Journal of electroanalytical chemistry Impact Factor & Information

Publisher: Elsevier

Current impact factor: 2.73

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 2.729
2013 Impact Factor 2.871
2012 Impact Factor 2.672
2011 Impact Factor 2.905
2010 Impact Factor 2.732
2009 Impact Factor 2.338
2008 Impact Factor 2.484
1996 Impact Factor 1.832
1995 Impact Factor 1.735
1994 Impact Factor 2.02
1993 Impact Factor 1.697
1992 Impact Factor 2.202

Impact factor over time

Impact factor

Additional details

5-year impact 2.79
Cited half-life >10.0
Immediacy index 0.63
Eigenfactor 0.02
Article influence 0.57
ISSN 1572-6657

Publisher details


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    • Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months
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    • Author's post-print must be released with a Creative Commons Attribution Non-Commercial No Derivatives License
    • Publisher last reviewed on 03/06/2015
  • Classification

Publications in this journal

  • Journal of electroanalytical chemistry 11/2015; DOI:10.1016/j.jelechem.2015.10.033
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    ABSTRACT: The electrochemical oxidation mechanism of the anticancer drug and kinases inhibitor dasatinib was studied by cyclic, differential pulse and square wave voltammetry using a glassy carbon electrode. Dasatinib undergoes irreversible, pH-dependent oxidation in a cascade mechanism. For electrolyte with pH < 9.0 two peaks corresponding to consecutive charge transfer reactions that involve the transfer of the same number of electrons and protons were observed. For electrolytes with pH > 9.0 only one oxidation peak was observed. The UV-Vis spectra of dasatinib were recorded as a function of pH. The thiazole moiety was identified as the electroactive centre through comparative studies with compounds with similar structures and an oxidation mechanism of dasatinib was proposed. The analytical determination of dasatinib was carried out by differential pulse voltammetry in buffer and serum samples. Adequate recovery results in spiked serum samples were obtained and the matrix effect, serum dilution and dasatinib concentration were evaluated.
    Journal of electroanalytical chemistry 09/2015; 752:47-53. DOI:10.1016/j.jelechem.2015.06.006
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    ABSTRACT: Electrodeposited WO3 thin films were prepared on the W, Ti, and Nb metal substrates in strongly acidic solution containing a tungsten precursor of (0.025 M sodium tungstate dihydrate powder (Na2WO4·2H2O)) and by varying the applied potential. The applied potential determined the thickness and crystallite size of the deposited WO3 thin films, irrespective of the metal substrate. The thickness and crystallite size of the films, as well as the total consumed electric charge (Q), increased as the applied potential was increased from -0.27 to -0.47 V. Conversely, the photoelectrochemical (PEC) activity declined as the deposition potential increased; the optimal performance was achieved at a deposition potential of -0.27 V for all metal substrates. This potential generated a porous WO3 film or a very thin WO3 layer composed of small nanoparticles, both of which were favorable for electrolyte penetration leading to enhanced charge transport/transfer behavior and providing a large contact area for the electrolyte. Furthermore, the PEC performance of WO3 on the W substrate was higher than those on the Ti and Nb substrates because of the homogenous composition of the W substrate that resulted in the least lattice disturbance. Thus, the maximum photocurrent density of 1.68 mA/cm2 at 1.5 V (vs. saturated Ag/AgCl) with an IPCE of 31% at 330 nm was obtained with the electrodeposited WO3 film grown at a deposition potential of -0.27 V on the W substrate. The charge-transport and charge-transfer behavior of the electrodeposited WO3 film were respectively discussed based on linear sweep voltammograms and electrochemical impedance spectroscopy.
    Journal of electroanalytical chemistry 09/2015; 752:25-32. DOI:10.1016/j.jelechem.2015.05.031
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    ABSTRACT: A simple and efficient approach was developed to fabricate an amperometric sensor for hydrogen peroxide (H2O2) determination based on one-pot synthesis of highly dispersed PtAu nanoparticles–CTAB–graphene nanocomposites. In this study, graphene oxide was first functionalized with a cationic surfactant, cetyl trimethyl ammonium bromide (CTAB); then PtAu nanoparticles (NPs) were deposited on graphene (GR) via a simple chemical co-reduction method. A large amounts of highly dispersed bimetallic PtAu nanoparticles could be well loaded on the surface of the graphene, as revealed by transmission electron microscopy (TEM). In addition, PtAuNPs–CTAB–GR nanocomposites were also characterized by electrochemical methods including cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The experimental results demonstrated that constructed sensor exhibited good catalytic activity toward H2O2, and obtained a wide linear range from 5.0 × 10−9 to 4.8 × 10−6 mol/L with a limit of detection (LOD) of 1.7 × 10−9 mol/L (S/N = 3). Moreover, it could also be applied to real samples analysis. The excellent performance of this H2O2 sensor could be ascribed to graphene being used as effective load matrix for the deposition of PtAuNPs and synergistic effect of bimetallic PtAuNPs and graphene nanomaterials.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.027
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    ABSTRACT: Carbon-coated Li2ZnTi3O8 composites with nano particle size and excellent rate performance are synthesized via a facile solid-state reaction route using alginic acid as carbon precursor. The results of characterization indicate that amorphous carbon layer is homogeneously coated on the surface of Li2ZnTi3O8 particles without any crystal structure change. The carbon-coated Li2ZnTi3O8 composite with 10 wt.% alginic acid (Li2ZnTi3O8/C-10) shows the largest initial discharge specific capacity of 242.5, 190.0, 165.2 and 91.2 mA h g−1 can be obtained after 100 cycles at 0.1, 0.5, 1.0 and 2.0 A g−1, respectively. EIS reveals that Li2ZnTi3O8/C-10 exhibits higher electronic conductivity and faster lithium ion diffusivity. The significant improvements of electrochemical performance are attributed to the carbon layer on the outer surface of Li2ZnTi3O8 active particles, which can restrain the growth of particles, enhance electronic conductivity and suppress electrolyte decomposition.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.033
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    ABSTRACT: A new composite film based on K28Li5H7 [P8W48O184]·92H2O (P8W48) and Cu@AgNPs was fabricated by the layer-by-layer assembly method and characterized by UV–vis spectroscopy, X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The electrochemical properties of the composite film were investigated by cyclic voltammetry, electrochemical impedance spectroscopy and current–time response techniques. Comparative experiments revealed that the electrocatalytic efficiency of the composite film toward reduction of iodate was significantly enhanced by the combined effects of P8W48 and Cu@AgNPs. The proposed sensor based on this composite film exhibited a high sensitivity of 5.52 A/M, a broad linear range from 1.0 × 10−7 to 3.0 × 10−4 M and a low detection limit of 4.0 × 10−8 M (S/N = 3) for detection of iodate. The sensor was also explored to detect iodate in the commercial salt samples, and the experimental results showed that the recovery was within allowable error range.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.039
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    ABSTRACT: The electrochemical oxidation of the model sulfur-containing compound dibenzothiophene (DBT) was analyzed in acetonitrile with carbon electrodes in order to obtain mechanistic information about the products formed. Cyclic voltammetry of DBT on a glassy carbon electrode showed three chemically irreversible anodic peaks. The first and second peaks involve a global transfer of one electron which allows the formation of sulfoxide and sulfone derivatives, respectively, as well as the release of one equivalent of protons. When water was added to the acetonitrile solution, the voltammetric pattern was maintained; however, the global mechanism giving rise to the sulfoxide and sulfone derivatives was modified to two electrons with the release of two equivalents of protons. The proton formation was confirmed by cyclic voltammetry with acetate ions as a proton probe, and the products dibenzothiophene sulfoxide and dibenzothiophene sulfone were prepared by constant-potential electrolysis and characterized by HPLC–MS-TOF and 1H and 13C NMR experiments. The analysis of the variation of the peak potential and half-peak width with the scan rate was used to establish the relevance of water on the reaction mechanism, which changes from an ECCCC to an ECCEC pathway when water is present in excess.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.025
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    ABSTRACT: Room temperature ionic liquids (RTILs) played an important role in the electrochemistry because of the advantageous properties. Due to the different electrochemical behavior from the dilute solution, it was still remained a significant challenge to obtain the insight into the interfacial structure. Although the spectroelectrochemistry offered the rich spectroscopic information for obtaining the interfacial structure at molecular level, the lack of the spatial information of those techniques at nano/subnanometer scale led the difficulties in the determination of the spatial structure of double layer. Here, the surface enhanced Raman spectroscopy (SERS) Stark tuning rates of CN stretching frequency were employed to determine the electric double layer structure on Au electrode, and probes with different lengths, involving cyanide ion (CN−), thiocyanate (SCN−), 3-aminopropanenitrile (3-APN) and 6-aminohexanenitrile (6-AHN), were used as rulers to measure the spatial structure of double layer. In this approach, SERS combined with electrochemical control was performed to distinguish the orientation of surface species and detect the vibrational frequency of the nitrile stretching mode. For shorter probes (such as CN− and SCN−), the nitrile group were located in the electric double layer region, resulting in measureable Stark tuning rates (dνCN/dE), while for longer probe molecules (such as 3-APN and 6-AHN), the interfacial potential completely decayed before reaching the nitrile group location, resulting in the negligible Stark tuning rates. The vibrational Stark tuning rates suggested that the potential drop occurred over a range of 5–6 Å from the metal surface into the bulk phase of ionic liquids. The results demonstrated that the overall potential mostly dropped across the first layer and only a small fraction across the second layer. The preliminary results allowed us to obtain an insight into the physical picture of the interfacial structure of RTILs/metal system.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.041
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    ABSTRACT: This article mainly focuses on the local and global admittances of a disk electrode embedded in an infinite insulating plane, in the absence of faradaic reaction, so-called blocking disk electrode. The mathematical formalism involved starts from Newman’s model for the distribution of potential in the electrolytic solution surrounding the electrode, together with non-uniform current distribution on the disk. Computation is performed in this work using symbolic and numerical procedures within a computer algebra system in order to produce highly accurate admittance/impedance data. The local and global admittances of blocking disk electrode are investigated more especially, with regards to high- and low-frequency behaviors. Computed data are compared, first, to the effective values of resistance and capacitance tabulated by Newman, next, to the apparent constant-phase-element behavior of electrode impedance predicted by Huang et al. at high frequencies, and, finally, to the impedance results recently obtained by Tjelta and Sunde. The accuracy of admittance/impedance data is improved in this work, mainly at high frequencies. Finally, interfacial and ohmic contributions to the global impedance of disk electrode are computed and discussed. Additional information about the admittance/impedance of disk electrode is reported in the supplementary material associated with this article.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.016
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    ABSTRACT: Several molecular imprinted polymer (MIP) membranes for Azithromycin (Azin) coated on graphite electrodes were constructed based on PVC matrix. The Azin-imprinted polymers (MIP) were prepared by thermal polymerization using acrylic acid (AA) and 2-vinyl pyridine (VPY) as monomers, ethylene glycol dimethacrylate (EGDMA) as a cross linker in the presence of benzoyl peroxide (BPO) as an initiator. Two plasticizers di-butyl phosphate (DBP) and di-octyl phthalate (DOP) were used in this study. Electrode parameters such as Nernstian slopes, concentrations, pH and interferences were studied. The results of Azin-MIP electrodes, which based on AA and VPY as monomers with DBP plasticizer, show fully Nernstian slopes. For MIP electrodes using DOP plasticizer the slopes were 49.1 and 51.3 mV/decade, respectively. Excellent detection limits for the electrodes around 10−7 M were obtained. Life times of MIP were more than four months. The pH range for the electrodes from 3.0 to 8.0 shows no change in the electrode response and a response time around 30 s was noticed for low concentrations of Azin. The effect of some cations and neutral species interferences on electrode response was also studied. Standard addition method using graphite MIP electrode was applied for Azin determination in commercial tablets and capsules of Azin drug. The results obtained by the MIP electrode were compared with the official spectrophotometric method. The binding capacity between polymer of AA as a monomer and Azin as a template was also investigated.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.030
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    ABSTRACT: In this paper we describe the electro-oxidation of methyl-substituted aromatic compounds to the corresponding aldehydes in aqueous imidazole ionic liquid (IL) solutions and using a platinum electrode. The electro-oxidative behavior of p-methoxy toluene (p-MT) was studied in the ILs using cyclic voltammetry (CV), and the oxidation was shown to be an irreversible process. Increasing the acid strength of the ILs led to further oxidation to the corresponding acid. The controlled potential electrolysis of methyl-substituted aromatic compounds was also investigated under the optimized reaction conditions and the products were detected by NMR, IR and gas chromatography/mass spectrometry (GC/MS). The method represents a promising way to prepare aromatic aldehydes. In order to detect intermediates, in-situ Fourier transform infrared spectroscopy (in-situ FTIR) data was acquired during the oxidation processes. The results further confirmed that the procedure provides a selective approach to the synthesis of aromatic aldehydes. The selectivity toward formation of the corresponding aromatic aldehydes was 21–92% when using the optimized reaction conditions. Excellent electrochemical stability of the ILs was demonstrated and they could be recycled at least 35 times.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.034
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    ABSTRACT: Here we consider the case where the enzyme reacts with an electroinactive substrate to produce an electroactive product which is quickly oxidized or reduced at the electrode/film interface. This model is based on the system of non-linear reaction diffusion equations containing a nonlinear term related to the Michaelis Menten kinetic of the enzymatic reaction. In this paper the powerful analytical method, called the recent approach of Homotopy analysis method is applied to solve the non-linear reaction diffusion equations in amperometric biosensors. A simple and closed-form of analytical expression for concentrations of substrate, product and corresponding current response in the case of an enzyme immobilized into a planar film onto an electrode have been derived. The effect of various parameters on current density is discussed. Numerical simulation (Matlab) for the concentration profile for non-steady state condition was carried out and compared with the analytical results. A satisfactory agreement is noted. A graphical procedure for estimating the kinetic parameters and sensitivity analysis of the parameters from current density is suggested.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.036
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    ABSTRACT: Fe–TiO2 nanotubes (FeNTs) composite with different amounts of iron were obtained by anodizing of titanium foils in a single-step process using potassium ferricyanide as the iron source. The SEM results showed that the surface morphology is dependent on the potassium ferricyanide concentration in solution. Diffuse reflectance spectra showed an increase in the visible absorption relative to undoped TiO2 nanotubes (NTs). The photo-electrochemical performance was examined under xenon lamp illumination in 1 M NaOH electrolyte. Photo-electrochemical characterization shows that iron doping efficiently enhances the photo-catalytic water splitting performance of FeNTs samples. The sample FeNTs-2, that formed by anodic oxidation in an ethylene glycol electrolyte containing 9 mM K3Fe(CN)6, exhibited better photo-catalytic activity than the NTs and FeNTs fabricated using other iron concentrations. This work demonstrated a feasible and simple anodizing method to fabricate an effective, reproducible, and inexpensive photoanode for solar water splitting applications.
    Journal of electroanalytical chemistry 08/2015; 751. DOI:10.1016/j.jelechem.2015.05.035