Showing papers in "Electrochimica Acta in 1994"

TL;DR: In this article, the product selectivity between CO and HCOO− has been investigated, which depends upon the combination of modifier atom and substrate electrode, and the order of CO selectivity agrees roughly with the electrode potential of CO2 reduction, and is rationalized in terms of stabilization of intermediate species CO−2 at the electrode surface.

TL;DR: In this article, a simplified mechanism for the electrochemical oxidation or combustion of organics is presented according to which selective oxidation occurs with oxide anodes (MOx) forming the so-called higher oxide MOx+1 and combustion occurs with electrodes at the surface of which OH radicals are accumulated.

TL;DR: In this paper, the effect of conductivity and transference number on cell performance was assessed for a lithium negative electrode, solid polymer separator, and manganese dioxide composite positive electrode cell.

TL;DR: In this paper, the authors used in situ FTir spectroscopy to establish the nature of the strongly adsorbed species of ethanol using isotope labelled ethanol (12CH133CH2OH) discriminate between both carbon containing groups.

TL;DR: In this article, the authors show that poly-3-(4-fluorophenyl)-thiophene, in a solution of 1 mol dm−3 tetramethylammonium trifluoromethanesulfonate in acetonitrile, can be n-and p-doped reversibly and to high charge density.

TL;DR: In this paper, the surface composition of polycrystalline Pt-Ru alloy electrodes was investigated for the electro-oxidation of methanol, formic acid, and carbon monoxide in sulfuric acid electrolyte.

TL;DR: In this article, the influence of the Li salt used on the behaviour of Li electrodes in tetrahydrofurane (THF) and propylene carbonate (PC) solutions was investigated.

TL;DR: In this paper, the electrochemical properties of gel electrolytes formed by the immobilization in a poly(acrylonitrile) matrix of solutions of common lithium salts (eg LiClO4, LiAsF6 and LiN(CF3SO2)2) in organic solvents (eg the propylene carbonate) were determined.

TL;DR: In this article, the kinetic laws which govern the oxidation process of ethanol on smooth platinum electrodes in acid medium, electrolyses of ethanol were carried out under different experimental conditions and the influence of the initial ethanol concentration and of the potential plateau of electrolysis were investigated and allowed them to improve their understanding of the reaction mechanism.

TL;DR: In this article, the performance of synthetic graphite and petroleum coke electrodes in a variety of Li salt solutions was investigated using FTIR spectroscopy in conjunction with electrochemical techniques, and it was found that the performane of these Li-C anodes in terms of capacity and cycle life is determined by the passivating ability of the surface films.

TL;DR: In this article, several recently developed experimental techniques are applied to such corrosion systems to elucidate the fundamental corrosion processes for polymer coated metals, and the combined application of these techniques leads to a corrosion model, which explains the corrosion protection of metals by polymers.

TL;DR: In this paper, in situ infrared (FTIR) spectroscopy and differential electrochemical mass spectrometry (DEMS) was used to study the adsorption and electrooxidation of CO on polycrystalline Pt and PtRu alloys.

TL;DR: In this paper, the influence of current density, pyrrole concentration and KNO3 addition on the electrodeposition process and the electrochemical and physical properties of the layers are studied in detail.

TL;DR: The Winand's diagram has been used at Universite Libre de Bruxelles as the basis for the chloride electrodeposition of metals, for high current density plating and electrorefining, and for initiating research concerning organic additives as discussed by the authors.

TL;DR: In this article, a transition metal chalcogenide was synthesized at 140°C and a catalyst compound was obtained when reacting the corresponding transition metal carbonyl compounds and elemental selenium in xylene solvent.

TL;DR: The first technical applications for polypyrrole conductors are now beginning to emerge as mentioned in this paper, and they have been used in a wide range of applications in antistatic packaging materials.

TL;DR: In this article, the formation of nickel hydrides in the potential region of the her was previously analyzed by cyclic voltammetry and the electrode surface was pre-conditioned to minimize the effect of the hydride in the experimental response of the system.

TL;DR: In this paper, it was shown that in many instances electrocatalytic processes at noble metal electrode/aqueous solution interfaces involve hydrous oxides as mediators and inhibitors in oxidation and reduction processes, respectively.

TL;DR: In this paper, the deactivation mechanisms of oxygen evolving DSAs® in strongly acidic, sulphate-based electrolytes have been described and separated into classes, in order to clarify the reasons of their occurrence as a function of operating conditions.

TL;DR: Theoretical and experimental aspects of alloy plating for surface treatment of metals are reviewed from an electrochemical and materials science point of view in this paper, where the importance of mass transport and current distribution for alloy deposition studies is pointed out.

TL;DR: In this paper, three perfluorosulfonic acid membranes (Nafion 120, Nafion 117 and Dow) were characterized by conductivity measurements in the temperature range of 20-90°C and by Small-Angle X-Ray Scattering (SAXS) at room temperature.

TL;DR: In this paper, the effects of the potential and the pH on the electrocatalytic oxidation of glycerol at platinum electrodes were investigated by liquid chromatography during controlled potential long-term electrolyses.

TL;DR: In this paper, the voltammetric contribution of specific adsorbed anions (acetate, oxalate, chloride and bromide) is revised for the case of Pt(111) electrodes by means of experiments of displacement by CO in acidic medium.

TL;DR: In this article, the properties of ionically conducting polymers are reported and discussed in view of their application in advanced design, rechargeable batteries and in laminated electrochromic devices.

TL;DR: In this paper, the electro-oxidation and -reduction of 0.05 M ammonia, 0.01 M hydroxylamine and 0.5 M KOH at Pt-black electrodes has been investigated using a combination of cyclic voltammetry with on-line MS analysis of volatile products.

TL;DR: An overview of the electrochromism of conducting polymers is given in this paper, where several methods for the evaluation of conducting polymer electrochromisms are also reviewed, and several methods to evaluate conducting polymer performance are presented.

TL;DR: In this paper, the authors describe the effect of surface crystallography on pyridine adsorption at gold single crystal electrodes and assess the effect on the reconstruction phenomena using second harmonic generation (SHG) and electroreflectance (ER) spectroscopy.

TL;DR: In this article, the absorption of sulfate species was studied on well ordered Pt(111) surfaces at pH 2.8 and 0.23 using in situ external reflectance ir spectroscopy.

TL;DR: It is shown, with the aid of recent data, that the conclusions drawn from the phenomenological approach have always been consistent with data obtained with other complementary techniques.

TL;DR: In this article, a new type of sonoelectroreactor is presented, whose most interesting characteristic is the nature of the working electrode which is made up of the immersed titanium horn itself (anode or cathode).