The complexation of Cm(III) with acetate is studied by time resolved laser fluorescence spectroscopy (TRLFS) as a function of ionic strength, ligand concentration, temperature and background electrolyte (NaClO4, NaCl and CaCl2 solution). The speciation of Cm(III) is determined by peak deconvolution of the emission spectra. To obtain the thermodynamic stability constants (log K) for the formatio...

The electrochemical behavior of binuclear oxovanadium complex with citric acid has been studied at a glassy carbon working electrode (GCE) in aqueous 0.1 M NaClO4 as a supporting electrolyte at pH 5.9 and 8.0. It was found that [VO(Cit.)]2.6H2O complex is irreversibly oxidized (VO) with anodic peak potential, Epa=+899 mV to +1260 mV vs. Ag/AgCl for scan rate 10 to 500 mVs. It should be mentione...

An electrochemical quartz crystal impedance system (EQCIS) was used to study the resonance behavior of an AT-cut 9-MHz piezoelectric quartz crystal (PQC) with its Au electrode partially immersed in KCl, Na2SO4 and NaClO4 aqueous solutions, respectively. An in situ determination of the immersed area and the height of the electrode was achieved by simultaneous measurements of the PQC electroacous...

Terpyridine-functionalized Ti nanospike electrodes (TiNS-SiTpy) were developed and applied to cyclic voltammetry amperometry of Ln (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb) ions mixed Eu (III) + in a 0.1 M NaClO4 electrolyte. Electrodeposition was successfully performed over TiNS-SiTpy electrodes, which fully examined by scanning electron microscopy, X-ray diffraction crystallography...

The Cyclic Voltammetry (CV) was used to investigate the electrochemical behavior of alizarin yellow R and some analogous arylazo compounds having almost the same central azo group. For this purpose, the substances chosen for the measurements are Alizarin Yellow R (AYR), Eriochrome Black T (EBT) and Sudan II (SUD II). The investigations were carried out at room temperature (298 K) in both aqueou...

The di€erential capacitance of a polycrystalline Ag electrode was measured in a NaClO4 electrolyte containing Na2S2O3 at concentrations ranging from 0.1 to 20mM and at electrode potentials ranging from )0.9 to )0.3V vs SCE. The di€erential capacitance measurements were analysed to obtain the surface coverage of speci®cally adsorbed thiosulfate (S2O 2ÿ 3 ) as a function of both electrode potenti...

The various association constants, bnm and Knm, of NaCl and NaClO4 with [12]crown-4, [15]crown-5, [18]crown-6, benzo[15]crown-5, benzo[12]crown-4, dibenzo[18]crown-6 and dinaphtho[18]crown-6 have been estimated in a mixture of dioxane/water (80/20) using a sodium ion selective electrode (ISE). The constants have been estimated using 1=ðKnm1⁄2Lo n1m21Þ5 ð1 2 nP 0Þn ð1 2 mP 0Þm=P 0; where P 0, th...

A PV was synthesized by polymerization of N,N0-bis(d-aminopropyl)-4,40-bipyridinium bromide hydrobromide (APD) and isophthaloyl chloride (ISP). The PV was completely soluble in water as well as in organic solvents. The spectroelectrochemical and EC properties of the resulting ionic self-assembled multilayers of PV/poly(2-acrylamido-2-methylpropanesulfonic acid) (PAMPs) were examined by cyclic v...