Showing papers in "Journal of Electroanalytical Chemistry in 2008"

TL;DR: In this paper, Kornyshev et al. applied the principles that Gouy, Chapman and Stern adopted in their classic treatments of the double layer at a (metal)/(electrolyte solution) interface.

TL;DR: In this paper, the authors describe the anodic growth of self-organized TiO 2 nanotube layers in glycerol/water/ammonium fluoride electrolytes, and show that there is a significant effect of even small additions of water (0.67vol%) into the resulting geometry, and that during anodization permanently a high-field oxide layer is present on the tube bottom.

TL;DR: In this article, a novel cathode material, carbon sponge (CS), was investigated for treating wastewater containing the basic blue 3 (BB3) dye by electrochemical advanced oxidation processes, electro-Fenton.

TL;DR: In this paper, two-probe electrochemical cells were designed for proton conductivity evaluation in the X, Y and Z directions using electrochemical impedance spectroscopy (EIS).

TL;DR: In this paper, the electro-Fenton process was used to assess the decoloration of Orange II in aqueous solutions and the effect of operational parameters such as cathodic potential, oxygen mass flow rate and inert supporting electrolyte type and concentration were investigated.

TL;DR: In this paper, a novel electrochemical sensor for the detection of hydrogen peroxide (H 2 O 2 ) was proposed based on immobilizing Copper oxide nanoparticles (nano-CuO) on Nafion (Nf) membrane coated Pt electrode.

TL;DR: In this article, a new expression of the current with irreversible reaction at the substrate and a microdisk tip was proposed, which covers all usual experimental configurations (microdisks with Rg below 20, Rg characterizing the surrounding insulator thickness) and dimensionless tip-substrate distances larger than 0.1.

TL;DR: In this paper, the authors compared the performance of the two most used high oxidation power anodes (i.e., anodes with high overpotential for O2 evolution), lead dioxide (PbO2) and boron-doped diamond (BDD), for the electrochemical incineration of solutions containing the herbicide mecoprop (MCPP) by using an electrolytic flow cell.

TL;DR: In this paper, a study about the growth mechanism of ZnO nanowires electrodeposited from the reduction of dissolved molecular oxygen in zinc chloride solutions was reported, showing that the lateral growth took place only during the first growth stages.

TL;DR: In this paper, the differential capacitance at the interfaces between 1-butyl-3-methylimidazolium hexafluorophosphate, [BMIM][PF6] ionic liquid and three different electrode materials (Hg, Pt, and glassy carbon (GC)) as a function of the applied potential was obtained.

TL;DR: In this article, a hybrid advanced oxidation technique called sonoelectro-Fenton (sono-EF) was applied for the degradation of organic pollutants in aqueous medium.

TL;DR: In this paper, the authors used cyclic voltammetry (CV) with highly boron-doped diamond (BDD) electrodes to determine the free chlorine concentration.

TL;DR: Dopamine detection on gold microelectrodes was characterized and compared to P-55 carbon fiber micro electrodes of the same geometry, using background subtracted fast scan cyclic voltammetry, and selectivity to dopamine, in comparison to several other neurotransmitters and their derivatives, is described.

TL;DR: In this paper, the relationship between the morphology of anodic tungsten(VI) oxide (WO 3 ) layers and their subsequent photoelectrochemical response in 0.5 m Na 2 SO 4 supporting electrolyte was investigated.

TL;DR: In this paper, the synthesis of a monomer, 4-(2,5-di(thiophen-2-yl)-1 H -pyrrol-1-yl)benzenamine (SNS-NH 2 ) produced by the reaction of 1,4-di (2-thienyl)1, 4-butanedione and benzene-1,4diamine was reported.

TL;DR: In this paper, a carbon paste electrode with vanadium(IV) Schiff base complex (VO(SB)) was used for electrocatalytic oxidization of nitrite at low overpotential (0.87 ǫ versus Ag/AgCl), and treatment of the voltammetric data showed that it was a purely diffusion-controlled reaction involving one electron in the rate determining step.

TL;DR: Pd nanoparticles were immobilized on Au disk electrode and kinetics of hydrogen peroxide electroreduction on the Pd electrode in 01-M H2SO4 solution was investigated using a rotating disk electrode method as discussed by the authors.

TL;DR: In this article, the surface morphology and particle agglomeration were investigated using scanning electron microscopy, and the TEM image showed a compact coating layer on the surface of the core materials that had average thickness of about 50nm.

TL;DR: In this paper, the average current efficiency of hydrogen evolution and the scanning electron microscopic (SEM) analysis of the copper deposits morphology was examined by the determination of the average currents and by the analysis of copper dendrites.

TL;DR: In this paper, the performance of different carbon nanotube epoxy composites was characterized and compared with reference materials such as analog graphite composites and HOPG (basal and edge).

TL;DR: In this article, a new kind of modified electrode fabricated by attaching nickel hexacyanoferrate (NiHCF) to the surface of an amine-functionalized graphite is proposed.

TL;DR: In this article, Ni-P-TiO 2 nanocomposite coatings with various contents of TiO 2 nano-particulates were prepared by electroless technique from Ni−P plating bath containing TiO2 powder.

TL;DR: In this paper, a new method for measuring the mass specific capacitance of conducting polymers using the electrochemical quartz crystal microbalance (EQCM) is presented, which can be done by using one thin deposit, calculating the capacitance and dividing by the deposition mass, or conversion of the capacity per deposition charge to capacitance per mass using Faraday's Law and the EQCM data (for thin deposits).

TL;DR: In this article, a simple method of reducing the gold oxide layer formed by the extensive oxidative treatments commonly utilised for surface cleaning is presented, which consists of an electrochemical reduction in the same electrolyte as used for electrochemical polishing and is demonstrated for both saturated alkyl and ethylene glycol thiol SAMs.

TL;DR: In this article, the use of Prussian blue film modified-palladized aluminum electrode (PB/Pd-Al) prepared by a simple and rapid electroless method for the determination of codeine (CO) and morphine (MO) is described.

TL;DR: In this paper, the oxidation of hydrogen was studied at an activated platinum micro-electrode by cyclic voltammetry in the following ionic liquids: [C2mim][NTf2], [C4mim]Cl, [N 6, 2, 2,2, 2 ] + = n -hexyltriethylammonium, [P 14, 6, 6, 6,6, 6 ] += tris (n -hexyl-3 -methylimidazolium), [P14,6,

TL;DR: In this paper, the Pt-SiO 2 composite particles of ratio 1:1 and 2:1 showed superior performance towards oxygen reduction reaction (ORR) as these composite particles formed an interconnected particle-network and maximize the available electrochemically active area.

TL;DR: In this paper, a fast and cost effective method to measure the effective diffusivity of a gas diffusion layer (GDL) is presented, which is used to characterize the contribution of the GDLs to the overall electrochemical characteristics of a MEA.

TL;DR: In this article, a new electrochemical sensor for the detection of redox active species like H2S in aqueous solution was developed, which uses redox cycling of a redox mediator at electrodes in close proximity (thin-layer cell) to achieve high current signals and high S/N ratios.

TL;DR: In this article, As 3+ and As 5+ species were simultaneously deposited at the electrode surface, and the reproducibility was shown for stripping voltammetry of As 3+, As 5+, and As 6+ with an RSD (n ǫ=8) of 7.5% and 8.4%, respectively.