An Advanced Experiment for Studying Electron Transfer and Charge Storage on Surfaces Modified with Metallic Complexes

• Autores: Diego González-Flores, Mavis L. Montero
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 90, Nº 8, 2013, págs. 1077-1081
• Idioma: inglés
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• Resumen

  • : Data-storage devices can be fabricated by modifying di?erent surfaces with metallic complexes. The required time to write information and the time that information remains is crucial for the performance of the electronic device. We illustrate this technological application of molecules by adsorbing a polyoxometalate on graphite and characterization by ac voltammetry and open circuit potential amperometry. A charge-transfer constant from the surface to the electrode of 118 s-1 and a charge-storage half-life of 42 s were calculated by these methodologies. This laboratory can be easily performed and adapted in any advanced electrochemistry or materials science laboratory.