Showing papers in "Journal of Electroanalytical Chemistry in 1992"

TL;DR: In this article, the authors scrutinize the basis on which the various methods and approaches rest, in order to assess their relevance to the specific electrochemical situation and, as far as possible, their absolute reliability.

TL;DR: The application of Membrane separation in food processing is discussed in this paper, where the authors present a detailed overview of the application of the separation process in the field of food processing.

TL;DR: In this paper, the Li cycling efficiency surface chemistry and Li morphology in ethylene carbonate (EC) and propylene carbonates (PC) based electrolyte solutions were investigated and correlated surface sensitive ex situ FTIR spectroscopy, X-ray microanalysis and scanning electron microscopy were used in conjunction with standard electrochemical techniques.

TL;DR: In this article, the reduction of H2O2 on horseradish peroxidase (HRP) modified electrodes has been studied with and without an electron transfer mediator, and the amplification effect owing to the enzyme-catalyzed turnover of substrate facilitates the observation that HRP immobilized on colloidal gold and then deposited on a flat electrode surface can be reduced at a convenient rate.

TL;DR: In this paper, a comparative study of the electrocatalytic activity of metallophthalocyanines for O2 reduction in alkaline and acid media was conducted using H2Pc, VOTsPc and CrTsPc.

TL;DR: In this article, the mechanisms by which chloride ion and polyethylene glycol, two of the common additives in commercial acid copper electroplating baths, influence the cathodic deposition of copper have been investigated using potential sweep and potential step techniques as well as laser Raman spectroscopy.

TL;DR: In this paper, the shape of steady-state current distance (iT-d) curves obtained by scanning electrochemical microscopy (SECM) with a submicrometer conical-type tip is substantially different from that obtained with a microdisk tip.

TL;DR: In this article, the initial stage of electropolymerization of aniline in acidic aqueous solution was studied by cyclic voltammetry and digital simulation, and the reduction wave for the anile radical cation was observed for the first time by working at a low anilines concentration (0.05 mM) and at a scan rate of 200 V s−1.

TL;DR: In this paper, a new electrochemical approach has been made, employing the current-time transient responses when a CO adlayer is formed at a platinum electrode at various controlled potentials where CO oxidation does not take place.

TL;DR: In this article, carbon disk electrodes grafted with superficial 4-phenylacetic groups through electrochemical reduction of the corresponding diazonium salt were used for glucose oxidase covalent immobilization.

TL;DR: In this article, the film resistances of lithium electrodes immersed in propylene carbonate (PC) solution containing various salts were measured using cyclic voltammetry, and the changes in the film resistance depended on the type of electrolyte used.

TL;DR: A range of tris-(4,4′-substituted-2,2′-bipyridine) complexes have been synthesized and characterized electrochemically with respect to their ability to act as electron transfer mediators for redox enzymes, notably glucose oxidase (GOD, EC 1.1.4) of Aspergillus niger as discussed by the authors.

TL;DR: The specific adsorption of anions in acid electrolytes containing sulfuric and hydrochloric acids was found to have a strongly inhibiting effect on the rate of methanol electro-oxidation on both the (111) and (100) surfaces of platinum as discussed by the authors.

TL;DR: In this article, a thin-layer IR spectrophotometry enables θCOsat values to be extracted from the absorbance of the OCO stretch for the CO2 product.

TL;DR: In this article, a study of the dependence of the electroreduction of NO 3 − anions on a platinized platinum electrode on the solution pH, the concentration of NO 2 − ions and the adsorption of Cs+, La3+ and Cd2+ cations and Cu adatoms was performed with the aim of elucidating the mechanism of the process and, in particular, the nature of the extremal character of the rate dependence on potential.

TL;DR: In this article, polypyrrole films containing nanometer-sized platinum particles (ppy/Pt) were electrosynthesized at glassy carbon and gold electrode surfaces.

TL;DR: In this paper, it is shown that the CU(I)SCH2CH2 CH2SO3H has an important role in determining the behavior of the electroplating bath.

TL;DR: In this article, an improved Fast Implicit Finite Difference (FIFD) algorithm was proposed to solve second-order equations in a (quasi-) exact way for the square scheme.

TL;DR: In this article, the performance of a given Pt single crystal electrode in EG oxidation at a potential below 1.0 V was evaluated by three factors: (1) the ability to resist self-poisoning (AB) which describes the difficulty of EG dissociative adsorption on the electrode surface, (2) the stability of activity during potential cycling (SA) between 0.05 and 1.

TL;DR: In this article, it is shown that ohmic polarization may be insignificant (a few millivolts only) even in the total absence of supporting electrolyte, even with the presence of supporting ion electrolytes, when the product is unchanged or is an ion of the same sign as the reactant.

TL;DR: In this article, the effect of electrode treatment on current efficiency for the formation of CO2 reduction products and duration of the electrode catalytic activity under specified electrolysis conditions were studied.

TL;DR: In this article, the electrode kinetics of oxygen reduction at the platinum microcrystallite/Nafion® interface were investigated as a function of temperature and pressure, and the effects of platinum loading and Nafion impregnation on the electrode kinetic parameters were elucidated.

TL;DR: In this paper, the authors investigated the general mechanism of electrochemical intercalation of atoms into solid hosts, which is regarded as the solid-state analogue of mercury amalgam formation.

TL;DR: In this paper, the effect of different electrolytes at various pH values on the electropolymerization of aniline from aqueous solutions has been studied, and it has been found that polyaniline can be synthesized within the whole pH range investigated, provided that the proper counter-ion is present.

TL;DR: In this paper, the Selemion AMV anion exchange membrane in contact with NACl solutions was investigated and the concentration and potential profiles within the depleted unstirred layer have been calculated.

TL;DR: In situ scanning tunnelling microscopy (STM) was used to study the electrodeposition of copper onto Au(111) and Au(100) electrodes from sulphuric and perchloric acid electrolytes.

TL;DR: In this article, the double-layer correction of CO on Pt(111 was investigated in the presence of hydrogen adsorption sites in a cyclic voltammetry system with the lowest amount of surface defects.