Showing papers in "Journal of Electroanalytical Chemistry in 1991"

TL;DR: In this article, the surface coverage of the oxidized n-alkanethiol species is shown to be 9.3×10−10 mol/cm2 and 7.0 × 10−10 cm2 on Au and Ag, respectively.

TL;DR: In this article, an alternative construction of the sandwich-type IR OTTLE cell is presented, where the working Au- or Pt-mesh, twinned Ag-wire reference and auxiliary electrodes are melt-sealed into a polyethylene spacer.

TL;DR: In this article, the electrochemical behavior of various non-aqueous organic electrolyte systems has been investigated using inert metal electrodes, which included polycrystalline gold and silver, and various techniques including cyclic voltammetry, FTIR and XPS were used to characterize the main electrochemical reactions that occur in these systems.

TL;DR: In this article, the authors describe the first example of the Electrochemical Atomic Layer epitaxy (ECALE) method, involving the thin-layer electrodeposition of CdTe on a Au polycrystalline electrode.

TL;DR: In this article, the authors used the chronoamperometric response at a microdisk for the direct determination of the diffusion coefficient of an electroactive species, which does not require knowledge of the bulk concentration and the number of electrons participating in the electrode reaction and requires only a value for the disk radius.

TL;DR: In situ electrochemical scanning tunneling microscopy (ESTM) is applied to a gold(111) surface with atomic resolution in aqueous sulfuric add solutions.

TL;DR: In this paper, the time dependence of the diffusion controlled current towards fractal interfaces is investigated in terms of a real system (rough platinum) and it is shown how an electrochemical surface characterization procedure can be elaborated by using fractal concepts.

TL;DR: In this paper, the electrogenerated chemiluminescence (ECL) of Ru(dp-bpy)2+3 and RuCdp-phen 2+3 in acetonitrile and aqueous solutions was studied.

TL;DR: In this paper, the assisted transfer of potassium by dibenzo-18-crown-6 at the water-1,2-dichloroethane interface was investigated.

TL;DR: In this paper, the influence of pH, ionic strength, isotopic substitution and different anions on the redox switching of electrochemically prepared polyaniline (PANI) films under first cycle and multicycle conditions was investigated.

TL;DR: In this paper, a simple technique was described for constructing a glucose sensor by the entrapment of glucose oxidase in a polyaniline film which was electrochemically deposited on a platinum foil (4 mm × 4 mm).

TL;DR: In this paper, the adsorption parameters of pyridine on an Au(111) single crystal electrode surface have been determined as a function of the electrode potential and surface charge density.

TL;DR: In this article, it was shown that, depending on the specific fitting model and parameter values, there are some limiting situations where bulk resistance, reaction resistance, or diffusion exchange rate cannot be estimated with adequate precision by complex nonlinear least squares fitting.

TL;DR: In this paper, the diffusion coefficients were determined by scanning electron microscopy and the measured currents and other relevant parameters were determined with electrodes of 50 μm radius under conditions where time dependent currents are observed.

TL;DR: In this paper, a fast implicit finite difference (FIFD) method was proposed to handle homogeneous and heterogeneous rate constants of any order of magnitude with potential steps of several millivolts.

TL;DR: In this paper, the electrochemical lithium insertion reaction into the vanadium pentoxide xerogel V2O5· has been investigated by structural, thermodynamic and kinetic studies, and two one-phase regions for the composition ranges 0 $ > 5sx 10−11 cm2 s−1, its low electronic conductivity hinders utilisation of high current densities.

TL;DR: In this paper, a new voltammetric profile is obtained for Pt(100) electrodes in perchloric acid solutions when the amount of oxygen adsorbed during the flame cleaning procedure is reduced to a minimum by cooling the sample in a H2 + Ar atmosphere.

TL;DR: In this article, the four-electron oxidation of hydrazine is employed as a probe of multiple electron charge transfer processes at the Ni[Fe(CN)6]2−/− interface.

TL;DR: In this paper, the O2 reduction reaction on Pt (111, (100) and (110) planes is found not to be very sensitive to the structure of the surface in l M HClO4 solution, for which the anion adsorption is weak.

TL;DR: In this paper, the authors used scanning tunneling microscopy to follow the progress of copper electrocrystallization on Au(111) and found that the copper deposit redissolves at potentials positive of the Nernst potential, and the surface generally returns close to the state it was in before the bulk copper deposition.

TL;DR: In this paper, the electropolymerization mechanism of pyrrole at platinum micro-and macroelectrodes was investigated and it was found that polypyrrole growth was largely the result of the continual precipitation of oligomeric intermediates from solution rather than the sequential addition of polyrole monomers to the polymer chain ends of the deposited polymer.

TL;DR: In this paper, two kinetic models which can explain the coupling between electrochemical charge transfer and the charge transport in polymer films of film-modified electrodes are analyzed, based on a diffusion-like process due to the mutual electron exchange between adjacent redox centers.

TL;DR: In this article, a model for the underpotential deposition of metals that occurs in stages is introduced, where the deposition takes place as a sequence of first order phase transitions of the adsorbate.

TL;DR: In this paper, the irreversible adsorption of submonolayer and monolayer coverages of palladium on clean Pt(111) has been investigated by means of cyclic voltammetry in sulphuric and perchloric acid.

TL;DR: In this article, cyclic voltammetry was used to investigate the mechanism of the initial step of the electropolymerization of diphenylamine in acetonitrile.

TL;DR: In this paper, the authors investigated the oxidation of α-D(+)-glucose on a platinum electrode in 0.1 M NaOH by in situ Fourier transform infrared reflection-absorption spectroscopy in the potential range, −0.76 to +0.46 V vs. Hg/HgO, OH−.

TL;DR: In this paper, a different experimental approach was used to study the products of methanol adsorption, namely, to adsorb under thin layer conditions, which allowed us to compute spectra showing absolute bands.