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Rojas V, Cáceres G, López S, Henríquez R, Grez P, Schrebler R, Navarrete E, Herrera F, Caballero Á, Gómez-Cámer JL, Aristizábal J, Muñoz E. Rechargeable sodium-ion battery based on a cathode of copper hexacyanoferrate. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-023-05388-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Henríquez R, Mestra-Acosta AS, Grez P, Muñoz E, Sessarego G, Navarrete-Astorga E, Dalchiele EA. High-performance asymmetric supercapacitor based on a CdCO 3/CdO/Co 3O 4 composite supported on Ni foam – part II: a three-electrode electrochemical study †. RSC Adv 2023; 13:10068-10081. [PMID: 37006367 PMCID: PMC10052401 DOI: 10.1039/d3ra00499f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
A binder-free CdCO3/CdO/Co3O4 compound with a micro-cube-like morphology on a nickel foam (NF) made via a facile two-step hydrothermal + annealing procedure has been developed. The morphological, structural and electrochemical behavior of both the single compounds constituting this final product and the final product itself has been studied. The synergistic contribution effect of the single compounds in the final compounded resulting specific capacitance values are presented and discussed. The CdCO3/CdO/Co3O4@NF electrode exhibits excellent supercapacitive performance with a high specific capacitance (CS) of 1.759 × 103 F g−1 at a current density of 1 mA cm−2 and a CS value of 792.3 F g−1 at a current density of 50 mA cm−2 with a very good rate capability. The CdCO3/CdO/Co3O4@NF electrode also demonstrates a high coulombic efficiency of 96% at a current density as high as 50 mA cm−2 and also exhibits a good cycle stability with capacitance retention of ca. 100% after 1000 cycles at a current density of 10 mA cm−2 along with a potential window of 0.4 V. The obtained results suggest that the facilely synthesized CdCO3/CdO/Co3O4 compound has great potential in high-performance electrochemical supercapacitor devices. Schematic illustration of the two-step process involved in the preparation of the different chemical compounds supported on the nickel foam substrates.![]()
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Affiliation(s)
- Rodrigo Henríquez
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de ValparaísoCasilla 4059ValparaísoChile+56 32 2274921
| | - Alifhers S. Mestra-Acosta
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de ValparaísoCasilla 4059ValparaísoChile+56 32 2274921
| | - Paula Grez
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de ValparaísoCasilla 4059ValparaísoChile+56 32 2274921
| | - Eduardo Muñoz
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de ValparaísoCasilla 4059ValparaísoChile+56 32 2274921
| | - Gustavo Sessarego
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de ValparaísoCasilla 4059ValparaísoChile+56 32 2274921
| | - Elena Navarrete-Astorga
- Universidad de Málaga, Departamento de Física Aplicada I, Laboratorio de Materiales y Superficies (Unidad asociada al CSIC)E29071 MálagaSpain
| | - Enrique A. Dalchiele
- Instituto de Física, Facultad de IngenieríaHerrera y Reissig 565, C. C. 3011000 MontevideoUruguay
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Henríquez R, Mestra-Acosta AS, Muñoz E, Grez P, Navarrete-Astorga E, Dalchiele EA. High-performance asymmetric supercapacitor based on CdCO 3/CdO/Co 3O 4 composite supported on Ni foam. RSC Adv 2021; 11:31557-31565. [PMID: 35496886 PMCID: PMC9041682 DOI: 10.1039/d1ra05243h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/04/2021] [Indexed: 02/01/2023] Open
Abstract
A CdCO3/CdO/Co3O4 composite has been prepared on nickel foam through a combined hydrothermal-annealing method. An asymmetric hybrid supercapacitor (SC) device was assembled with this composite as the positive electrode and activated carbon was the negative electrode. The SC exhibited a high specific capacitance of 84 F g−1 @ 1 mA cm−2, a maximum energy density of 26.3 W h kg−1, and a power density of 2290 W kg−1, along with a wide potential window of 1.5 V and long cycle life (92% after 6000 cycles). SCs assembled in series powered various light-emitting diodes and moved an electrical mini-motor. This work presents for the first time a CdCO3/CdO/Co3O4@nickel foam based supercapacitor with high both specific capacitance and energy density, a widespread potential window and a long cycle life.![]()
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Affiliation(s)
- Rodrigo Henríquez
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso Casilla 4059 Valparaíso Chile +56 32 2274921
| | - Alifhers S Mestra-Acosta
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso Casilla 4059 Valparaíso Chile +56 32 2274921
| | - Eduardo Muñoz
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso Casilla 4059 Valparaíso Chile +56 32 2274921
| | - Paula Grez
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso Casilla 4059 Valparaíso Chile +56 32 2274921
| | - Elena Navarrete-Astorga
- Universidad de Málaga, Departamento de Física Aplicada I, Laboratorio de Materiales y Superficies (Unidad asociada al CSIC) E29071 Málaga Spain
| | - Enrique A Dalchiele
- Instituto de Física, Facultad de Ingeniería Herrera y Reissig 565, C. C. 30 11000 Montevideo Uruguay
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Cáceres G, Rojas V, López S, Henríquez R, Grez P, Schrebler R, Herrera F, Pereyra CJ, Marotti RE, Navarrete E, Muñoz E. Changes in the spectroelectrochemical properties of copper(II) hexacyanoferrate(III) during electrochemical insertion of alkaline ions. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-04960-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ottone C, Pugliese D, Laurenti M, Hernández S, Cauda V, Grez P, Wilson L. ZnO Materials as Effective Anodes for the Photoelectrochemical Regeneration of Enzymatically Active NAD . ACS Appl Mater Interfaces 2021; 13:10719-10727. [PMID: 33645209 DOI: 10.1021/acsami.0c20630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This work reports the study of ZnO-based anodes for the photoelectrochemical regeneration of the oxidized form of nicotinamide adenine dinucleotide (NAD+). The latter is the most important coenzyme for dehydrogenases. However, the high costs of NAD+ limit the use of such enzymes at the industrial level. The influence of the ZnO morphologies (flower-like, porous film, and nanowires), showing different surface area and crystallinity, was studied. The detection of diluted solutions (0.1 mM) of the reduced form of the coenzyme (NADH) was accomplished by the flower-like and the porous films, whereas concentrations greater than 20 mM were needed for the detection of NADH with nanowire-shaped ZnO-based electrodes. The photocatalytic activity of ZnO was reduced at increasing concentrations of NAD+ because part of the ultraviolet irradiation was absorbed by the coenzyme, reducing the photons available for the ZnO material. The higher electrochemical surface area of the flower-like film makes it suitable for the regeneration reaction. The illumination of the electrodes led to a significant increase on the NAD+ regeneration with respect to both the electrochemical oxidation in dark and the only photochemical reaction. The tests with formate dehydrogenase demonstrated that 94% of the regenerated NAD+ was enzymatically active.
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Affiliation(s)
- Carminna Ottone
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, 2340000 Valparaiso, Chile
| | - Diego Pugliese
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Marco Laurenti
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Simelys Hernández
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Valentina Cauda
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Paula Grez
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Av. Universidad 330, Curauma, 2340000 Valparaiso, Chile
| | - Lorena Wilson
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, 2340000 Valparaiso, Chile
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Rojas V, Navarrete E, Román J, Ballesteros L, Cáceres G, Díaz R, Schrebler R, Córdova R, Grez P, Henríquez R, Marotti RE, Dalchiele EA, Herrera F, Muñoz EC. Study about an assembly of iron(III) hexacyanoferrate(II) and α-Fe2O3 as a secondary photocell: Part 1. Synthesis, characterization and photoelectrochemical properties of FTO/α-Fe2O3/KFe[Fe(CN)6]3 electrode system. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Grez P. Sonoelectrochemical Synthesis of Nanostructured of p-Cu2O and n-Fe2O3 and Their Application for Photoelectrochemical Splitting of Water. INT J ELECTROCHEM SC 2019. [DOI: 10.20964/2019.06.03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Heyser C, Schrebler R, Grez P. New route for the synthesis of nickel (II) oxide nanostructures and its application as non-enzymatic glucose sensor. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.10.054] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Riveros G, Garín C, Ramírez D, Dalchiele E, Marotti R, Pereyra C, Spera E, Gómez H, Grez P, Martín F, Ramos-Barrado J. Delafossite CuFeO2 thin films electrochemically grown from a DMSO based solution. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.226] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Martínez A, Spencer ML, Brethauer U, Grez P, Marchesani FJ, Rojas IG. Reduction of syndecan-1 expression during lip carcinogenesis. J Oral Pathol Med 2009; 38:580-3. [DOI: 10.1111/j.1600-0714.2009.00761.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Grez P, Schrebler R, Henríquez R, Cisternas R, Orellana M, Córdova R. Characterization of natural tetrahedrite/aqueous solution system by electrochemical techniques. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2009.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Grez P, Celedón C, Molinari A, Oliva A, Orellana M, Schrebler R, del Río R, Córdova R. New Aspects of the Electroadsorption of Ethyl Xanthate on Copper Electrodes. J Phys Chem B 2005; 109:22920-7. [PMID: 16853986 DOI: 10.1021/jp054477e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The interaction of the ethyl xanthate (EX) anion with a copper electrode in a borate buffer solution, pH 9.2, has been investigated by cyclic voltammetry (CV), electrochemical quartz crystal microbalance (EQCM), electrochemical impedance spectroscopy (EIS), and measurements of contact angle (CA) under controlled potential. The results obtained allow establishing that, in the potential range from -0.80 and -0.60 V, two parallel reactions were characterized. These reactions were the ethyl xanthate electroadsorption and the hydrogen evolution reaction (HER). This last reaction has not been described by previous authors. Besides, the EIS measurements show that the mechanism of the HER on copper electrodes is not affected by the presence of a ethyl xanthate species. The EQCM study shows that in the electrodesorption process the departure of each ethyl xanthate species from the copper electrode is accompanied with the simultaneous entry of four to five water molecules. This fact is in accordance with the number of copper atoms involved in the adsorption of one ethyl xanthate species.
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Affiliation(s)
- Paula Grez
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Brasil 2950, Casilla 4059, Valparaíso, Chile
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Velásquez P, Leinen D, Pascual J, Ramos-Barrado JR, Grez P, Gómez H, Schrebler R, Del Río R, Córdova R. A Chemical, Morphological, and Electrochemical (XPS, SEM/EDX, CV, and EIS) Analysis of Electrochemically Modified Electrode Surfaces of Natural Chalcopyrite (CuFeS2) and Pyrite (FeS2) in Alkaline Solutions. J Phys Chem B 2005; 109:4977-88. [PMID: 16863157 DOI: 10.1021/jp048273u] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electrodic surfaces of natural chalcopyrite and natural pyrite minerals (El Teniente mine, Chile) have been studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy including microanalysis (SEM/EDX). For comparison, fractured and polished mineral surfaces were also studied by XPS. In both electrodes, the formation of Fe(III) species containing oxygen were detected and Cu(II) species containing oxygen were additionally detected for chalcopyrite at advanced oxidation states. The presence of Cu(II) species containing oxygen was not detected by XPS for the initial oxidation states of the chalcopyrite. For pyrite, the present results do not allow confirmation of the presence of polysulfurs such as have been previously proposed. In both minerals, the measurements of SEM and EDX show relevant alterations in the respective surfaces when different potential values were applied. The chalcopyrite surface shows the formation of protrusions with a high concentration of oxygen. The pyrite surface shows a layer of modified material with high oxygen content. The modifications detected by XPS, SEM, and EDX allowed the explanation of the complexity of the equivalent circuit used to simulate the experimental EIS data. At high oxidation states, both minerals showed a pseudoinductive loop in the equivalent circuit, which was due to the active electrodissolution of the minerals which takes place through a surface film previously formed.
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Affiliation(s)
- Pablo Velásquez
- Instituto de Bioingeniería, Departamento de Ciencia y Tecnología de Materiales, Universidad Miguel Hernández, E03202 Elche (Alicante) Spain
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Córdova R, López C, Orellana M, Grez P, Schrebler R, Del Río R. Electrosynthesis of Cu−Se Films on Copper Electrodes in Alkaline Media: A Voltammetric, Electrochemical Quartz Crystal Microbalance and I/t Transient Study. J Phys Chem B 2005; 109:3212-21. [PMID: 16851343 DOI: 10.1021/jp047485o] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electroformation of Cu-Se phases, obtained by selenizing a thin film of copper deposited on the quartz/gold electrode system, was studied with an electrochemical quartz crystal microbalance (EQCM) and by cyclic voltammetry (CV) in an alkaline solution (0.05 M Na(2)B(4)O(7)) containing selenide ion. Potentiodynamic parameters showed that the formation of the initial Cu-Se phases (Cu(2-x)Se/Cu(3)Se(2)) is ruled by an irreversible diffusion controlled mechanism, where a first electron transfer is the rate-determining step. A CV study was also performed with a bulk copper electrode in 1 M NaOH solution containing selenide ion. The deconvolution of the anodic and cathodic I/E profiles corresponding to the electroformation and electroreduction of the Cu-Se film formed allowed us to establish that, depending on the anodic potential limit of the potentiodynamic scan, the Cu-Se phases formed were either a mixture of Cu(2)(-x)Se/Cu(3)Se(2) or Cu(2-x)Se/Cu(3)Se(2)/CuSe. An EQCM study showed that, during the initial stage of Cu-Se phase electroformation, water molecules were released from the electrode. In advanced stages of the process, when the electrode was completely covered by Cu-Se compounds, selenide anions were adsorbed on the formed phase. When the anodic potential limit was extended to -0.2 V, copper oxide compounds were formed. The analysis of the cathodic charge related to Cu-Se phase electroreduction and Energy Dispersive X-ray Spectroscopy (EDXS) analysis confirmed that when the anodic limit was -0.8 V, a mixture of different Cu-Se phases was formed. A I/t transient study performed with a bulk copper electrode in alkaline solution containing selenide established that the nucleation and growth mechanism (NGM) of the Cu-Se phases takes place through an initial bidimensional-instantaneous nucleation (IN2D), followed by four bidimensional-progressive nucleations (PN2D). These results and atomic force microscopy (AFM) experiences supported that the growth of the Cu-Se films occurs through a layer-by-layer mechanism.
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Affiliation(s)
- Ricardo Córdova
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile.
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Córdova R, Oliva A, Angulo J, Grez P, Gómez H, Schrebler R, Molinari A. Electrochemical study of some three-derivative compounds of 1-phenyl-4-butyldithiocarboxylate-5-hydroxypyrazol (3D-FBDTCHP). J Electroanal Chem (Lausanne) 2000. [DOI: 10.1016/s0022-0728(00)00264-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Schrebler R, Grez P, Cury P, Veas C, Merino M, Gómez H, Córdova R, del Valle M. Nucleation and growth mechanisms of poly(thiophene) Part 1. Effect of electrolyte and monomer concentration in dichloromethane. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)00109-5] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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