Showing papers in "Journal of Electroanalytical Chemistry in 1999"

TL;DR: A status report on development of the direct methanol fuel cell (DMFC) and relevant fundamental and applied electrochemistry is the objective of as discussed by the authors, where emphasis is put on strategies and approaches rather than on individual results.

TL;DR: In this article, the influence of alloying elements and the potential on the corrosion resistance of Ti and other Ti-based biomedical implant alloys under simulated physiological conditions is presented, and the experimental results were compared with those obtained by potentiostatic and potentiodynamic techniques.

TL;DR: In this paper, a general description of the electrochemical behavior of Mg electrodes in different types of polar aprotic systems was provided, including acetonitrile (AN), propylene carbonate (PC), and tetrahydrofuran (THF).

TL;DR: In this paper, the same authors showed that strongly adsorbed Br − can simultaneously suppress both the adsorption of O 2 molecule and the formation of pairs of platinum sites needed for the breaking of the O-O bond.

TL;DR: In this paper, a significant enhancement of electrocatalytic activity of Pt by alloying with Fe, and found a maximum activity at ca. 50% Fe content, which results in 25 times higher activity than pure Pt activity.

TL;DR: In this paper, a novel glucose ∣ O2 biofuel cell element was assembled by the engineering of layered bioelectrocatalytic electrodes, where the anode consists of a surface reconstituted glucose oxidase monolayer, whereas the cathode is presented by the reconstitiuted cytochrome c/cytochrome oxidase couple.

TL;DR: In this article, a macrohomogeneous model was used to calculate the small-signal dynamic response of the cathode catalyst layer in polymer electrolyte fuel cells and the analytical expressions derived reveal relationships between the structure of the layer and impedance spectra.

TL;DR: In this article, the redox mediator 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonate) was used to reduce dioxygen to water using the fungal enzyme, laccase, as the catalyst for homogeneous electron transfer and the results obtained when this chemistry was used in the cathode compartment of a biofuel cell.

TL;DR: In this paper, the authors investigated the O2 reduction rate of FeTMPP-Cl/BP adsorbed on the Black Pearls carbon and heat-treated at temperatures from 200 to 1000°C.

TL;DR: In this article, the modified nickel hydroxide/glassy carbon electrode (MNGC) showed a stable voltammetric response even when it was stored under dry conditions.

TL;DR: In this paper, a new general equation for the current transient which is based on elements of both the existing theories is presented, and theoretical predictions of this equation and their relevance for the analysis of experimental transients are discussed and compared with experimental observations.

TL;DR: In this article, the oxidation of ethanol in aqueous HClO 4 was studied on co-electrodeposited PtRu electrodes in a temperature range of 5-40°C by means of differential electrochemical mass spectrometry (DEMS).

TL;DR: Oxygen-terminated diamond electrodes were prepared by exposing as-grown diamond thin films to oxygen plasma, and the apparent surface conductivity was not significantly changed after the oxygen plasma treatment as mentioned in this paper.

TL;DR: In this paper, a generalized boundary condition in the solution of Fick's law for a small ac perturbation was developed for diagnostic applications and treatment of cases in which systematic deviations from the standard models for spatially restricted diffusion impedances are found.

TL;DR: In this paper, the electrodeposition mechanism of 3,4,ethylenedioxythiophene (EDOT) was studied according to electrocrystallization theory and the results indicated the good stability of the thin film of PEDOT on the electrode surface.

TL;DR: In this paper, the effect of sodium dodecylsulfate (SDS) on the copper corrosion in 0.5 mol dm−3 H2SO4 solution has been studied by electrochemical and in situ Raman spectroscopic measurements.

TL;DR: In this paper, the interfacial properties of gold nanocrystals deposited electrochemically onto glassy carbon substrates are characterized, and the results of these studies indicate that the overall surface area of gold as well as nanocrystal size, density, and surface texture, can be controlled by variation of deposition conditions.

TL;DR: In this paper, the electrocatalytic oxidation of hydrazine has been studied on a glassy carbon electrode modified by electrodeposition of chlorogenic acid (CGA), using cyclic voltammetry, chronoamperometry and rotating disk voltameters as diagnostic techniques.

TL;DR: In this paper, a comprehensive classification scheme of oscillatory electrochemical systems with respect to the mechanistic basis of their kinetic instability is proposed, and four principal oscillator categories are distinguished depending on the role of the potential drop across the electrode-∣-electrolyte interface (double layer potential) and of the chemical species involved.

TL;DR: In this article, the authors investigated the oxygen reduction reaction at the interface between a 50 μm radius platinum disk electrode and two solid polymer electrolyte membranes (Nafion® 117 and BAM® 407) over a range of temperatures (303 −343 K) and oxygen pressures (2 −5 atm absolute), at 100% relative humidity, using a solid-state electrochemical cell.

TL;DR: In this article, an Au(111) electrode coated with a self-assembled monolayer of 3-mercaptopropionic acid (MPA) has been investigated by square-wave voltammetry for electrochemical detection of dopamine in the presence of ascorbic acid and characterized by in situ STM.

TL;DR: In this article, cyclic voltammetry was applied for the first studies to detect 2,4,6-trinitrotoluene (TNT) electrochemically in the gaseous phase.

TL;DR: In this article, an analysis of the alternating current passage across a thin film containing mobile charge carriers of two types, which for the sake of specificity are referred to as "electrons" and "counterions", is presented.

TL;DR: A chemically modified electrode composed of mixed hydroxide and oxyhydroxide nickel film (6-8 nmol cm −2 ) was characterized by cyclic voltammetry and XPS techniques as mentioned in this paper.

TL;DR: Chrzanowski et al. as mentioned in this paper showed that at a typical potential of interest to methanol fuel cell technology (ca. 0.3 V vs. RHE), methanoline oxidation reaction occurs at the surface which is covered by the chemisorbed CO at high coverage.

TL;DR: In this article, the electrochemical immobilization of glucose oxidase (GOD) within polypyrrole films electrogenerated on mesoporous TiO 2 films is described.

TL;DR: In this paper, the interaction of primary water dissociation products H, O and OH with various (111) metal surfaces is studied by density functional theory (DFT) calculations using clusters.

TL;DR: The specific anion adsorption of chloride and sulfate on Cu(111) from acidic aqueous electrolytes has been studied using scanning tunneling microscopy (STM) and cyclic voltammetry as discussed by the authors.

TL;DR: In this article, a model of the methanol mass transport processes is presented which is used to predict the effective methanolate concentration at the catalyst surface and thereby the anode polarisation.