scispace - formally typeset
Search or ask a question

Showing papers in "Journal of Electroanalytical Chemistry in 1978"



Journal ArticleDOI
TL;DR: In this article, an efficient finite difference simulation procedure for the steady state and transient solution of the Nernst-Planck and Poisson equation system is presented, containing refinements in time and distance scaling.

242 citations


Journal ArticleDOI
TL;DR: In this article, low energy electron diffraction patterns were obtained for Pt(100), Pt(111), and polycrystalline electrodes before and after exposure to aqueous 1 M H 2 SO 4.

207 citations


Journal ArticleDOI
TL;DR: In this paper, a combined ellipsometric and reflectometric measurement was performed on iridium oxide, and the results of these measurements showed that a hydroxide layer with n film = 1.44-0.01 i and a thickness which may exceed 2000 A remains even at cathodic potentials on the Ir electrode, as a result of multicycling.

203 citations


Journal ArticleDOI
TL;DR: In this paper, a detailed kinetic analysis of redox catalysis in the case of an EC-type electrode reaction is given involving the following reaction sequence B → k C A + 1 e ⇌ B B → C } direct electrode reduction of the substrate.

168 citations


Journal ArticleDOI
TL;DR: In this paper, the possible definition of chemical species disolved in natural waters is discussed using electroanalytical techniques, and the time of measurement is identified as the critical parameter for determining which species in solution will be measured when using transient techniques.

161 citations


Journal ArticleDOI
TL;DR: In this paper, a review of iR elimination is presented, covering the effects of uncompensated resistance, instrumental and non-instrumental methods of eliminating it, stability analyses, and a brief discussion of distributed parameters.

145 citations


Journal ArticleDOI
TL;DR: In this article, the electroreduction of bovine serum albumin (BSA) in pH 7.4 solution was studied at the hanging mercury drop electrode by double potential step chronocoulometry and cyclic voltammetry, and at a mercury pool electrode by controlled potential coulometry.

116 citations


Journal ArticleDOI
TL;DR: In this article, the hydrogen and oxygen adsorption properties of ruthenium surfaces are characterized and shown to be analogous to those of other noble metals, including Pd, Rh, Ir, Pt and Au.

113 citations


Journal ArticleDOI
TL;DR: The electrochemical oxidation of uric acid and xanthine has been studied at various graphite electrodes and at a gold electrode by a variety of techniques including cyclic voltammetry, double potential step chronoamperometry, and thin-layer spectroelectrochemistry as mentioned in this paper.

110 citations



Journal ArticleDOI
TL;DR: In this article, it was shown that the action of 2,4-dinitrophenylhydrazine on polymers of the PPO-carbonyl leads to new polymer films in which a part of the C=0 groups have been replaced by C=N−NH−Φ groups.

Journal ArticleDOI
TL;DR: In this article, the reduction of chlorobenzene in DMF with tetrabutylammonium as supporting cation is taken as an example illustrating the occurrence of homogeneous catalysis under the following conditions: (a) charge tranfer control of uncatalyzed reduction of the substrate, (b) activation and diffusion control of the solution electron exchange between substrate and catalyst.

Journal ArticleDOI
TL;DR: In this article, the model of two diffuse layers separated by an inner compact layer was tested again on the water-nitrobenzene interface, and the potential differences between the two phases, measured for various concentrations of R+, lead to an electrocapillary curve comparable to the curve obtained with the classical mercury-aqueous solution system.

Journal ArticleDOI
TL;DR: In this article, an open circuit charge injection (coulostatic) technique was employed to measure electron transfer kinetics for reactants confined to the surface of graphite electrodes, and the rate constant for the reduction of 9,10-phenanthrenequinone at its formal potential in 1 M HClO4 was evaluated as 320 s−1 at 22°C.

Journal ArticleDOI
TL;DR: In this paper, the effects of low concentrations of polyethylene glycols (Polyox) in an acid copper sulphate plating solution were investigated and the results suggest that below the critical overpotential chloride ions hold a film of Polyox onto the electrode surface and may also give the film some lateral cohesion.

Journal ArticleDOI
TL;DR: In this paper, two-electrode thin layer experiments have been carried out in the system Ag(hkl)/Pb 2+, ClO 4 − in order to determine independently the charge and Pb 2 + coverage fluxes of the lead underpotential adsorption.

Journal ArticleDOI
TL;DR: In this paper, the effects of foreign metal monolayers deposited at underpotentials have been found for the oxidation of formic acid on palladium electrode, and the results have bearing on the understanding of the catalytic effects observed under comparable conditions on platinum and rhodium.

Journal ArticleDOI
TL;DR: Differential pulse voltammetric oxidation of natural and biosynthetic polynucleotides may provide a valuable technique for probing A-T and G-C regions during structural and conformational changes of these molecules and for following their interactions with other solution species.

Journal ArticleDOI
TL;DR: In this article, a ruthenium pyridine complex is immobilized on glassy carbon and Pt surfaces in an RF plasma discharge, and surface waves corresponding to 3 x ten to the minus 8th power moles/sq cm ferrocene are obtained in this way.

Journal ArticleDOI
TL;DR: The ionic conductivity of pressed pellets of Na1+xZr2SixP3−xO12 (1.6


Journal ArticleDOI
TL;DR: In this paper, the combined 2-and 4-electron processes for oxygen reduction in alkaline solution are reexamined for mechanisms involving hydrogen peroxide decomposition of heterogeneous catalytic type.

Journal ArticleDOI
TL;DR: In this article, the kinetics of the Fe(CN) 6 3− /Fe(CN 6 4− ) redox reaction on a polycrystalline gold electrode in KF solutions was studied by the potential step method.

Journal ArticleDOI
TL;DR: In this paper, the formation of a condensed film in the adsorption of adenosine at the interface mercury/electrolyte was investigated by means of the differential capacity-time dependence combined with the potential-step method.

Journal ArticleDOI
TL;DR: In this paper, the authors studied the kinetics of the Fe3+/Fe2+ reaction on Pt and Au rotating disk electrodes in 0.5 M HClO4 solutions and found that the reaction rate is trongly affected by adsorption of traces of anionic impurities.

Journal ArticleDOI
TL;DR: In this article, the reaction rate of the coulometric variant of the Karl-Fischer titration reaction (in which electrolytically generated triiodide is used as oxidant instead of iodine) has been measured in methanol.

Journal ArticleDOI
TL;DR: In this article, a rhodium surface in base to repetitive triangular potential sweeps over the range 0 to 1.55 V (HE) resulted in the formation of a thick oxide film, which was only in solutions of high pH and the rate of increase per cycle was observed to depend on such factors as hydroxide ion concentration, sweep limits, sweep rate, temperature, and the amount of oxide already present.

Journal ArticleDOI
TL;DR: In this article, the electrochemical properties of sulfur adsorbed on gold electrodes were studied in 10−5 M solutions of S2− in 1 M NaOH, and the double layer capacity decreases during adsorption of sulfur indicating the formation of an insulating sulfur layer with a dielectric constant of about 2.

Journal ArticleDOI
TL;DR: In this paper, it was shown that electrodes can be removed from solution with their double layers intact and the electrolyte otherwise absent, at any potential not dominated by Faradaic currents, on either side of the p.z.c. potential.