Showing papers in "Electrochimica Acta in 1988"

TL;DR: In this paper, it was shown that the continued existence of the MeN 4 moiety of the chelate is the structural feature associated with the high activity of heat-treated materials.

TL;DR: In this paper, it was shown that an irreversible redox process at an electrode, the surface of which has the property of fractal roughness, gives rise to a depressed semi-circular arc in the complex impedance plane.

TL;DR: In this paper, it has been shown that the reactivation of an anodic oxide film in acid solution is due to uniform chemical dissolution of the oxide film, and that the rate of dissolution and hence the stability of oxide, depend on the rate at which the oxide had been formed as well as on solution composition and temperature.

TL;DR: In this paper, the galvanostatic anodization of commercially pure titanium is studied with current densities lower than 500 A m −2 in 1 M sulphuric acid between 25 and 75°C.

TL;DR: In this paper, a ring-substituted anilines, with electron donor and acceptor substituents in the 2-and 3-positions, was investigated in 2.0 M sulfuric acid.

TL;DR: In this paper, the electrooxidation of methanol on porous carbon electrodes impregnated with bimetallic platinum group catalysts, Pt/M (M = Au, Os, Ir, Pd and Ru), in a H2SO4 electrolyte is reported.

TL;DR: In this paper, the authors discuss electrocoagulation of waterborne polymers and coupling of anodic electropolymerization of (hetero) aromatics, and combine these two methods for corrosion protection of iron substrates.

TL;DR: In this article, the influence of reactant adsorption on square-wave voltammograms of totally irreversible redox reactions is analyzed theoretically, and the properties of the response ip, Ep and ΔEp/2 are expressed by the equations 6, 7 and 8, respectively.

TL;DR: The morphol. examn. and study of the crystal structure of oxygen-evolving dimensionally stable anodes (DSA) has shown that the deposit takes the form of a cobble-stone road because of the thermal shock following its prepn at 550 degrees as mentioned in this paper.

TL;DR: In this paper, a radiotracer method was used to study the sorption of labelled HSO−4 and SO2−4 ions into polyaniline films and found that the oxidation/reduction processes are accompanied by simultaneous changes in the anion sorption.

TL;DR: In this article, a kinetic examination of the charge-transport process (i) heterogeneous electron-transfer process at electrode-film interfaces and (ii) homogeneous charge transport process within films) at poly(o-aminophenol (PAP) film-coated electrodes, which were prepared in situ by electro-oxidative polymerization of o-ammonophenol in an acidic solution, has been conducted by potential-step chronoamperometry (and chronocoulometry) and normal pulse voltammetry.

TL;DR: In this article, the efficiencies of different anodic reactions observed during the galvanostatic anodization of commercially pure titanium in 1 M sulphuric acid between 25 and 75°C have been studied.

TL;DR: In this article, a model for the inhibition mechanism is proposed, according to which disproportionation of the Cu(I) ions followed by formation of a CuCl layer constitutes a suitable base for Cu-inhibitor complex formation.

TL;DR: In this article, the Kolb correlation between underpotential deposition and work function is discussed taking into account substrate and adsorbate orientation, and charge values indicate that the adsorption process leads to the formation of a first monolayer which follows the substrate orientation.

TL;DR: In this article, the authors showed that the formation of the Cu(OH) 2 layer fits a progressive nucleation and 2-D growth under charge transfer control in the −0.175 ⩽ E ⊽ − 0.10 V range.

TL;DR: In this article, the authors investigated the kinetics of the adsorption of albumin on a platinum rotating disk electrode using impedance measurements and proposed a model of two consecutive reactions occuring at the interface.

TL;DR: In this paper, the relation between the fractal geometry of the interface and the frequency dispersion of the impedance was investigated and it was proved theoretically in a previous work that no straight-forward relation exists between fractal dimension and exponent of the fractional frequency distribution.

TL;DR: In this article, the electrocatalytic properties of amorphous metals containing Fe, Co, and Ni as main components have been studied for the oxygen and hydrogen evolution in 1 M KOH at four different temperatures, T = 298, 323, 348, and 363 K.

TL;DR: In this article, the electrocatalytic properties of hydrous oxide films obtained by repetitive square-wave potential perturbations for the oxygen evolution reaction in alkaline solutions are studied.

TL;DR: In this paper, the behavior of electrodes coated with electronically insulating but permeable films is reviewed, focusing on films with ion-exchange properties, and the structure of the metal-film interphase, the film-solution interphase with its membrane equilibria, and transport processes across the films including the role of migration.

TL;DR: In this article, steady state polarization curves for hydrogen evolution in alkaline solution at crystalline and amorphous nickel electrodes were measured at different temperatures, showing at higher c.d. the establishment of a limiting c.iR-corrected steady-state polarization curve for increasing Had coverage.

TL;DR: In this article, a spectroelectrochemical flow cell was used with the SNIFTIRS method to obtain spectra from the adsorbed reaction intermediates involved in methanol oxidation at a platinum electrode in acid solution.

TL;DR: In this paper, the factors influencing the transfer of Ce(IV) from aqueous solutions to organic solvents using either tetrabutylammonium ion or tributylphosphate as the extractant are investigated.

TL;DR: In this article, it is shown that Nyikos and Pajkossy's theoretical results on fractal electrolyte/blocking electrode interfaces have been tested with numerical calculations.

TL;DR: In this paper, the behavior of copper in chloride solution has been studied by cyclic voltammetry and it was found that although the voltammograms presented several anodic peaks, there was only one cathodic peak whose intensity and potential does not depend on the potential of the reverse sweep in the cathodic direction.

TL;DR: In this article, the electrocatalytic hydrogenation of several functional groups has been studied at high surface area nickel, palladium, platinum and rhodium cathodes in methanol as a function of pH and current density.

TL;DR: In this article, a correlation was found between E ox and the basicity of the solvents, expressed by their donor numbers (DN), which indicated that Esters and sulfones have higher resistance to oxidation than ethers.

TL;DR: In this paper, the formation of lead monoxide in the corrosion layer at lead electrodes in sulphuric acid was investigated using photocurrent spectroscopy and cyclic voltammetry and ac impedance measurements.

TL;DR: In this article, the effects of different experimental parameters influencing the determination of critical pitting and protection potentials of aluminium and its alloys are discussed, and the effect of intermetallic phase composition is investigated in a certain range.

TL;DR: In this article, the active site for charge transfer reaction was concluded to be at an interior surface of the metal layer bound to Nafion, and it was suggested that SPE composite electrodes behaved in the same manner as polymer coated electrodes.