Browsing by Author "Honores Sotelo, Jessica Scarlet"
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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
- ItemDetermination of S(IV) Oxoanions at Poly[Ru(5-NO2-Phen)(2)Cl] Tetrapyridylporphyrin Glassy Carbon Modified Electrode(2012) Dreyse, Paulina A.; Quezada Sandoval, Diego Alonso; Honores Sotelo, Jessica Scarlet; Aguirre, Maria Jesus; Mendoza, Leonora; Matsuhiro, Betty; Villagra, Diego; Isaacs Casanova, Mauricio
- ItemElectrocatalytic reduction of carbon dioxide on a cobalt tetrakis(4-aminophenyl)porphyrin modified electrode in BMImBF4(2014) Quezada, D.; Honores Sotelo, Jessica Scarlet; García, M.; Armijo Mancilla, Juan Francisco; Isaacs Casanova, Mauricio
- 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
- ItemElectrocatalytic Transformation of Carbon Dioxide into Low Carbon Compounds on Conducting Polymers Derived from Multimetallic Porphyrins(2015) Dreyse, Paulina A.; Honores Sotelo, Jessica Scarlet; Quezada, Diego; Isaacs Casanova, Mauricio
- ItemElectrochemical Conversion of Carbon Dioxide into CHO-Containing Compounds on Multimetallic Porphyrins(2017) Calfuman, K.; Honores Sotelo, Jessica Scarlet; Guzmán Ángel, Daniela; Ohlbaum, M.; Armijo Mancilla, Juan Francisco; del Rio, Rodrigo; Isaacs Casanova, Mauricio
- 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
- ItemImidazolium-based ionic liquids as stabilizers for electrode modification with water-soluble porphyrin(2019) Garcia, M.; Honores Sotelo, Jessica Scarlet; Celis, F.; Fuenzalida, F.; Arce, R.; Aguirre, M.J.; Aracena, A.
- ItemImproved ammonia production using Cu2O@poly-carbazole electrocatalysts in the electrochemical reduction of molecular nitrogen and nitrogen oxoanions(2024) Herrán Maldonado, Luis Alberto; Véliz-Silva, Diego F.; Poblete Baeza, Colin; Leiva Farias, Elías Guillermo; Honores Sotelo, Jessica Scarlet; Landaeta Campos, Esteban Alonso; Sancy Velásquez, Mamie Odette; Del Río Quero, Rodrigo Rafael; Sáez Navarrete, César Antonio; Dalchiele, Enrique; Isaacs Casanova, Mauricio AlejandroIn the present study, a Cu2O@PCz electrode for the nitrogen reduction reaction is proposed; this electrode takes advantage of the catalytic properties of Cu2O in conjunction with conducting polymers such as polycarbazole (PCz). This combination demonstrates an improvement in the catalytic activity and higher stability of this metal oxide in nitrogen electro-reduction reaction (NRR) and nitrogen oxoanion electro-reduction reaction (NORR) processes under aqueous conditions. On this basis, the material synthesized on FTO (SnO2 : F), Cu2O@PCz, exhibits a faradaic efficiency of around 38.83%, together with an NH3 productivity of 1.83 μg h−1 cm−2 in NRR type processes, on applying a potential of −0.8 V (V vs. Ag/AgCl). Similarly, in NORR type processes, the material exhibits NH3 and N2H4 productivity. The latter is the most relevant in terms of the yields obtained. Specifically, using nitrite (NO2−), an efficiency of around 77.72% was obtained, together with a formation rate of 37.02 μg h−1 cm−2 at a potential of −0.8 V (V vs. Ag/AgCl). Although N2H4 is a by-product of ammonia formation, this molecule can be considered an intermediate, which broadens the scope of this study for future research into the production of green chemicals. Finally, this research presents promising new routes for the production of NH3 at room temperature, highlighting the potential of low-cost materials, easy synthesis, and enhanced stability.
- ItemImproved photoelectrocatalytic effect of Co(ii) and Fe(iii) mixed porphyrins on graphite paste electrodes towards hydrogen evolution reaction(2019) Gidi Chomalí, Leyla Denisse; Honores Sotelo, Jessica Scarlet; Ibarra, J.; Arce, R.; Aguirre, M.J.; Ramirez, G.
- ItemIntegrated experimental and theoretical insights into CO2 fixation: tetraazamacrocyclic catalysts in ionic liquids for cyclic carbonate formation(Royal Society of Chemistry, 2025) Honores Sotelo, Jessica Scarlet; Quezada, Diego; Camarada, María B.; Ramírez Jofré, Galo; Isaacs Casanova, MauricioThe electrochemical cycloaddition of carbon dioxide to epoxides was investigated using tetraazamacrocyclic metal complexes as electrocatalysts in ionic liquids under mild conditions. The process was carried out in the absence of additional organic solvents, employing Ni(cyclam)Cl2 and Co(cyclam)Cl2Cl as catalysts, which facilitated the activation of CO2. The electrosynthesis was conducted in 1-butyl-3-methylimidazolium-based ionic liquids, which not only acted as solvents but also played a crucial role in promoting epoxide ring opening and stabilizing reaction intermediates. Electrochemical experiments using propylene oxide, styrene oxide, and epichlorohydrin demonstrated that the nature of the epoxide substituent significantly impacts the formation of cyclic carbonates. The highest yields were obtained when BMImBr was used as the reaction medium, while other ionic liquids such as BMImBF4 and BMImTFSI resulted in negligible conversion. Spectroelectrochemical studies provided additional insights into the reaction mechanism, confirming the role of halide anions in facilitating carbonate formation. Furthermore, density functional theory (DFT) calculations were performed to explore the interaction between Ni(cyclam) complexes and CO2. Theoretical results indicate that the trans-I isomer of [Ni(cyclam)]+ favors CO2 coordination and activation, which aligns with the experimental findings. Computational analysis also supported the importance of ionic liquid composition in stabilizing key reaction intermediates. This study highlights the potential of electrocatalytic methodologies for the sustainable conversion of CO2 into high-value chemicals, contributing to the development of greener and more efficient synthetic strategies.
- ItemNitrite reduction on a multimetallic porphyrin/polyoxotungstate layer-by-layer modified electrodes(2016) García, Macarena; Honores Sotelo, Jessica Scarlet; Quezada Sandoval, Diego Alonso; Díaz Navarro, Carlos Patricio; Dreyse, Paulina A.; Celis, Freddy; Canzi, Gabriele; Guzman, Fernando; Isaacs Casanova, Mauricio; Kubiak, Clifford P.; Aguirre, Maria J.
- ItemOn the mechanism of CO2 electro-cycloaddition to propylene oxides(2016) Gallardo, S.; Contreras R.; Isaacs Casanova, Mauricio; Honores Sotelo, Jessica Scarlet; Quezada Sandoval, Diego Alonso; Landaeta Campos, Esteban Alonso; Ormazabal, R.
- ItemUN sustainable development goals : how can sustainable/green chemistry contribute?(2018) Pavez Guerrero, Paulina Isabel; Honores Sotelo, Jessica Scarlet; Millán Retamal, Daniela Andrea; Isaacs Casanova, Mauricio
- ItemSynthesis of cyclic carbonates from CO2 and epoxide catalyzed by Co, Ni and Cu complexes in ionic liquids(2019) Honores Sotelo, Jessica Scarlet; Quezada, Diego; Chacón, Gustavo; Martínez‑Ferraté, Oriol; Isaacs Casanova, Mauricio Alejandro