Showing papers in "Journal of Electroanalytical Chemistry in 1970"

TL;DR: In this paper, an anodic stripping technique is described in which a very thin mercury film is formed on a polished glassy carbon substrate by adding mercuric nitrate to the sample solution and electrodepositing mercury and trace metals simultaneously.

TL;DR: In this article, a Reaktionsmechanismus for Oxidation des NH3-Molekuls im adsorbierten Zustand durch gleichzeitig adsorbierte OH-Radikale erfolgt.

TL;DR: In this paper, the first electron transfer was used to control the oxidation of hydrazine on platinum in acid solution and the rate determining step involved an adsorbed species and is inverse first order in [H + ].

TL;DR: In this article, the authors proposed an improved starting point for the prediction of voltammetric relationships, compared with the classical Fick's law approach, in that only one additional condition (representing the electrical signal applied to the cell) is needed to characterize the experiment.

TL;DR: In this paper, the effect of anions on the adsorption of hydrogen, oxygen and methanol on smooth platinum electrodes has been investigated, and the results show that anions affect the energy distribution of adsorbed hydrogen.

TL;DR: In this paper, the adsorption of ethylene glycol has been studied from 0.1 M aqueous solutions of NaF, KCl, KBr, and KI using the method of the capillary electrometer.

TL;DR: In this article, the double-layer capacitance of the liquid metal/molten alkali halide interphase is discussed and an equation for the temperature dependence of the potential at which the transition from ideally polarisable to ideally reversible behavior occurs is given.

TL;DR: In this article, the effect of the ohmic drop in the uncompensated cell resistance on the polarization curves has been analyzed and a simple correction procedure is suggested for small values of the Ohmic drop.

TL;DR: In this article, the slow step in the thiocyanate-catalyzed electro-reduction of In(III) on Hg has been identified as the surface reaction of In 3+ with two adsorbed SCN ions.

TL;DR: In this article, an equation for the electrode charge in the presence of adsorbed organic molecules is suggested and analyzed; from this Frumkin's, Hansen's and Parsons' models, discussed earlier in the literature, can be derived under particular conditions.

TL;DR: In this article, the notion of the charge has been considered for the case of an ideally polarized electrode, and a definition of the total charge is given, equally applicable to ideally polarized and reversible electrodes, as the amount of electricity to be supplied to the electrode to keep the electrode potential constant when its surface is increased by unity and the composition of the bulk phases of the system is maintained constant.

TL;DR: In this article, it was shown that the neutral cation-anion complex (PbCl3− being the single known exception to this rule) is usually the neutral ion complex and that in the course of adsorption the coordination number of the metal ion increases as it forms additional bonds with anions which are specifically adsorbed on the mercury electrode.

TL;DR: In this paper, the electrochemical behavior of gold was investigated in 0.1 M HClO4 containing 2−100×10−4 M of KCl or KBr, using triangular sweep voltammetry, steady-state current potential measurements and single pulse differential capacity data.

TL;DR: In this paper, the electrochemical oxidation of four 1,2-ene-diamines is studied on mercury and platinum electrodes in acetonitrile and benzonitrile.

TL;DR: In this article, the anodic dissolution of zinc in sodium hydroxide solutions (3×10 −2 −2 M ) has been studied using rotating disc electrodes, and it was shown that zinc dissolution in both the active and passive branches occurs with simultaneous zinc deposition.

TL;DR: In this paper, the mechanism of hydrazine oxidation in alkaline solution has been investigated at platinum and mercury, and the reaction is fourth order in OH−, where the rate determining step on mercury is at the outer Helmholtz plane and involves simultaneous transfer of two electrons and one hydroxyl ion.

TL;DR: In this article, a detailed study of the kinetics of the Eu(III)/Eu(II) electrode reaction in 1M KCl and in 1 M KI at the dropping mercury electrode, by means of impedance measurements, both at equilibrium potentials (varying c ox * / c red / * ratio, c ox + c red * =10 m M ) and at externally controlled electrode potentials, was made.

TL;DR: In this paper, it was shown that in a broad series of immonium salts, the mechanism of the reductive coupling is a purely radical one and that the reduction process offers a simple mechanistic example of electrodimerization since acidic impurities present do not influence significantly the first electron transfer process.

TL;DR: In this article, the oxidation of Br− and I− on Pt electrodes in HClO4 was found to be selectively inhibited by phenol and the initial potential for inhibition was related to the concentration of phenol in solution and to the pH.

TL;DR: In this article, a relationship between the potential of zero charge of a metal in contact with an electrolyte and the work function of the metal is derived and discussed with the help of data for aqueous and molten electrolyte systems.

TL;DR: In this article, the Mg electrode in aqueous solution using various potentiostatic techniques was studied and the steady state study indicated the presence of an oscillation phenomenon in the cathodic range of potential.

TL;DR: In this paper, microcoulometric and voltammetric measurements have been carried out in the temperature range 229°-280°C in a (Na,K)NO3 eutectic melt, pure or containing species produced in situ by massive electrolysis.

TL;DR: In this paper, the kinetics and stoichiometry of the electroreduction of PtCl62− and PtCl42− at platinum electrodes are consistent with a negtive shift in the potential ϵ2 of the outer Helmholtz plane of the ions brought about by the adsorption of chloride ions.

TL;DR: In this paper, the water solubility in the (Na,K)NO 3 eutectic melt has been determined in the temperature range 500-567 K and the process enthalpy has been found to be −8.4 kcal mol −1 at 10 −2 molal concentration level.

TL;DR: In this article, a modified form of a capillary electrometer was used to detect the presence of an ion-free layer adjacent to the mercury surface, the thickness of which appears to depend on the degree of hydration of the ions concerned.

TL;DR: In this paper, die Pb 2+ -Adsorption and Ag-Elektroden in 0.5 M KCl untersucht was found, wahrend bei hohen Potentialen ( E > 0.41 V (SCE)) eine gleichzeitige Adsorption of Pb2+ and Cl − stattfindet.

TL;DR: In this article, the equilibrium capacitance of the interface between mercury and solutions containing camphor has been measured as a function of potential with a hanging drop electrode by using a low frequency (45 Hz) a.c. bridge.