Showing papers in "Electrochimica Acta in 1963"

TL;DR: In this paper, a unified and generally applicable treatment for the individual or combined effects of double layer capacitance and faradaic process in a.c. measurements is given for the diffusion coupled with a fast or a first-order slow electrode reaction.

TL;DR: In this paper, a simple theory proposed on the basis of a transmission-line model is shown to account fully for the ac behaviour of a brush electrode, and the rate-determining process at such an electrode may conveniently be studied either by direct comparison with theoretical predictions for a pore or by using a squared representation, leading to the same plots as obtained from flat electrodes.

TL;DR: The CO2-peak of the i(E)-sweep curve (CO2peak) was observed in the case of CO2 on platinized platinum at 90°C.

TL;DR: In this article, a theory is presented for the calculation of the current/time curves at linearly varying potential, for the following reaction scheme: ==================¯¯¯¯¯¯Theoretical curves have been calculated for different values of the equilibrium constant K = kf/kb and of the parameter λ =kf + kbv.

TL;DR: In this article, the effect of increasing halide ion concentration, starting at 10 −6 M, on hydrogen adaption and oxygen adsorption was studied systematically, based on the dependence of the double layer capacitance upon the bulk concentration of halide ions in the double-layer region.

TL;DR: In this paper, it was shown that the only value that can be unambiguously determined from the dependence of the current strength on the concentration of the supporting electrolyte is the charge of the particles in the bulk of the solution that are in equilibrium with the transition state of the reaction.

TL;DR: In this article, the coverage of bright platinum electrodes with formic acid molecules, oxygen atoms, and hydrogen atoms was determined as a function of potential and bulk concentration of formic acids in 1 N HClO4 during anodic and cathodic low-speed potential sweeps in the potential range between hydrogen and oxygen evolution.

TL;DR: In this paper, a method for the calculation of adsorption pseudo-capacitance over a wide potential range, from e.m.f. decay and steady-state current/potential curves, was described and applied to the evaluation of the adhesiveness of HCOO· radicals formed in the anodic electrolysis of potassium formate in pure formic acid, as a function of electrode potential.

TL;DR: The shape of the current/potential curves and the methanol adsorption are strongly influenced on platinum metals by oxygen layers which are formed or reduced electrochemically during the sweeps in different potential ranges as discussed by the authors.

TL;DR: In this article, the adsorption of thiourea on gold has been investigated as a function of potential and concentration, using a radiotracer method, and the behavior of the system is interpreted in terms of a simple molecular model.

TL;DR: In this article, aufnahme von Strom/Spannungs-Kurven de-Ameisensaure in saurem Leitelektrolyten erhalt man an Edelmetall-Elektroden im allgemeinen drei Maxima des anodischen Stromes.

TL;DR: In this paper, the characteristic shape of periodic potentiostatic current/potential curves in 1 N HClO4 with different amounts of HCOOH is discussed on the basis of the previous adsorption measurements and of theoretical considerations.

TL;DR: In this article, the stability of α- and β-PbO2 in sulphuric acid was determined by measuring the rate of the reaction PbO 2 + H2 SO4 → PbSO 4 + H 2O + 12O2 with an ultrasensitive microvolumetric technique.

TL;DR: In this article, the distribution of tracer quantities of manganese (II), cobalt, nickel, copper, and zinc between tri-n-butyl phosphate and aqueous solutions of lithium chloride has been studied.

TL;DR: In this article, an oxide-free tin surface is anodically polarized in deaerated 0.1 M sodium borate at a c.d. of about 6μA/cm2 and the potential of the tin remains constant at first at −0·85 V vs. Ag/AgCl.

TL;DR: In this paper, the electrochemical reduction of dissolved oxygen at pre-oxidized and pre-reduced metal electrodes has been studied using the galvanostatic and chronopotentiometric methods.

TL;DR: The factors which affect the design of potentiostats are discussed with particular emphasis of the accuracy to which a desired potential can be maintained and the stabilization of the regulator and the effect of the cell design on this stabilization.

TL;DR: In this article, anodischer and kathodischer Belastung auf Platin gebildeten Sauerstoff-bzw. WasserstoffChemisorptionsschichten werden mittels Ladekurven untersucht.

TL;DR: Galvanostatic experiments have been made on iron electrodes in hydrogen-poor and hydrogen-saturated alkaline solutions at 20°C as discussed by the authors, and the mechanism of the anodic dissolution of active iron is found to be the same in alkaline as in acid solutions.

TL;DR: In this paper, the primary passive potentials for Niobium-stabilized (347) and (304) chromium-nickel stainless steels in the ternary Li2CO3Na2 CO2+O2+K 2CO3 eutectic mixture by a potentiostatic polarization technique are reported.

TL;DR: In this paper, the effect of coumarin on metal electrodeposition was studied under conditions of known rates of transport of additive to the electrode using a rotating disk electrode and the results showed maxima in levelling power as a function of the change over from transport to electrochemical control of the rate of consumption.

TL;DR: In this article, a Hochtemperatur-Brennstoffzelle with festem Elektrolyt als Experimentierzelle was hergestellt.

TL;DR: In this article, anodic and cathodic polarization curves were obtained for Armco iron sheets, previously annealed under hydrogen, in 1 N HCl saturated with hydrogen, with potential varied at 2 V/hr.

TL;DR: Tin anodically polarized in 0·1 M sodium carbonate solution shows similarity to polarization in 0¾ 1 M sodium borate only at the higher current densities, e.g. 56 μA/cm 2.

TL;DR: In this paper, a nouveau diagramme theorique tension-pH du manganese etabli anterieurement (MnOx (OH)4-2x) is presented.

TL;DR: In this paper, the electrical conductance of CoCl2 and CoBr2 was examined using spectrophotometry and transport numbers, showing that the magnetic susceptibilities of the crystalline substrates are in accord octahedral and tetrahedral symmetry for the cationic and anionic species.

TL;DR: In this article, a radiochemisch-elecktrochemische Methode fur Messungen an Amalgamelektroden entwickelt warden was gestattet, the Austauschstromdichte and the Geschwindigkeit des anodischen Teilprozesses wahrend des kurzen Anfangszeitintervalls nach dem Beginn des Austauscharvorganges zu ermitteln, wenn die Radioaktivitat der Losung als Funktion der Zeit linear

TL;DR: In this paper, an apparatus was developed whereby a single battery plate could be discharged at high rates out of the environment of the accumulator, and the transient potential of the plate was measured continuously to an accuracy of 0·01 V.