Showing papers in "Journal of Electroanalytical Chemistry in 2009"

TL;DR: Graphene-ZnO composite film was synthesized for its potential application in supercapacitors as discussed by the authors, which exhibited an enhanced capacitive behavior with better reversible charging/discharging ability and higher capacitance values.

TL;DR: In this paper, single crystal and vertically aligned cobalt oxide (Co3O4) nanowalls were synthesized by directly heating Co foil on a hot plate under ambient conditions.

TL;DR: A stable modified glassy carbon electrode based on the poly 3-(5-chloro-2-hydroxyphenylazo)-4,5-dihydroxynaphthalene-2,7-disulfonic acid (CDDA) film was prepared by electrochemical polymerization technique to investigate its electrochemical behavior by cyclic voltammetry as discussed by the authors.

TL;DR: In this article, the electrochemical degradation of the triphenylmethane dye Methyl Violet (MV) in acidic and neutral aqueous solutions was comparatively studied in an undivided electrolytic cell containing either a boron-doped diamond (BDD) or Pt anode and a stainless steel cathode under galvanostatic conditions.

TL;DR: In this article, a simple and high sensitive electroananlytical method for determination of bisphenol A (BPA) by using cobalt phthalocyanine (CoPc) modified carbon paste electrode (CPE) was presented.

TL;DR: In this article, the application of high surface area activated carbon (AC) as a convenient quasi-reference electrode (QRE) in non-aqueous electrolyte solutions is evaluated.

TL;DR: In this paper, Cahan et al. analyzed the electrochemical impedance spectra of the adjacent transition metals Ni, Co and Fe during oxygen evolution in 1.0 M NaOH and found that Fe exhibits the most general impedance response with the other anodes taking the form of limiting cases.

TL;DR: In this article, the selective, sensitive and simultaneous determination of dopamine (DA), ascorbic acid (AA) and uric acid(UA) on ordered mesoporous carbon (OMC)/Nafion composite film was reported.

TL;DR: In this paper, the effect of scan rate, pH, temperature, different electrolytes and surfactants on electrochemical behavior of gemcitabine hydrochloride (GMB) was investigated by voltammetric techniques.

TL;DR: In this article, a modified carbon-paste electrode was employed for the simultaneous determination of dopamine (DA) and ascorbic acid (AA) with good selectivity and high sensitivity.

TL;DR: In this paper, an artificial neural networks (ANN) model was developed to predict the performance of the decoloration efficiency by peroxi-coagulation process based on experimental data.

TL;DR: In this article, the β-cyclodextrin and multi-wall CNTs have been prepared and deposited on the glassy carbon electrodes to form the βCyDex/MWNT modified electrodes for the simultaneous determination of guanine (G), adenine (A), and thymine (T).

TL;DR: In this article, a nanoporous gold particles modified titanium electrode (Au/Ti) was prepared by using a hydrothermal method, and the electrocatalytic activity of the Au/Ti towards hydrazine oxidation in 1M NaOH solution was assessed utilizing cyclic voltammetry (CV), linear scanning voltammetric (LSV) and electrochemical impedance spectroscopy (EIS).

TL;DR: In this article, the influence of sulfur dioxide, glutathione and ascorbic acid on the cyclic voltammograms of four representative wine polyphenols (catechin, caffeic acid, rutin and quercetin) and five different wines was investigated using a glassy carbon electrode.

TL;DR: In this paper, the analytical performance of solid-contact K+-ISEs, the influence of dissolved O2 and CO2 on the potential of the electrodes, and the formation of the interfacial aqueous film were investigated.

TL;DR: In this paper, the oxygen reduction reaction (ORR) on Pd-Cu catalyst has been studied in acidic media, where the palladium alloys were prepared by coating glassy carbon substrates using a R-F magnetron sputtering equipment with a palladium and a copper wafer as targets.

TL;DR: In this paper, the electrocatalytic oxidation of formaldehyde on palladium nanoparticles electrodeposited on carbon ionic liquid electrode (Pd-CILE) has been investigated.

TL;DR: In this paper, a carbon paste electrode was modified by electropolymerisation of glycine in 0.2 mM acetate buffer solution (ABS) at pH 5.0.

TL;DR: In this article, a simple design of growing Cu nanobelt (NB) electrode for glucose sensing is presented, where the average width, thickness and length of the NBs were about 50nm, 20nm and several tens of micrometers, respectively.

TL;DR: In this paper, a new type of the modified electrodes is prepared in a layer-by-layer process by using multi-walled carbon nanotube (MWCNT) and poly-pyrrole.

TL;DR: A series of new electrofluorescent switches was prepared using electroactive fluorescent tetrazines, an original family of molecules featuring both highly stable reduced anion-radicals and fluorescence in the neutral state as discussed by the authors.

TL;DR: In this paper, the electrochemical oxidation of gabapentin has been investigated for the first time by cyclic, linear sweep and differential-pulse voltammetry at different pH at gold electrode.

TL;DR: The fabricated biosensor developed based on immobilization of acetylcholinasterase on gold nanoparticles and silk fibroin modified platinum electrode had good reproducibility and acceptable stability and is a promising new tool for pesticide analysis.

TL;DR: In this article, the electrochemical and mass-transport properties of a redox-active ionic liquid, 1-(ferrocenylmethyl)-3-methylimidazolium bis(trifluoromethanesulfonyl)amide (FcEmiTFSI), were investigated for the pure compound and for solutions in acetonitrile (ACN) and in a room-temperature ionic fluid, 1-ethyl-3methyloridazolate (MTHI)-imide (EmI-imide

TL;DR: In this paper, a high performance glucose biosensor based on the immobilization of glucose oxidase (GOx) with chitosan onto TiO 2 nanotube arrays modified by Prussian blue (PB) and Au was reported.

TL;DR: Pt-Sn electrocatalysts of different compositions were prepared and dispersed on carbon Vulcan XC-72 using the Pechini-Adams method as mentioned in this paper, which showed that the presence of Sn greatly enhances the activity of Pt towards the electrooxidation of ethanol and contributes to reduce the amount of noble metal in the anode of direct alcohol fuel cells.

TL;DR: In this article, a simple, label-free and regenerative method was proposed to study the interaction between aptamer and small molecule by using methylene blue (MB+) as an electrochemical indicator.

TL;DR: In this paper, the effect of electric field strength on tube length was studied under selected field strengths for prolonged anodizing durations for dye-sensitized solar cells, and the results indicated what essentially affects the tube length is the field strength which influences ion migration in electrolyte and ion transport in anodic barrier layer.

TL;DR: In this article, a sinusoidal perturbation of high amplitude is applied to the fuel cell current and the resulting voltage is analysed using the concept of higher order frequency response functions.

TL;DR: In this paper, a self-assembling of a sol-gel network and silver nanoparticles was developed for cyanide detection, which exhibited high sensitivity, good reproducibility, and long-term stability.