Chem 278 Prof. Matthew Conley

Seminar series
Inorganic Chemistry
Wed, Dec 4 4:30pm
3440 Mol Sci
Speaker Matthew Conley
UC Riverside
Department of Chemistry

Abstract: Nearly all large-scale catalytic reactions in chemical industry use a heterogeneous catalyst. These critically important materials usually contain a high surface area inert support (SiO2, Al2O3, etc.), and a catalytically active site dispersed on the support. The structure of an active site in a heterogeneous catalysts can be extremely difficult to determine using spectroscopic techniques because available synthetic methods produce complex mixtures of active and dormant sites on a support surface. This limitation results in empirical optimization strategies, and also, and reactions that are less energy efficient than those catalyzed by related homogeneous catalysts. This seminar will describe our efforts to generate well-defined active site structures on oxide surfaces. Well-defined active sites for the polymerization of olefins, and generation of very strong Lewis/Bronsted acid sites on surfaces will be discussed, with a particular emphasis on spectroscopic characterization of reactive intermediates.