Browsing by Author "Aguirre, M. J."
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- ItemCarbon neutral electrochemical conversion of carbon dioxide mediated by [Mn+(cyclam)Cl-n] (M = Ni2+ and Co3+) on mercury free electrodes and ionic liquids as reaction media(2017) Honores Sotelo, Jessica Scarlet; Quezada Sandoval, Diego Alonso; García, M.; Calfuman, K.; Muena, J. P.; Aguirre, M. J.; Arévalo, M. C.; Isaacs Casanova, Mauricio; Honores Sotelo, Jessica Scarlet; Quezada Sandoval, Diego Alonso; García, M.; Calfuman, K.; Muena, J. P.; Aguirre, M. J.; Arévalo, M. C.; Isaacs Casanova, Mauricio
- ItemCritical Comparison between Modified Monier-Williams and Electrochemical Methods to Determine Sulfite in Aqueous Solutions(2012) Montes, C.; Vélez Cifuentes, Jorge; Ramírez Jofré, Galo; Isaacs Casanova, Mauricio; Arce, R.; Aguirre, M. J.
- ItemElectro-reduction of Oxygen to Water Mediated by Stable Glassy Carbon Electrodes Modified by Co(II)-porphyrins with Voluminous Meso-Substituent(2015) Marin, A.; Aguirre, M. J.; Muena, J. P.; Dehaen, W.; Maes, W.; Ngo, Thien H.; Ramírez Jofré, Galo; Arevalo, M. C.
- ItemElectrocatalytic reduction of carbon dioxide on conducting glass electrode modified with polymeric porphyrin films containing transition metals in ionic liquid medium(2014) Quezada, D.; Honores Sotelo, Jessica Scarlet; Aguirre, M. J.; Isaacs Casanova, Mauricio
- ItemELECTROOXIDATION OF SULFITE AT CARBON PASTE ELECTRODE MODIFIED WITH IONIC LIQUIDS DERIVATED OF N-OCTYL-PYRIDINIUM HEXAFLUOROPHOSPHATE WITH DIFFERENT SUBSTITUENTS IN THE CATION(2017) Fuenzalida, F.; García, C.; García, M.; Arce, R.; Baez, C.; Aguirre, M. J.; Isaacs Casanova, Mauricio; Arévalo, M. D.
- ItemEnhanced Electrocatalysis of the Oxygen Reduction Reaction Using Cobalt and Iron Porphyrin/Ionic Liquid Systems(2019) Gidi Chomalí, Leyla Denisse; Honores Sotelo, Jessica Scarlet; Arce, Roxana; Arévalo, M. C.; Aguirre, M. J.; Ramírez Jofré, Galo
- ItemIron porphyrin-modified electrodes: influence of the method of modification on the stability and electroactivity in oxidation of sulfite or hydrogensulfite in ethanol-water solutions(2009) Ramirez Ortiz, Gisela; Goya, M.C.; Mendoza, L.; Matsuhiro, B.; Isaacs Casanova, Mauricio; Chen Carrillo, Yo-Ying Adriana; Arevalo, M.C.; Henriquez, J.; Cheuquepan, W.; Aguirre, M. J.
- ItemStudy of the Hydrogen Evolution Reaction Using Ionic Liquid/Cobalt Porphyrin Systems as Electro and Photoelectrocatalysts(MDPI, 2020) Gidi, Leyla; Honores, Jessica; Ibarra, Jose; Arce, Roxana; Aguirre, M. J.; Ramirez, GaloIn this work, the design and manufacture of graphite paste (Gr) electrodes is carried out, including N-octylpyridinium hexafluorophosphate (OPyPF6) ionic liquid (IL) as binder and modification with Co-octaethylporphyrin (Co), in order to study the hydrogen evolution reaction (HER) in the absence and presence of light. The system is characterized by XRD and FESEM-EDX (Field Emission Scanning Electron Microscopy with Energy Dispersive X-Ray Spectroscopy), confirming the presence of all the components of the system in the electrode surface. The studies carried out in this investigation confirm that a photoelectrocatalytic system towards HER is obtained. The system is stable, efficient and easy to prepare. Through cyclic voltammetry and electrochemical impedance spectroscopy, was determined that these electrodes improve their electrochemical and electrical properties upon the addition of OPyPF6. These effects improve even more when the systems are modified with Co porphyrin. It is also observed that when the systems are irradiated at 395 nm, the redox process is favored in energy terms, as well as in its electrical properties. Through gas chromatography, it was determined that the graphite paste electrode in the presence of ionic liquid and porphyrin (Gr/IL/Co) presents a high turnover number (TON) value (6342 and 6827 in presence of light) in comparison to similar systems reported.
- ItemSurface Effect on Fe (III)Poly-(Tetraaminophenyl) Porphyrin Modified Electrodes After Electrocatalytic Reactions. An Electrochemical and Atomic Force Microscopy Study(2011) Goya, M. C.; Lucero, M.; González Orive, A.; Marin, A.; Gimeno, Y.; Hernández Creus, A.; Aguirre, M. J.; Arévalo, M. C.; Armijo Mancilla, Juan Francisco