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Updated: Oct 18, 2025

Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications
Published on: July 28, 2021
Electrochemical behaviour of uranium at a tripolyphosphate modified ITO electrode
Xiangyang Hou1, Jeffrey R McLachlan1, Christopher J Dares1
1Florida International University, Department of Chemistry and Biochemistry, 11200 SW 8th St., Miami, FL 33199, USA. cdares@fiu.edu.
Abstract:
UO22+ binds to the surface of a tripolyphosphate modified mesoporous indium tin-doped oxide electrode (nanoITO|P3). Electrochemical studies reveal that nITO|P3 electrodes catalyze the 2-electron interconversion between UO22+ and U4+ with the P3-ligand assisting in the rate-limiting proton-coupled reduction of U(V) to U(IV), based on the kinetic isotope effect (1.8). Product composition between nITO|P3(U4+) and surface adsorbed UO2 can be controlled by adjusting the proton concentration and/or scan rate in voltammograms. These studies with uranium suggest that nITO|P3 electrodes are good candidates for redox transformations with other actinides including neptunium, plutonium, and americium.
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