Showing papers in "Journal of Electroanalytical Chemistry in 1979"

TL;DR: In this article, the equation of the linear potential sweep voltammogram is derived for any degree of reversibility of the electrochemical reaction for the following methods: surface voltammetry when both the oxidized and the reduced forms are strongly adsorbed, and a Langmuir isotherm is obeyed, thin layer voltamometry, and linear potential sweeping coulometry.

TL;DR: In this paper, the use of linear potential sweep (l.p.s.) voltammetry and of a.c.c voltammograms for the study of the surface electrochemical reaction of strongly adsorbed systems and of redox modified electrodes is discussed.

TL;DR: In this paper, an exact formula for the contact value of a system of charged hard spheres near a charged hard wall is obtained by means of a general statistical mechanical argument, and the formula becomes exact for large fields, independent of the density of hard spheres.

TL;DR: In this paper, a model of hexagonal array of cylidrical spaces terminated at the electrode surface by concentric active and inactive regions was derived for chronopotentiometry and chronoamperometry at partially covered electrodes.

TL;DR: In this article, the transfer of Cs + ion across the interface of two immiscible electrolyte solutions, LiCl in water and 0.05 M tetrabutylammonium tetraphenylborate in nitrobenzene, was investigated by cyclic voltammetry with four-electrode system.

TL;DR: In this article, the anodic oxidation of glucose on platinum in phosphate buffer solution (pH=7.5) at potentials below 350 mV/RHE was investigated by cyclic voltammetry, chronoamperometry and adsorption measurements.

TL;DR: In this article, the adsorption of hydrogen on Pt(100), (110) and (111) electrodes from 0.5 M H2SO4 has been investigated by measuring potentiodynamic adaption and desorption spectra.

TL;DR: In this article, the experimental parameters of cathodic stripping voltammetry have been studied and optimised, and the use of a cell with a mercury pool electrode has been proposed, which is valuable for the determination of several classes of organic compounds, including thiols, disulfides, flavins, flavones, pterins and porphyrins.

TL;DR: In this paper, the effect of inhomogeneity of the electrode surface on the linear potential sweep and cyclic voltammograms is investigated theoretically and experimentally using model electrodes partially covered with photoresist layer.

TL;DR: In this paper, the variation of voltammetric charge with real surface area was investigated for RuO2-coated titanium foils with a view to establishing an electrochemical technique for the estimation of the latter.

TL;DR: The surface of molybdenum metal was examined by XPS after exposure to gaseous and liquid systems and after electrochemical treatment as discussed by the authors, the latter being conducted in a specially designed electrochemical cell situated in a vacuum chamber attached to the main spectrometer chamber.

TL;DR: In this article, the work function of the electrodes is shown to be independent of the electrode material, and linearly dependent with unity slope upon the electrode potential applied before and during emersion.

TL;DR: The expression of the faradaic impedance in the case of a quasi-reversible system O+ne R under the following conditions: (a) both oxidized and reduced forms are strongly adsorbed; (b) the adsorption rate is large, and does not control the kinetics of the system; and (c) the adaption of both O and R obeys a Langmuir isotherm.

TL;DR: In this paper, the faradaic impedances at model electrodes partially covered with a photoresist layer have been studied theoretically and experimentally, and the applicability of the derived equations to the estimation of the degree of coverage and the size of the active regions is confirmed.

TL;DR: The number of platinum sites occupied by a foreign atom was determined with use of pulse technique as mentioned in this paper, and the foreign atoms included are Cu, Ag, Cd, Hg, In, Tl, Ge, Sn, Pb, Se, Te, As, Sb, and Bi The approximate value is 1 for the first two, 2 for the next nine and 3 for the others Silver and copper ad-atoms are closely packed on the platinum surface, but the other elements are arranged on the surface leaving geometrical room on it even when a complete mon

TL;DR: In this article, the number of the pairs (nPt−Pt) decrease, thus resulting the decrease of the recombination of adsorbed hydrogen hence the reduction of the hydrogen evolution rate.

TL;DR: In this article, the effect of complexing property of crown ether derivatives on the electrode response was investigated and the preference for potassium over sodium of the electrodes was found to exceed the corresponding monocyclic crown ether considerably.

TL;DR: In this paper, the potentiodynamic sweep method was used for qualitative evaluation of the behavior of electrochemical processes and provided a quantitative kinetic basis for evaluation of reversibility of electrocatalyst processes in a monolayer at an electrode surface.

TL;DR: In this paper, the preparation of photosensitive anodic Bi2S3 films is described and the quantum yield of the photocurrent, which approaches unity above 2 eV, has been measured as a function of the wavelength of excitation, and the results have been used to determine the absorption spectrum.

TL;DR: Pt(100) and (111) single-crystal surfaces containing adsorbed iodine were characterized by a combination of electron techniques in ultra-high vacuum (UHV) and electrochemical methods in aqueous solution.

TL;DR: In this article, the authors investigated the anodic oxidation of galena by cyclic voltammetry in stirred and quiescent solutions and concluded that the sulphur produced by the electrochemical reaction is of an amorphous or plastic form which inhibits further oxidation of the galena surface.

TL;DR: In this paper, a variety of electrochemical approaches have been used to investigate the adsorption of NAD*, NADH and the NAD-NXD dimer from aqueous solution at glassy carbon electrodes (GCE).

TL;DR: The theoretical fundamentals of the kinetics of ion and electron transfer reactions at the interface between two immiscible electrolyte solutions have been discussed on the basis of the present theory of chemical reactions in polar media.

TL;DR: In this paper, the state of an arsenic layer electrodeposited at various potentials on platinum electrodes has been examined electrochemically and the relation between the state and the electrocatalytic activity for hydrogen evolution has been investigated.