Author
D. Tessier
Bio: D. Tessier is an academic researcher from University of Paris. The author has contributed to research in topics: Medicine & Imaging phantom. The author has an hindex of 11, co-authored 12 publications receiving 1491 citations.
Topics: Medicine, Imaging phantom, Engineering, Voltammetry, Computer science
Papers
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TL;DR: In this article, the diffusion effects induced by partial blocking of an electrode surface toward electron transfer are analyzed in the case where the blocking film is sprinkled with a large number of microscopic, active sites.
733 citations
TL;DR: In this article, the authors applied convolution potential sweep voltammetry to the analysis of charge transfer kinetics and found that the postfactum experimental kinetics deviate significantly from the Butler-Volmer behavior, involving a dependence of the transfer coefficient α upon the electrode potential.
212 citations
TL;DR: In this paper, an electrochemical treatment of the former electrodes was proposed, involving the repetitive cycling of the electrode potential within a negative range, and a steady value of the apparent standard rate constant was obtained which was not very different from the values obtained on mercury and on glassy carbon.
102 citations
TL;DR: In this article, the application of Convolution Potential Sweep Voltammetry to mechanism analysis and rate determination in electrochemical processes involving homogeneous chemical reaction is discussed, and the formal analysis of the transition between pure diffusion control and pure kinetic condition is treated in the case of a first order follow-up reaction.
93 citations
TL;DR: In this paper, the role of sweep rate in kinetic analysis by convolution potential sweep voltammetry is underlined and a method is evaluated over 3.5 orders of magnitude sweep rate using the fluorenone-fluorenone anion couple in acetonitrile.
91 citations
Cited by
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TL;DR: In this paper, the electron transfer reactions between ions and molecules in solution have been the subject of considerable experimental study during the past three decades, including charge transfer, photoelectric emission spectra, chemiluminescent electron transfer, and electron transfer through frozen media.
7,155 citations
Book•
01 Jan 2008
TL;DR: In this paper, the authors provide guidelines for experimental design, discuss the relevance of accuracy contour plots to wiring and instrumentation selection, and emphasize the importance of the Kramers-Kronig relations to data validation and analysis.
Abstract: Electrochemical impedance spectroscopy (EIS) is a powerful tool to investigate properties of materials and electrode reactions. This Primer provides a guide to the use of EIS with a comparison to other electrochemical techniques. The analysis of impedance data for reduction of ferricyanide in a KCl supporting electrolyte is used to demonstrate the error structure for impedance measurements, the use of measurement and process models, as well as the sensitivity of impedance to the evolution of electrode properties. This Primer provides guidelines for experimental design, discusses the relevance of accuracy contour plots to wiring and instrumentation selection, and emphasizes the importance of the Kramers-Kronig relations to data validation and analysis. Applications of EIS to battery performance, metal and alloy corrosion, and electrochemical biosensors are highlighted. Electrochemical impedance measurements depend on both the mechanism under investigation and extrinsic parameters, such as the electrode geometry. Experimental complications are discussed, including the influence of nonstationary behaviour at low frequencies and the need for reference electrodes. Finally, emerging trends in experimental and interpretation approaches are also described.
1,497 citations
TL;DR: On conducting substrates, colloid monolayers are electrochemically addressable and behave like a collection of closely spaced microelectrodes, which suggest a widespread use for metal colloid-based substrates.
Abstract: The self-assembly of monodisperse gold and silver colloid particles into monolayers on polymer-coated substrates yields macroscopic surfaces that are highly active for surface-enhanced Raman scattering (SERS). Particles are bound to the substrate through multiple bonds between the colloidal metal and functional groups on the polymer such as cyanide (CN), amine (NH(2)), and thiol (SH). Surface evolution, which can be followed in real time by ultraviolet-visible spectroscopy and SERS, can be controlled to yield high reproducibility on both the nanometer and the centimeter scales. On conducting substrates, colloid monolayers are electrochemically addressable and behave like a collection of closely spaced microelectrodes. These favorable properties and the ease of monolayer construction suggest a widespread use for metal colloid-based substrates.
1,243 citations
TL;DR: In this paper, the authors used cyclic voltammetry, X-ray photoelectron spectroscopy, polarization modulation IR reflection absorption spectrograms, Auger spectrographic analysis, and Rutherford backscattering spectrographs to estimate the surface coverage of carbon-epoxy composites.
Abstract: Electrochemical reduction of a wide variety of aromatic diazonium salts on carbon electrodes (glassy carbon, highly oriented pyrolytic graphite) leads to the covalent attachment of the corresponding aromatic radicals The films thus deposited on glassy carbon surfaces require mechanical abrasion to be removed Cyclic voltammetry, X-ray photoelectron spectroscopy, polarization modulation IR reflection absorption spectroscopy, Auger spectroscopy, and Rutherford backscattering spectroscopy allow the characterization of the overlayer and an estimate of the surface coverage The latter can be controlled through diazonium concentration and electrolysis duration The mechanism of derivatization is discussed on the basis of the kinetic data obtained from cyclic voltammetry and preparative electrolysis This versatile method of surface modification may find applications in the field of carbon−epoxy composites as attested by the successful binding of grafted p-aminophenyl groups with epichlorhydrin
996 citations
TL;DR: This article overviews recent work in this area which has led it to believe that much of the catalytic activity, electron transfer and chemical reactivity of graphitic carbon electrodes is at surface defect sites, and in particular edge-plane-like defect sites.
895 citations