Author
Karolina Caban
Other affiliations: University of Greifswald, École Polytechnique Fédérale de Lausanne
Bio: Karolina Caban is an academic researcher from University of Warsaw. The author has contributed to research in topics: Ionic liquid & Microelectrode. The author has an hindex of 6, co-authored 9 publications receiving 279 citations. Previous affiliations of Karolina Caban include University of Greifswald & École Polytechnique Fédérale de Lausanne.
Papers
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TL;DR: In this article, a hybrid organic/inorganic system is proposed to construct a thin and moderately thick (μm level) films on electrode surfaces during electrodeposition by potential cycling, where polyaniline and metal hexacyanoferrate are produced.
101 citations
TL;DR: In this article, the lipophilicity of the anionic forms of drugs and model compounds was assessed by their transfer across (i) the water-2-nitrophenyl octyl ether (NPOE), (ii) water-nitrobenzene (NB), and (iii) the Water-noctanol interfaces by using the three-phase electrode technique.
Abstract: The lipophilicity of the anionic forms of drugs and model compounds was assessed by their transfer across (i) the water-2-nitrophenyloctyl ether (NPOE), (ii) the water-nitrobenzene (NB), and (iii) the water-noctanol interfaces by using the three-phase electrode technique. The lipophilicities, expressed in terms of logarithm of partition coefficients, range for the studied anions from -3.46 to 0.68 (log P A-,aq QNPOE ) for NPOE,
72 citations
TL;DR: In this paper, a three-phase electrode consisting of a droplet of a nitrobenzene solution of iron(III) tetraphenyl porphyrine chloride (Fe(III)-TPP-Cl) attached to a graphite electrode and immersed in an aqueous electrolyte solution was applied to determine the standard Gibbs energies of transfer of cations between water and nitron benzene.
55 citations
TL;DR: In this paper, the standard Gibbs energies of transfer of anions and cations across the nitrobenzene-heavy water interface are reported as measured by an electrochemical technique.
24 citations
TL;DR: In this article, it was concluded that microlayers of ionic liquid of the stoichiometry ANO2-R4N+ are formed at the microelectrode surface, where R denotes either −(CH2)3CH3 or −( CH2)5CH3 and A stands for the appropriate alkane.
Abstract: Steady-state limiting currents for the electroreduction of undiluted nitromethane and two other nitroalkanes are easily obtained by voltammetry and chronoamperometry at Pt microelectrodes. Since the electrode process is one-electron and the couterion is tetraalkylammonium cation, it is concluded that microlayers of ionic liquid of the stoichiometry ANO2-R4N+ are formed at the microelectrode surface, where R denotes either −(CH2)3CH3 or −(CH2)5CH3 and A stands for the appropriate alkane. The results of gravitational and temperature experiments indicate that the ionic layer is more viscous and less dense compared to pure corresponding nitroalkane. Behind the potential range of the limiting steady-state current, at potentials more negative than −6 V vs Pt quasi-reference electrode, unusual, very reproducible oscillations are formed. These oscillations are thought to be related either to the upward gravitational movement of microdrops of the ionic liquid formed or the electroreduction of the counterion and co...
14 citations
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TL;DR: Results from Diffraction Experiments 1351 and results from Spectroscopic Measurements 1354 4.3.1.
Abstract: 4. Structure of Ionic Hydration Shells 1351 4.1. Results from Diffraction Experiments 1351 4.1.1. X-ray Diffraction 1351 4.1.2. Neutron Diffraction 1351 4.2. Results from Computer Simulations 1352 4.3. Results from Spectroscopic Measurements 1354 4.3.1. Vibrational Spectroscopic Measurements 1354 4.3.2. EXAFS Spectroscopy 1354 4.3.3. NMR Relaxation Studies 1355 4.3.4. Dielectric Relaxation Studies 1355 4.4. Summary of the Structure of Ionic Hydration Shells 1355
1,445 citations
TL;DR: A review.
Abstract: A review. Physicochem. properties of ionic liqs. are discussed. Chem. and electrochem. reactivity in ionic liqs. is described including electrode reactions, electrode reaction kinetics, electrosynthesis, etc.
1,049 citations
TL;DR: In this paper, the first results of a laboratory program to provide empirical molecular data pertaining to the desorption of water (H2O) ice in the interstellar medium were presented.
Abstract: Water (H2O) ice is an important solid constituent of many astrophysical environments. To comprehend the role of such ices in the chemistry and evolution of dense molecular clouds and comets, it is necessary to understand the freeze-out, potential surface reactivity, and desorption mechanisms of such molecular systems. Consequently, there is a real need from within the astronomical modelling community for accurate empirical molecular data pertaining to these processes. Here we give the first results of a laboratory programme to provide such data. Measurements of the thermal desorption of H2O ice, under interstellar conditions, are presented. For ice deposited under conditions that realistically mimic those in a dense molecular cloud, the thermal desorption of thin films (�50 molecular layers) is found to occur with zero order kinetics characterised by a surface binding energy, Edes, of 5773 ±60 K, and a pre-exponential factor, A, of 10 30±2 molecules cm 2 s 1 . These results imply that, in the dense interstellar medium, thermal desorption of H2O ice will occur at significantly higher temperatures than has previously been assumed.
308 citations
TL;DR: In this article, a conducting polymer matrix is integrated into a polyaniline matrix to form a hybrid material to harness the electrochemical activity of nanosized oxide clusters, which can be put to work in energy storage applications.
225 citations
TL;DR: In this paper, the voltammetry of electrodes modified with electrochemically active droplets is reviewed, where electron transfer processes occur at the three phase boundary, the base circumference of the individual droplets.
Abstract: The use of microdroplet modified electrodes provides a simple methodology with which to study the biphasic electrochemistry of a plethora of species, encouraging the use of such techniques to mimic emulsion media. Furthermore, since the droplets may be miniaturised, this approach may assist in the field of biomimetic electrochemistry. For these reasons, this paper reviews the voltammetry of electrodes modified with electrochemically active droplets. The primary focus of the review is of unsupported droplets, where electron transfer processes occur at the three phase boundary, the base circumference of the individual droplets (of a volume range spanning nine orders of magnitude, going from microlitre to femtolitre volumes). The voltammetry of such systems is categorised via a semi-quantitative appreciation of the voltammetric characteristics. Finally, several topical examples illustrating the potential of application of this technology are described.
166 citations