|About this Abstract
||Materials Science & Technology 2019
||Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
||Microwave Effects in Heterogenous Materials: A Study on Catalysis
||Christina Wildfire, Dushyant Shekhawat, Victor AbdelSayed, Terence Musho
|On-Site Speaker (Planned)
The use of microwaves in catalysis has shown promising results in increased yields, product selectivity, and energy efficiency but little is known of the mechanisms behind the results. It is thought that hot spot formation is a main cause but previous studies by this group has shown formation of electric fields within these materials that may be assisting in the reactions. This study investigates a group of catalysts, metal active sites on a transparent support, under a microwave field where the active sites are varied by size, distribution, and precursor. The catalysts are also tested in a variable frequency microwave reactor and their performance compared to the dielectric properties. Testing has shown better efficiency, less sintering, and quicker response times with higher metals loading. Modeling was performed to explain some non-thermal effects seen in the heterogeneous catalyst materials.
||Planned: At-meeting proceedings