis.
Current homogeneous catalysis
is based on solution organometallic
chemistry developed in last
several decades. Major research
directions for PEER in this
area are: |
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-To overcome the separation/recycle
problems a new trend has
emerged in last several
years. That can be called
as surface homogeneous catalysis
or surface organometallic
chemistry in which uniform
catalytic sites on surfaces
retain the advantages of
those in solution, with
the added benefits of ease
of separation from products,
lack of corrosion, and robustness
for high-temperature operation.
- Experimental transition-metal
coordination chemistry and
quantum valence theory and
force-field theory are approaching
mature and programmable
which leads to tunable and
designable catalyst systems.
In addition of transition-metals
others such as organo-main
groups, organo-rare earth
chemistry and catalysis
have been advanced significantly
recently. It has greatly
expanded the scope of homogeneous
catalysis.
- Another trend is where
catalysts are immobilized
on ionic liquids in solution
state. PEER's research in
this field is mainly focused
on catalysis of C-H activation
and C-C bond coupling. Research
started reasonable designing
coordinatively unsaturated
metal centers or precursors
and potential ligands following
inert atmosphere synthesis.
Reaction mechanisms are
studied by isotopic labeling,
characterization of intermediates,
dynamic NMR, IR or UV-Vis
monitoring of reaction kinetics
and stereochemistry.
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