Showing papers in "Journal of Electroanalytical Chemistry in 1996"

TL;DR: Typical cyclic voltammograms at the three low-index faces of gold are given and discussed comparatively in this paper, where the influences of various experimental conditions or parameters, e.g. temperature, concentration and nature of the electrolyte, ohmic potential drop, potential limits, etc.

TL;DR: In this paper, a method for the production of gold nanoparticles with narrow size distributions by reduction of tetrachloroaurate solutions in the presence of thiol-containing organic compounds which self-assemble on the gold surface is described.

TL;DR: In this article, the authors explore the origins of the capacitance dispersion observed for single crystal electrodes, voltammetric and impedance measurements on Au(l 11) and Au(100), in the absence and the presence of specifically adsorbed anions, mostly Br−, have been carried out.

TL;DR: In this paper, the phase information of thin films of polyethylene oxide (PEO) + lithium trifluoromethanesulfonimide (LiN(CF3SO2)2, LiTFSI) mixtures have been obtained for ethylene oxide Li ratios from 64:1 to 2:1.

TL;DR: In this paper, the potential dependent bands near 3100 and 1620 cm−1 correspond to the O-H stretching and H-O-H in-plane deformation of adsorbed water molecules.

TL;DR: In this paper, the average and local conductance of Nafion® 117 under different degrees of humidification was examined. But the authors focused on the ion transport characteristics of me membrane and did not consider the role of water content in the transport of H+ ions across the membrane in fuel cells.

TL;DR: In this article, the authors investigated CO adsorption and electro-oxidation on a Pt(111) electrode modified by Ru deposition by using IR spectroscopy and found that the IR spectra in the region of the CO stretching vibration exhibit distinct bands which can be assigned to CO on the Pt substrate (CO|Pt) and on Ru islands (CO |Ru), which is in contrast with IR studies of Pt  Ru alloy electrodes where only a single vibrational band of adsorbed CO is observed.

TL;DR: In this paper, the physical and chemical properties of the Au(hkl) surface were investigated by rotating disk electrode and rotating disk ring electrode techniques, with a goal to correlate the physicochemical properties of electrode surface with its catalytic activity.

TL;DR: In this article, the reduction of dioxygen in base was examined on several carbon electrode surfaces, particularly polished and modified glassy carbon (GC). Electrochemical pretreatment, fracturing, and vacuum heat treatment shifted the O2HO−2 reduction peak positive, while adsorption of several covalent and physisorbed organic compounds shifted it negative.

TL;DR: In this paper, the effect of foreign ions (SO2−4, CO2−3, OH−) on the development of persistent electrochromism and stability of NiO films was established and discussed in detail.

TL;DR: In this paper, a preferential incorporation of the neurotransmitters dopamine and epinephrine, while rejecting the anionic ascorbate species, was demonstrated using cyclic voltammetric, batch amperometric and flow-injection voltammmetric experiments.

TL;DR: In this article, the magnitude of the total rate constant of an electrochemical reaction at small overpotentials was shown to depend on the exponentials of the distance between the electron donor and acceptor, the reorganization energy, and the formal potential of the reaction.

TL;DR: In this paper, the first oxidative intermediates have been characterised by their UV spectra and oxidation potentials, and the results have been compared with the behaviour of 4-coumaric acid 2H2 and ferulic acid 3H2.

TL;DR: A chemically modified microelectrode has been prepared successfully by means of electrodepositing nickel hexacyanoferrate(II-III) on a microdisk platinum electrode.

TL;DR: In this article, the Nafion® 117 membrane in H 2 O 2 and H 2 air polymer electrolyte fuel cells (PEFCs) has been measured in situ using fast current pulses.

TL;DR: In this paper, the electrodeposition of PANi films on mild steel from aqueous oxalic acid is reported, and PANi-coated iron samples exhibit very good protection against corrosion and are much more effective than polypyrrole coated ones.

TL;DR: In this paper, it is shown that the particular condition for which the system is resonant with the perturbing signal implies the existence of a so-called Hopf bifurcation to sustained spontaneous oscillations in the time domain.

TL;DR: In this paper, the roughness of thin thin films of cobalt and nickel was determined by cyclic voltammetry and the stationary I-E curves were representative of the good correlation between the magnitude of the currents obtained and roughness factors.

TL;DR: The catalytic influence of polyaniline (PANI) film, prepared from sulphuric and perchloric acid solutions, on hydroquinone/benzoquinone ( HQ BQ ) and Fe 2+ 3+ reactions has been investigated in this paper.

TL;DR: In this paper, the modification of glassy carbon and gold electrodes with DNA by adsorption or covalent immobilization in a mono- or submonolayer has been investigated using the couple Co(bpy)3+2+3 as an indicator.

TL;DR: In this paper, clean and well-ordered Au(111) electrodes were prepared in a UHV chamber, transferred to an electrochemical cell by a closed-transfer system and immersed in 0.1 M HClO 4 at various potentials.

TL;DR: In this article, a modified graphite electrode coated with a poly(4-vinylpyridine) (PVP) membrane containing cobalt phthalocyanine (CoPc) was used for catalytic CO2 reduction.

TL;DR: In this paper, a model of the lattice contraction and expansion of the Prussian blue lattice was proposed to explain the irreversible binding of one of the Rb+ and Tl+ cations.

TL;DR: In this article, the kinetics of methanol electro-oxidation on carbon-supported particulate Pt and Pt + Ru catalysts are studied on PTFE-bonded electrodes made of these materials.

TL;DR: The electrochemical behavior of boron-doped diamond films has been investigated in a number of neutral and alkaline solutions with and without nitrate ions as discussed by the authors, and it was found that water oxidation and reduction appear at much larger polarizations for diamond electrodes, as compared with platinum and platinized platinum electrodes.

TL;DR: In this article, the electro-oxidation of methanol, formaldehyde and formic acid was studied at highly dispersed Pt-based electrodes and the method of preparation appeared to be a key point, particularly for PtSn catalysts.

TL;DR: In this article, the formation, structure and stability of cytosine adlayers on Au(111) in aqueous solution has been studied by currentpotential, capacitance-potential and in-situ scanning tunneling microscopy (STM) measurements.

TL;DR: In this article, the dependence of the kinetics of the charge transfer on various crystal-plane geometries of single-crystal surfaces of Pt through evaluation of the Rct, leading to the deposition of H and how this process depends on the orientation and two-dimensional structure of the surface.

TL;DR: In this article, a comparative study of methanol oxidation on a Pt(100) surface was carried out in bicarbonate, carbonate and different pH values of sodium hydroxide solutions.