1
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Jia M, Hu P, Hu G. An easy-to-assemble probe for in situ corrosion testing of archaeological metal. Electrochem commun 2023. [DOI: 10.1016/j.elecom.2023.107427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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2
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Erinmwingbovo C, Siller V, Nuñez M, Trócoli R, Brogioli D, Tarancón A, Morata A, La Mantia F. Effect of Film Thickness on the Kinetics of Lithium Insertion in Films Made by Multilayer Pulsed Laser Deposition for Thin‐Film All‐Solid‐State Battery Cathode Materials**. ChemElectroChem 2023. [DOI: 10.1002/celc.202200759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Collins Erinmwingbovo
- Universität Bremen Energiespeicher- und Energiewandlersysteme Bibliothekstr. 1 28359 Bremen Germany
| | - Valerie Siller
- IREC Jardins de les Dones de Negre 1, 2a 08930 Sant Adriá de Besós Barcelona Spain
| | - Marc Nuñez
- IREC Jardins de les Dones de Negre 1, 2a 08930 Sant Adriá de Besós Barcelona Spain
| | - Rafael Trócoli
- Institut de Ciéncia de Materials de Barcelona (ICMAB-CSIC) Campus UAB Bellaterra Catalonia E-08193 Spain
| | - Doriano Brogioli
- Universität Bremen Energiespeicher- und Energiewandlersysteme Bibliothekstr. 1 28359 Bremen Germany
| | - Albert Tarancón
- IREC Jardins de les Dones de Negre 1, 2a 08930 Sant Adriá de Besós Barcelona Spain
- ICREA Passeig de Lluís Companys 23 08010 Barcelona Spain
| | - Alejandro Morata
- IREC Jardins de les Dones de Negre 1, 2a 08930 Sant Adriá de Besós Barcelona Spain
| | - Fabio La Mantia
- Universität Bremen Energiespeicher- und Energiewandlersysteme Bibliothekstr. 1 28359 Bremen Germany
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3
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Pianta N, Scarpioni F, Chukwu R, La Mantia F, Ruffo R. Evaluation of kinetic parameters of non-faradic processes in carbon-based electrodes using multisine dynamic electrochemical impedance spectroscopy. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2022.141462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Deller AE, Soares AL, Volpe J, Ruthes JGA, Souto DEP, Vidotti M. Development of Folate-Group Impedimetric Biosensor Based on Polypyrrole Nanotubes Decorated with Gold Nanoparticles. BIOSENSORS 2022; 12:970. [PMID: 36354479 PMCID: PMC9688042 DOI: 10.3390/bios12110970] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
In this study, polypyrrole nanotubes (PPy-NT) and gold nanoparticles (AuNPs) were electrochemically synthesized to form a hybrid material and used as an electroactive layer for the attachment of proteins for the construction of a high-performance biosensor. Besides the enhancement of intrinsic conductivity of the PPy-NT, the AuNPs act as an anchor group for the formation of self-assembly monolayers (SAMs) from the gold-sulfur covalent interaction between gold and Mercaptopropionic acid (MPA). This material was used to evaluate the viability and performance of the platform developed for biosensing, and three different biological approaches were tested: first, the Avidin-HRP/Biotin couple and characterizations were made by using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), wherein we detected Biotin in a linear range of 100-900 fmol L-1. The studies continued with folate group biomolecules, using the folate receptor α (FR-α) as a bioreceptor. Tests with anti-FR antibody detection were performed, and the results obtained indicate a linear range of detection from 0.001 to 6.70 pmol L-1. The same FR-α receptor was used for Folic Acid detection, and the results showed a limit of detection of 0.030 nmol L-1 and a limit of quantification of 90 pmol L-1. The results indicate that the proposed biosensor is sensitive and capable of operating in a range of clinical interests.
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Affiliation(s)
- Andrei E. Deller
- Grupo de Pesquisa em Macromoléculas e Interfaces, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, PR, Brazil
| | - Ana L. Soares
- Grupo de Pesquisa em Macromoléculas e Interfaces, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, PR, Brazil
| | - Jaqueline Volpe
- Laboratório de Espectrometria, Sensores e Biossensores, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, PR, Brazil
| | - Jean G. A. Ruthes
- Grupo de Pesquisa em Macromoléculas e Interfaces, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, PR, Brazil
| | - Dênio E. P. Souto
- Laboratório de Espectrometria, Sensores e Biossensores, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, PR, Brazil
| | - Marcio Vidotti
- Grupo de Pesquisa em Macromoléculas e Interfaces, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, PR, Brazil
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5
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Chukwu R, Mugisa J, Brogioli D, La Mantia F. Statistical Analysis of the Measurement Noise in Dynamic Impedance Spectra. ChemElectroChem 2022; 9:e202200109. [PMID: 36033833 PMCID: PMC9400911 DOI: 10.1002/celc.202200109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/08/2022] [Indexed: 11/15/2022]
Abstract
Different strategies can be used to acquire dynamic impedance spectra during a cyclic voltammetry experiment. The spectra are then analyzed by fitting them with a model using a weighted non‐linear least‐squares minimization algorithm. The choice of the weighting factors is not trivial and influences the value of the extracted parameters. At variance with the classic electrochemical impedance spectroscopy, dynamic impedance measurements are performed under non‐stationary conditions, making them typically more prone to errors arising from the voltage and current analog‐to‐digital conversion. Under the assumption that the noise in the voltage and current signals have a constant variance along the measurement and that it is uncorrelated between distinct samples, we calculate an expression for the expected variance of the error of the resulting immittances, which considers the specific procedure used to extract the spectra under the time‐varying nature of the measurements. The calculated variance of the error is then used as a rigorous way to evaluate the weighting factors of the least‐squares minimization, assuming that the fitted model is ideally exact and that there are no systematic errors. By exploring two classical electrochemical systems and fitting the measured spectra with a transfer function measurement model, namely with the Padé approximants, we show that the variance evaluated with our method captures the frequency dependence of the resulting residuals and can be used for reliably performing the complex non‐linear least‐squares fitting procedure.
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Affiliation(s)
- Richard Chukwu
- Universität Bremen: Universitat Bremen Produktionstechnik GERMANY
| | - John Mugisa
- Universität Bremen: Universitat Bremen Produktionstechnik GERMANY
| | - Doriano Brogioli
- Universität Bremen: Universitat Bremen Produktionstechnik GERMANY
| | - Fabio La Mantia
- University of Bremen: Universitat Bremen Produktionstechnik Bibliotheksstrasse 1 28359 Bremen GERMANY
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6
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Erinmwingbovo C, La Mantia F. Estimation and correction of instrument artefacts in dynamic impedance spectra. Sci Rep 2021; 11:1362. [PMID: 33446729 PMCID: PMC7809267 DOI: 10.1038/s41598-020-80468-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/22/2020] [Indexed: 11/21/2022] Open
Abstract
Dynamic impedance spectroscopy is one of the most powerful techniques in the qualitative and quantitative mechanistic studies of electrochemical systems, as it allows for time-resolved investigation and dissection of various physicochemical processes occurring at different time scales. However, due to high-frequency artefacts connected to the non-ideal behaviour of the instrumental setup, dynamic impedance spectra can lead to wrong interpretation and/or extraction of wrong kinetic parameters. These artefacts arise from the non-ideal behaviour of the voltage and current amplifier (I/E converters) and stray capacitance. In this paper, a method for the estimation and correction of high-frequency artefacts arising from non-ideal behaviour of instrumental setup will be discussed. Using resistors, \documentclass[12pt]{minimal}
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\begin{document}$$[\hbox {Fe(CN)}_6]^{3-/4-}$$\end{document}[Fe(CN)6]3-/4- redox couple and nickel hexacyanoferrate nanoparticles, the effect of high-frequency artefacts will be investigated and the extraction of the impedance of the system from the measured dynamic impedance is proposed. It is shown that the correction allows acquiring proper dynamic impedance spectra at frequencies higher than the bandwidth of the potentiostat, and simultaneously acquire high precision cyclic voltammetry.
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Affiliation(s)
- Collins Erinmwingbovo
- Energiespeicher- und Energiewandlersysteme, Universität Bremen, Bibliothekstr. 1, 28359, Bremen, Germany
| | - Fabio La Mantia
- Energiespeicher- und Energiewandlersysteme, Universität Bremen, Bibliothekstr. 1, 28359, Bremen, Germany.
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7
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Schneider J, Tichter T, Khadke P, Zeis R, Roth C. Deconvolution of electrochemical impedance data for the monitoring of electrode degradation in VRFB. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135510] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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8
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Investigation of Corrosion Methods for Bipolar Plates for High Temperature Polymer Electrolyte Membrane Fuel Cell Application. ENERGIES 2020. [DOI: 10.3390/en13010235] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, different methods and electrochemical set-ups were investigated in order to study the corrosion behaviour of bipolar plates (BPP) for high temperature (HT) polymer electrolyte membrane fuel cell application. Using confocal and scanning electron microscopy, it was shown that chemical and electrochemical aging significantly increases surface roughness as well as morphology changes, confirming material degradation. Identical electrochemical corrosion behaviour was observed for both set-ups with typical quinone/hydroquinone peaks in the potential range ~0.6–0.7 V versus reversible hydrogen electrode (RHE). The appearance of the peaks and an increase of double layer capacitance can be related to the oxidation of carbon surface and, consequently, material corrosion. Simultaneously, an optimised corrosion set-up was introduced and verified regarding suitability. Both investigated set-ups and methods are useful to analyse the oxidation behaviour and corrosion resistance.
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Erinmwingbovo C, Siller V, Nuñez M, Trócoli R, Brogioli D, Morata A, La Mantia F. Dynamic impedance spectroscopy of LiMn2O4 thin films made by multi-layer pulsed laser deposition. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135385] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Erinmwingbovo C, Koster D, Brogioli D, La Mantia F. Dynamic Impedance Spectroscopy of Nickel Hexacyanoferrate Thin Films. ChemElectroChem 2019; 6:5387-5395. [PMID: 31894198 PMCID: PMC6919401 DOI: 10.1002/celc.201900805] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/12/2019] [Indexed: 11/21/2022]
Abstract
Dynamic multi-frequency analysis (DMFA) is capable of acquiring high-quality frequency response of electrochemical systems under non-stationary conditions in a broad range of frequencies. In this work, we used DMFA to study the kinetics of (de-)intercalation of univalent cations (Na+ and K+) in thin films of nickel hexacyanoferrate (NiHCF) during cyclic voltammetry. For this system, the classic stationary electrochemical impedance spectroscopy fails due to the instability of the oxidized form of NiHCF. We are showing that such spectra can be fitted with a physical model described by a simple two-step intercalation mechanism: an adsorption step followed by an insertion step. The extracted kinetic parameters are depending on the state of charge as well on the nature of the inserted cation.
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Affiliation(s)
- Collins Erinmwingbovo
- Universität Bremen, Energiespeicher- und EnergiewandlersystemeBibliothekstr. 128359BremenGermany
| | - Dominique Koster
- Universität Bremen, Energiespeicher- und EnergiewandlersystemeBibliothekstr. 128359BremenGermany
| | - Doriano Brogioli
- Universität Bremen, Energiespeicher- und EnergiewandlersystemeBibliothekstr. 128359BremenGermany
| | - Fabio La Mantia
- Universität Bremen, Energiespeicher- und EnergiewandlersystemeBibliothekstr. 128359BremenGermany
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11
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Koster D, Zeradjanin AR, Battistel A, La Mantia F. Extracting the kinetic parameters of the hydrogen evolution reaction at Pt in acidic media by means of dynamic multi-frequency analysis. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Critical Review of the Use of Reference Electrodes in Li-Ion Batteries: A Diagnostic Perspective. BATTERIES-BASEL 2019. [DOI: 10.3390/batteries5010012] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Use of a reference electrode (RE) in Li-ion batteries (LIBs) aims to enable quantitative evaluation of various electrochemical aspects of operation such as: (i) the distinct contribution of each cell component to the overall battery performance, (ii) correct interpretation of current and voltage data with respect to the components, and (iii) the study of reaction mechanisms of individual electrodes. However, care needs to be taken to ensure the presence of the RE does not perturb the normal operation of the cell. Furthermore, if not properly controlled, geometrical and chemical features of the RE can have a significant influence on the measured response. Here, we present a comprehensive review of the range of RE types and configurations reported in the literature, with a focus on critical aspects such as electrochemical methods of analysis, cell geometry, and chemical composition of the RE and influence of the electrolyte. Some of the more controversial issues reported in the literature are highlighted and the benefits and drawbacks of the use of REs as an in situ diagnostic tool in LIBs are discussed.
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13
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Láng GG, Zalka D. On the correct use of stepped-sine excitations for the measurement of time-varying bioimpedance. Physiol Meas 2018; 39:028001. [DOI: 10.1088/1361-6579/aaab0f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Trócoli R, Dushina A, Borhani-Haghighi S, Ludwig A, La Mantia F. Effect of Pt and Au current collector in LiMn 2O 4 thin film for micro-batteries. NANOTECHNOLOGY 2018; 29:035404. [PMID: 29186000 DOI: 10.1088/1361-6528/aa9e33] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The crystal orientation and morphology of sputtered LiMn2O4 thin films is strongly affected by the current collector. By substituting Pt with Au, it is possible to observe in the x-ray diffraction pattern of LiMn2O4 a change in the preferential orientation of the grains from (111) to (400). In addition, LiMn2O4 thin films deposited on Au show a higher porosity than films deposited on Pt. These structural differences cause an improvement in the electrochemical performances of the thin films deposited on Au, with up to 50% more specific charge. Aqueous cells using thin film based on LiMn2O4 sputtered on Au or Pt as the cathode electrode present a similar retention of specific charge, delivering 85% and 100%, respectively, of the initial values after 100 cycles. The critical role of the nature of the substrate used in the morphology and electrochemical behaviour observed could permit the exploration of similar effects for other lithium intercalation electrodes.
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Affiliation(s)
- Rafael Trócoli
- Semiconductor and Energy Conversion Group, Zentrum für elektrochemie-CES, Ruhr-Universität, Universitätsstr. 150, Bochum D-44801, Germany
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15
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Shooshtari L, Iraji zad A, Mohammadpour R. Reproducible electrochemical analysis of nanostructured Cu2O using a non-aqueous 3-methoxypropionitrile-based electrolyte. Electrochem commun 2018. [DOI: 10.1016/j.elecom.2017.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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16
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A new method to compensate impedance artefacts for Li-ion batteries with integrated micro-reference electrodes. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.132] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Trócoli R, Morata A, Fehse M, Stchakovsky M, Sepúlveda A, Tarancón A. High Specific Power Dual-Metal-Ion Rechargeable Microbatteries Based on LiMn 2O 4 and Zinc for Miniaturized Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32713-32719. [PMID: 28885817 DOI: 10.1021/acsami.7b08883] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Miniaturized rechargeable batteries with high specific power are required for substitution of the large sized primary batteries currently prevalent in integrated systems since important implications in dimensions and power are expected in future miniaturized applications. Commercially available secondary microbatteries are based on lithium metal which suffers from several well-known safety and manufacturing issues and low specific power when compared to (super) capacitors. A high specific power and novel dual-metal-ion microbattery based on LiMn2O4, zinc, and an aqueous electrolyte is presented in this work. Specific power densities similar to the ones exhibited by typical electrochemical supercapacitors (3400 W kg-1) while maintaining specific energies in the range of typical Li-ion batteries are measured (∼100 Wh kg-1). Excellent stability with very limited degradation (99.94% capacity retention per cycle) after 300 cycles is also presented. All of these features, together with the intrinsically safe nature of the technology, allow anticipation of this alternative micro power source to have high impact, particularly in the high demand field of newly miniaturized applications.
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Affiliation(s)
- Rafael Trócoli
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, 08930 SantAdrià de Besós, Spain
| | - Alex Morata
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, 08930 SantAdrià de Besós, Spain
| | - Marcus Fehse
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, 08930 SantAdrià de Besós, Spain
| | - Michel Stchakovsky
- HORIBA Scientific , Avenue de la Vauve, Passage Jobin Yvon, 91120 Palaiseau, France
| | | | - Albert Tarancón
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, 08930 SantAdrià de Besós, Spain
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18
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Dynamic impedance spectroscopy using dynamic multi-frequency analysis: A theoretical and experimental investigation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.060] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Najafpour MM, Moghaddam NJ, Hosseini SM, Madadkhani S, Hołyńska M, Mehrabani S, Bagheri R, Song Z. Nanolayered manganese oxides: insights from inorganic electrochemistry. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00215g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electrochemistry of nanolayered Mn oxides in the presence of LiClO4 at pH = 6.3 under different conditions was studied.
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Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
- Center of Climate Change and Global Warming
| | - Navid Jameei Moghaddam
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | | | - Sepideh Madadkhani
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Małgorzata Hołyńska
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW)
- Philipps-Universität Marburg
- D-35032 Marburg
- Germany
| | - Somayeh Mehrabani
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Robabeh Bagheri
- Surface Protection Research Group
- Surface Department
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
| | - Zhenlun Song
- Surface Protection Research Group
- Surface Department
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
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Anderson EL, Bühlmann P. Electrochemical Impedance Spectroscopy of Ion-Selective Membranes: Artifacts in Two-, Three-, and Four-Electrode Measurements. Anal Chem 2016; 88:9738-9745. [DOI: 10.1021/acs.analchem.6b02641] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Evan L. Anderson
- Department of Chemistry, University of Minnesota, 207 Pleasant
Street South East, Minneapolis, Minnesota 55455, United States
| | - Philippe Bühlmann
- Department of Chemistry, University of Minnesota, 207 Pleasant
Street South East, Minneapolis, Minnesota 55455, United States
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21
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Giner-Sanz J, Ortega E, Pérez-Herranz V. Application of a Montecarlo based quantitative Kramers-Kronig test for linearity assessment of EIS measurements. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.131] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Elumeeva K, Masa J, Sierau J, Tietz F, Muhler M, Schuhmann W. Perovskite-based bifunctional electrocatalysts for oxygen evolution and oxygen reduction in alkaline electrolytes. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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Li Z, Lin R, Liu Z, Li D, Wang H, Li Q. Novel graphitic carbon nitride/graphite carbon/palladium nanocomposite as a high-performance electrocatalyst for the ethanol oxidation reaction. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.124] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Elumeeva K, Masa J, Tietz F, Yang F, Xia W, Muhler M, Schuhmann W. A Simple Approach towards High-Performance Perovskite-Based Bifunctional Oxygen Electrocatalysts. ChemElectroChem 2015. [DOI: 10.1002/celc.201500353] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Karina Elumeeva
- Analytical Chemistry - Center for Electrochemical Sciences (CES); Ruhr-Universität Bochum; Universitätsstr. 150 44780 Bochum Germany
| | - Justus Masa
- Analytical Chemistry - Center for Electrochemical Sciences (CES); Ruhr-Universität Bochum; Universitätsstr. 150 44780 Bochum Germany
| | - Frank Tietz
- Forschungszentrum Jülich GmbH; Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1); 52425 Jülich Germany
| | - Fengkai Yang
- Laboratory of Industrial Chemistry; Ruhr-Universität Bochum; Universitätsstr. 150 44780 Bochum Germany
| | - Wei Xia
- Laboratory of Industrial Chemistry; Ruhr-Universität Bochum; Universitätsstr. 150 44780 Bochum Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry; Ruhr-Universität Bochum; Universitätsstr. 150 44780 Bochum Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry - Center for Electrochemical Sciences (CES); Ruhr-Universität Bochum; Universitätsstr. 150 44780 Bochum Germany
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25
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Imprinted electrochemical sensor based on magnetic multi-walled carbon nanotube for sensitive determination of kanamycin. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.07.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Battistel A, Petkovic A, La Mantia F. Intermodulated non-linear analysis of a redox couple in solution. 2. Experimental results. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Minimizing Artifacts in Three-electrode Double Layer Capacitance Measurements Caused by Stray Capacitances. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Fan M, Stojadinović J, Battistel A, La Mantia F. Analysis and Mitigation of Electrochemical Impedance Spectroscopy Artefacts in Four-Electrode Cells: Model and Simulations. ChemElectroChem 2015. [DOI: 10.1002/celc.201500121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Stojadinović J, Fan M, Battistel A, La Mantia F. Analysis and Mitigation of Electrochemical Impedance Spectroscopy Artefacts in Four-Electrode Cells: Experimental Aspects. ChemElectroChem 2015. [DOI: 10.1002/celc.201500029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Long F, Zhang Z, Wang J, Yan L, Zhou B. Cobalt-nickel bimetallic nanoparticles decorated graphene sensitized imprinted electrochemical sensor for determination of octylphenol. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.054] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dushina A, Stojadinović J, La Mantia F. Effect of the mass transport limitations on the stability window of electrolytes for metal-ion batteries. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.03.182] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zampardi G, Ventosa E, La Mantia F, Schuhmann W. Scanning Electrochemical Microscopy Applied to the Investigation of Lithium (De-)Insertion in TiO2. ELECTROANAL 2015. [DOI: 10.1002/elan.201400613] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Rincón RA, Battistel A, Ventosa E, Chen X, Nebel M, Schuhmann W. Using cavity microelectrodes for electrochemical noise studies of oxygen-evolving catalysts. CHEMSUSCHEM 2015; 8:560-566. [PMID: 25556938 DOI: 10.1002/cssc.201402855] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 11/30/2014] [Indexed: 06/04/2023]
Abstract
Cavity microelectrodes were used as a binder-free platform to evaluate oxygen evolution reaction (OER) electrocatalysts with respect to gas bubble formation and departure. Electrochemical noise measurements were performed by using RuO2 as a benchmark catalyst and the perovskite La0.58 Sr0.4 Fe0.8 Co0.2 O3 as a non-noble metal OER catalyst with lower intrinsic conductivity. Changes in the current during the OER originate from variations in electrolyte resistance during the formation of the gas phase and partial coverage of the active area. Fluctuations observed in current and conductance transients were used to establish the contribution from the ohmic overpotential and to determine the characteristic frequency of oxygen evolution. The proposed quantitative determination of gas bubble growth and departure opens up the route for a rational interface design by considering gas bubble growth and departure as a main contributing factor to the overall electrocatalytic activity at high current densities.
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Affiliation(s)
- Rosalba A Rincón
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum (Germany)
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Impedance Spectra of Energy-Storage Electrodes Obtained with Commercial Three-Electrode Cells: Some Sources of Measurement Artefacts. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.10.083] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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