High throughput screening of supported catalysts using FTIR imaging
Abstract
This study focuses on applying high throughput experimentation to study catalysts and reaction kinetics. In order to employ this method successfully new high throughput screening techniques have emerged. Among screening techniques is FTIR imaging. The feasibility of using FTIR imaging to study both adsorbates on supported catalysts and ligands attached to resin beads has been demonstrated. In this study, the technique has been successfully extended to screen gas phase reactants from multiple flow reactors. To accomplish this, detailed design of both flow reactor assembly and a sampling system was completed. After building the system, it was established that the FTIR imaging technique could be applied to both steady state and transient experiments, and the data was successfully used to construct rate equations for CO oxidation, catalyzed by supported metal catalysts. Three different catalysts were studied for the reaction, platinum, rhodium, and ruthenium. For these catalysts, reaction orders and activation energies were established from the steady state experiments and information on the metal dispersion of the catalysts established from the transient experiments.
Degree
Ph.D.
Advisors
Lauterbach, Purdue University.
Subject Area
Chemical engineering
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