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RESEARCH PRODUCT
Vanadium‐Doped Zircon and Zirconia Materials Prepared from Gel Precursors as Site‐Selective Electrochemical Sensors
Javier AlarcónAntonio Doménechsubject
General Chemical EngineeringInorganic chemistrySubstrate (chemistry)Vanadiumchemistry.chemical_elementElectrocatalystElectrochemistryCatalysischemistry.chemical_compoundchemistryCubic zirconiaCarboxylateInstrumentationGeneral Environmental ScienceSol-geldescription
Abstract Polymer film electrodes incorporating vanadium‐doped zircon (V x ZrSiO4, 0.00 < x < 0.10) and vanadium‐doped monoclinic and tetragonal zirconias (V x ZrO2, 0.00 < x < 0.15), prepared by heat treatment of gel precursors, exhibit a significant site‐selective electrocatalytic activity towards the oxidation of amino acids, polyalcohols, and polyhydroxycarboxylic acids in alkaline media. Catalysis of the oxidation of carboxylate and alcohol groups involves a relatively slow chemical reaction between the substrate and vanadium centers, while the oxidation of thiolate in cysteine can be attributed to the oxidation of an adduct formed by vanadium centers and the substrate.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-05 | Instrumentation Science & Technology |