The development and optimization
of catalysts and catalytic processes
requires knowledge of reaction kinetics and mechanisms. In traditional
catalyst kinetic characterization, the gas composition is known at
the inlet, and the exit flow is measured to determine changes in concentration.
As such, the progression of the chemistry within the catalyst is not
known. Technological advances in electromagnetic and physical probes
have made visualizing the evolution of the chemistry within catalyst
samples a reality, as part of a methodology commonly known as spatial
resolution. Herein, we discuss and evaluate the development of spatially
resolved techniques, including the evolutions and achievements of
this growing area of catalytic research. The impact of such techniques
is discussed in terms of the invasiveness of physical probes on catalytic
systems, as well as how experimentally obtained spatial profiles can
be used in conjunction with kinetic modeling. Furthermore, some aims
and aspirations for further evolution of spatially resolved techniques
are considered.
Metal Organic Frameworks (MOFs) offer unparalleled physical and sorption properties due to their chemical tunability and unmatched porosity. MOFs are consequently envisaged to play a key role in commercial gas...
Pd/Al2O3 catalysts are known to be active for low temperature methane oxidation reactions, however it has been shown that gases normally associated with methane gas streams (H2O, CO2, H2S) can have an inhibitory effect on the total oxidation reaction.
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