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Research Interests - Dr. Kenneth L. Brown

Electrochemical Preparation and Characterization of Chemically Modified Electrodes

This research program is directed towards the development of chemically modified electrodes by cyclic voltammetry involving oxidative electropolymerization reactions of derivatized ruthenuium bypridyl complexes such as [(bpy)2Ru(5-phenNH2)]2+ (5-phenNH2 = 5- amino-1,10-phenanthroline). Electropolymerization reactions form multilayered polymeric films on electrode surfaces. Other ruthenium complexes based on reductive electropolymerization processes are also being investigated. The ruthenium-based films utilized in this research are being applied to develop chemical sensors for hydrazine in static and flow injection analysis systems.

Another major aspect of the research program is devoted to understanding the mechanisms of charge transfer within the polymeric films by various surface characterization techniques. This would involve calculations of apparent diffusion coefficients and reduction potentials using electrochemical techniques, and thin film thickness using ion beam techniques. The students involved in this research will gain a fundamental understanding in a variety of electrochemical and hyphenated techniques in cyclic voltammetry, chronocoulometry, and spectroelectrochemistry.