TY  - CONF
AU  - Varničić, Miroslava
AU  - Sundmacher, Kai
AU  - Vidaković-Koch, Tanja
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6002
AB  - The focus of this research is on rational design of porous enzymatic electrodes as biocatalysts for gluconic acid production.
PB  - Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg
C3  - 2nd Symposium on Insights into Gas Diffusion Electrodes: From Fundamentals to Industrial Applications, 05-07.09.2022, Magdeburg, Germany
T1  - Rational design of 3-D porous enzymatic electrodes for the production of gluconic acid in bioelectrochemical system
SP  - P-32
UR  - https://hdl.handle.net/21.15107/rcub_cer_6002
ER  - 

@conference{
author = "Varničić, Miroslava and Sundmacher, Kai and Vidaković-Koch, Tanja",
year = "2022",
abstract = "The focus of this research is on rational design of porous enzymatic electrodes as biocatalysts for gluconic acid production.",
publisher = "Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg",
journal = "2nd Symposium on Insights into Gas Diffusion Electrodes: From Fundamentals to Industrial Applications, 05-07.09.2022, Magdeburg, Germany",
title = "Rational design of 3-D porous enzymatic electrodes for the production of gluconic acid in bioelectrochemical system",
pages = "P-32",
url = "https://hdl.handle.net/21.15107/rcub_cer_6002"
}

Varničić, M., Sundmacher, K.,& Vidaković-Koch, T.. (2022). Rational design of 3-D porous enzymatic electrodes for the production of gluconic acid in bioelectrochemical system. in 2nd Symposium on Insights into Gas Diffusion Electrodes: From Fundamentals to Industrial Applications, 05-07.09.2022, Magdeburg, Germany
Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg., P-32.
https://hdl.handle.net/21.15107/rcub_cer_6002

Varničić M, Sundmacher K, Vidaković-Koch T. Rational design of 3-D porous enzymatic electrodes for the production of gluconic acid in bioelectrochemical system. in 2nd Symposium on Insights into Gas Diffusion Electrodes: From Fundamentals to Industrial Applications, 05-07.09.2022, Magdeburg, Germany. 2022;:P-32.
https://hdl.handle.net/21.15107/rcub_cer_6002 .

Varničić, Miroslava, Sundmacher, Kai, Vidaković-Koch, Tanja, "Rational design of 3-D porous enzymatic electrodes for the production of gluconic acid in bioelectrochemical system" in 2nd Symposium on Insights into Gas Diffusion Electrodes: From Fundamentals to Industrial Applications, 05-07.09.2022, Magdeburg, Germany (2022):P-32,
https://hdl.handle.net/21.15107/rcub_cer_6002 .

TY  - JOUR
AU  - Varničić, Miroslava
AU  - Zasheva, Iva
AU  - Haak, Edgar
AU  - Sundmacher, Kai
AU  - Vidakovic-Koch, Tanja
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5978
AB  - Electroenzymatic processes are interesting solutions for the development of new processes based on renewable feedstocks, renewable energies, and green catalysts. High-selectivity and sustainability of these processes are usually assumed. In this contribution, these two aspects were studied in more detail. In a membrane-less electroenzymatic reactor, 97% product selectivity at 80% glucose conversion to gluconic acid was determined. With the help of nuclear magnetic resonance spectroscopy, two main side products were identified. The yields of D-arabinose and formic acid can be controlled by the flow rate and the electroenzymatic reactor mode of operation (fuel cell or ion-pumping). The possible pathways for the side product formation have been discussed. The electroenzymatic cathode was found to be responsible for a decrease in selectivity. The choice of the enzymatic catalyst on the cathode side led to 100% selectivity of gluconic acid at somewhat reduced conversion. Furthermore, sustainability of the electroenzymatic process is estimated based on several sustainability indicators. Although some indicators (like Space Time Yield) are favorable for electroenzymatic process, the E-factor of electroenzymatic process has to improve significantly in order to compete with the fermentation process. This can be achieved by an increase of a cycle time and/or enzyme utilization which is currently low.
PB  - MDPI
T2  - Catalysts
T1  - Selectivity and sustainability of electroenzymatic process for glucose conversion to gluconic acid
VL  - 10
IS  - 3
SP  - 269
DO  - 10.3390/catal10030269
ER  - 

@article{
author = "Varničić, Miroslava and Zasheva, Iva and Haak, Edgar and Sundmacher, Kai and Vidakovic-Koch, Tanja",
year = "2020",
abstract = "Electroenzymatic processes are interesting solutions for the development of new processes based on renewable feedstocks, renewable energies, and green catalysts. High-selectivity and sustainability of these processes are usually assumed. In this contribution, these two aspects were studied in more detail. In a membrane-less electroenzymatic reactor, 97% product selectivity at 80% glucose conversion to gluconic acid was determined. With the help of nuclear magnetic resonance spectroscopy, two main side products were identified. The yields of D-arabinose and formic acid can be controlled by the flow rate and the electroenzymatic reactor mode of operation (fuel cell or ion-pumping). The possible pathways for the side product formation have been discussed. The electroenzymatic cathode was found to be responsible for a decrease in selectivity. The choice of the enzymatic catalyst on the cathode side led to 100% selectivity of gluconic acid at somewhat reduced conversion. Furthermore, sustainability of the electroenzymatic process is estimated based on several sustainability indicators. Although some indicators (like Space Time Yield) are favorable for electroenzymatic process, the E-factor of electroenzymatic process has to improve significantly in order to compete with the fermentation process. This can be achieved by an increase of a cycle time and/or enzyme utilization which is currently low.",
publisher = "MDPI",
journal = "Catalysts",
title = "Selectivity and sustainability of electroenzymatic process for glucose conversion to gluconic acid",
volume = "10",
number = "3",
pages = "269",
doi = "10.3390/catal10030269"
}

Varničić, M., Zasheva, I., Haak, E., Sundmacher, K.,& Vidakovic-Koch, T.. (2020). Selectivity and sustainability of electroenzymatic process for glucose conversion to gluconic acid. in Catalysts
MDPI., 10(3), 269.
https://doi.org/10.3390/catal10030269

Varničić M, Zasheva I, Haak E, Sundmacher K, Vidakovic-Koch T. Selectivity and sustainability of electroenzymatic process for glucose conversion to gluconic acid. in Catalysts. 2020;10(3):269.
doi:10.3390/catal10030269 .

Varničić, Miroslava, Zasheva, Iva, Haak, Edgar, Sundmacher, Kai, Vidakovic-Koch, Tanja, "Selectivity and sustainability of electroenzymatic process for glucose conversion to gluconic acid" in Catalysts, 10, no. 3 (2020):269,
https://doi.org/10.3390/catal10030269 . .

TY  - JOUR
AU  - Panić, Vladimir
AU  - Vidakovic-Koch, Tanja R.
AU  - Andric, Milan
AU  - Petkovska, Menka
AU  - Sundmacher, Kai
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/860
AB  - Kinetics of ferrocyanide electrooxidation was investigated by nonlinear frequency response analysis (NLFRA) of current output to the sinusoidal large-amplitude potential perturbation input. The aim was to establish a measurement routine and to validate experimentally the NLFRA method on an example of a simple electrochemical reaction comprising charge and mass transfer. The first-order frequency response function (FRF) contains quasi-linear information on the reaction kinetics and corresponds to electrochemical admittance. The nonlinear fingerprint of the system is contained in the second-order FRF. The first- and second-order FRFs are determined from experimental first and second harmonics. Their intensities depend on the input signal amplitude, which has to be chosen carefully to avoid the contributions of higher order harmonics. The influence of the potential and electrode rotation speed on the first- and second-order FRFs has been studied. The experimentally obtained FRFs are compared with the theoretical FRFs determined in Part I of this work. The theoretical FRFs can predict all essential experimental observations. These findings indicate that additional information on reaction kinetics can be gained from the analysis of the second-order FRF.
PB  - American Chemical Society (ACS)
T2  - Journal of Physical Chemistry C
T1  - Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part II. Measurement Routine and Experimental Validation
VL  - 115
IS  - 35
SP  - 17352
EP  - 17358
DO  - 10.1021/jp201300a
ER  - 

@article{
author = "Panić, Vladimir and Vidakovic-Koch, Tanja R. and Andric, Milan and Petkovska, Menka and Sundmacher, Kai",
year = "2011",
abstract = "Kinetics of ferrocyanide electrooxidation was investigated by nonlinear frequency response analysis (NLFRA) of current output to the sinusoidal large-amplitude potential perturbation input. The aim was to establish a measurement routine and to validate experimentally the NLFRA method on an example of a simple electrochemical reaction comprising charge and mass transfer. The first-order frequency response function (FRF) contains quasi-linear information on the reaction kinetics and corresponds to electrochemical admittance. The nonlinear fingerprint of the system is contained in the second-order FRF. The first- and second-order FRFs are determined from experimental first and second harmonics. Their intensities depend on the input signal amplitude, which has to be chosen carefully to avoid the contributions of higher order harmonics. The influence of the potential and electrode rotation speed on the first- and second-order FRFs has been studied. The experimentally obtained FRFs are compared with the theoretical FRFs determined in Part I of this work. The theoretical FRFs can predict all essential experimental observations. These findings indicate that additional information on reaction kinetics can be gained from the analysis of the second-order FRF.",
publisher = "American Chemical Society (ACS)",
journal = "Journal of Physical Chemistry C",
title = "Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part II. Measurement Routine and Experimental Validation",
volume = "115",
number = "35",
pages = "17352-17358",
doi = "10.1021/jp201300a"
}

Panić, V., Vidakovic-Koch, T. R., Andric, M., Petkovska, M.,& Sundmacher, K.. (2011). Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part II. Measurement Routine and Experimental Validation. in Journal of Physical Chemistry C
American Chemical Society (ACS)., 115(35), 17352-17358.
https://doi.org/10.1021/jp201300a

Panić V, Vidakovic-Koch TR, Andric M, Petkovska M, Sundmacher K. Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part II. Measurement Routine and Experimental Validation. in Journal of Physical Chemistry C. 2011;115(35):17352-17358.
doi:10.1021/jp201300a .

Panić, Vladimir, Vidakovic-Koch, Tanja R., Andric, Milan, Petkovska, Menka, Sundmacher, Kai, "Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part II. Measurement Routine and Experimental Validation" in Journal of Physical Chemistry C, 115, no. 35 (2011):17352-17358,
https://doi.org/10.1021/jp201300a . .

TY  - JOUR
AU  - Vidakovic-Koch, Tanja R.
AU  - Panić, Vladimir
AU  - Andric, Milan
AU  - Petkovska, Menka
AU  - Sundmacher, Kai
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/852
AB  - In this work, a nonlinear frequency response (NLFR) analysis was used for a first time in a theoretical study of nonlinear behavior of electrochemical (EC) ferrocyanide oxidation as a simple model reaction. Analytical expressions of the first- and second-order frequency response functions (FRFs) are derived. The first-order FRF is equivalent to the EC admittance and contains information about the linear behavior of the system, whereas the second-order FRF contains additional nonlinear information. The influence of different parameters, such as the heterogeneous rate constant, solution resistance, double-layer capacitance, diffusion coefficients of the reacting species, and electrode rotation rate on the characteristics of the first- and second-order FRFs was checked and discussed. It was found that the second-order FRF is more sensitive to the changes of the studied parameters than the first-order FRF. Experimental verification of the NLFR analysis of EC ferrocyanide oxidation is presented in Part II of this work
PB  - American Chemical Society (ACS)
T2  - Journal of Physical Chemistry C
T1  - Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part I. A Theoretical Analysis
VL  - 115
IS  - 35
SP  - 17341
EP  - 17351
DO  - 10.1021/jp201297v
ER  - 

@article{
author = "Vidakovic-Koch, Tanja R. and Panić, Vladimir and Andric, Milan and Petkovska, Menka and Sundmacher, Kai",
year = "2011",
abstract = "In this work, a nonlinear frequency response (NLFR) analysis was used for a first time in a theoretical study of nonlinear behavior of electrochemical (EC) ferrocyanide oxidation as a simple model reaction. Analytical expressions of the first- and second-order frequency response functions (FRFs) are derived. The first-order FRF is equivalent to the EC admittance and contains information about the linear behavior of the system, whereas the second-order FRF contains additional nonlinear information. The influence of different parameters, such as the heterogeneous rate constant, solution resistance, double-layer capacitance, diffusion coefficients of the reacting species, and electrode rotation rate on the characteristics of the first- and second-order FRFs was checked and discussed. It was found that the second-order FRF is more sensitive to the changes of the studied parameters than the first-order FRF. Experimental verification of the NLFR analysis of EC ferrocyanide oxidation is presented in Part II of this work",
publisher = "American Chemical Society (ACS)",
journal = "Journal of Physical Chemistry C",
title = "Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part I. A Theoretical Analysis",
volume = "115",
number = "35",
pages = "17341-17351",
doi = "10.1021/jp201297v"
}

Vidakovic-Koch, T. R., Panić, V., Andric, M., Petkovska, M.,& Sundmacher, K.. (2011). Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part I. A Theoretical Analysis. in Journal of Physical Chemistry C
American Chemical Society (ACS)., 115(35), 17341-17351.
https://doi.org/10.1021/jp201297v

Vidakovic-Koch TR, Panić V, Andric M, Petkovska M, Sundmacher K. Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part I. A Theoretical Analysis. in Journal of Physical Chemistry C. 2011;115(35):17341-17351.
doi:10.1021/jp201297v .

Vidakovic-Koch, Tanja R., Panić, Vladimir, Andric, Milan, Petkovska, Menka, Sundmacher, Kai, "Nonlinear Frequency Response Analysis of the Ferrocyanide Oxidation Kinetics. Part I. A Theoretical Analysis" in Journal of Physical Chemistry C, 115, no. 35 (2011):17341-17351,
https://doi.org/10.1021/jp201297v . .

TY  - CONF
AU  - Panić, Vladimir
AU  - Vidaković-Koch, Tanja
AU  - Živković, Luka
AU  - Petkovska, Menka
AU  - Sundmacher, Kai
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3539
AB  - In general, electrochemical (EC) systems are non-linear, which means they respond nonlinearly to a frequency-dependent periodic input perturbation of high amplitude imposed around a steady-state. In addition, the kinetics of EC reactions are quite complex and different rivalling model presentations can be formulated for certain EC reaction. While standard electrochemical methods (steady-state and electrochemical impedance spectroscopy) showed low sensitivity towards the model discrimination, non-linear frequency response analysis (NLFRA) of EC kinetics can appear advantageous for this purpose. In this work, NLFRA is applied in experimental and theoretical study of ferrocyanide oxidation as a model EC reaction.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
T1  - Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics
SP  - 145
EP  - 148
UR  - https://hdl.handle.net/21.15107/rcub_cer_3539
ER  - 

@conference{
author = "Panić, Vladimir and Vidaković-Koch, Tanja and Živković, Luka and Petkovska, Menka and Sundmacher, Kai",
year = "2010",
abstract = "In general, electrochemical (EC) systems are non-linear, which means they respond nonlinearly to a frequency-dependent periodic input perturbation of high amplitude imposed around a steady-state. In addition, the kinetics of EC reactions are quite complex and different rivalling model presentations can be formulated for certain EC reaction. While standard electrochemical methods (steady-state and electrochemical impedance spectroscopy) showed low sensitivity towards the model discrimination, non-linear frequency response analysis (NLFRA) of EC kinetics can appear advantageous for this purpose. In this work, NLFRA is applied in experimental and theoretical study of ferrocyanide oxidation as a model EC reaction.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings",
title = "Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics",
pages = "145-148",
url = "https://hdl.handle.net/21.15107/rcub_cer_3539"
}

Panić, V., Vidaković-Koch, T., Živković, L., Petkovska, M.,& Sundmacher, K.. (2010). Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
Serbian Chemical Society, Belgrade., 145-148.
https://hdl.handle.net/21.15107/rcub_cer_3539

Panić V, Vidaković-Koch T, Živković L, Petkovska M, Sundmacher K. Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings. 2010;:145-148.
https://hdl.handle.net/21.15107/rcub_cer_3539 .

Panić, Vladimir, Vidaković-Koch, Tanja, Živković, Luka, Petkovska, Menka, Sundmacher, Kai, "Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings (2010):145-148,
https://hdl.handle.net/21.15107/rcub_cer_3539 .

TY  - CONF
AU  - Panić, Vladimir
AU  - Vidaković-Koch, Tanja
AU  - Živković, Luka
AU  - Petkovska, Menka
AU  - Sundmacher, Kai
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3538
AB  - In general, electrochemical (EC) systems are non-linear, which means they respond nonlinearly to a frequency-dependent periodic input perturbation of high amplitude imposed around a steady-state. In addition, the kinetics of EC reactions are quite complex and different rivalling model presentations can be formulated for certain EC reaction. While standard electrochemical methods (steady-state and electrochemical impedance spectroscopy) showed low sensitivity towards the model discrimination, non-linear frequency response analysis (NLFRA) of EC kinetics can appear advantageous for this purpose. In this work, NLFRA is applied in experimental and theoretical study of ferrocyanide oxidation as a model EC reaction.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics
SP  - 80
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_cer_3538
ER  - 

@conference{
author = "Panić, Vladimir and Vidaković-Koch, Tanja and Živković, Luka and Petkovska, Menka and Sundmacher, Kai",
year = "2010",
abstract = "In general, electrochemical (EC) systems are non-linear, which means they respond nonlinearly to a frequency-dependent periodic input perturbation of high amplitude imposed around a steady-state. In addition, the kinetics of EC reactions are quite complex and different rivalling model presentations can be formulated for certain EC reaction. While standard electrochemical methods (steady-state and electrochemical impedance spectroscopy) showed low sensitivity towards the model discrimination, non-linear frequency response analysis (NLFRA) of EC kinetics can appear advantageous for this purpose. In this work, NLFRA is applied in experimental and theoretical study of ferrocyanide oxidation as a model EC reaction.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_cer_3538"
}

Panić, V., Vidaković-Koch, T., Živković, L., Petkovska, M.,& Sundmacher, K.. (2010). Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Serbian Chemical Society, Belgrade., 80-80.
https://hdl.handle.net/21.15107/rcub_cer_3538

Panić V, Vidaković-Koch T, Živković L, Petkovska M, Sundmacher K. Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2010;:80-80.
https://hdl.handle.net/21.15107/rcub_cer_3538 .

Panić, Vladimir, Vidaković-Koch, Tanja, Živković, Luka, Petkovska, Menka, Sundmacher, Kai, "Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2010):80-80,
https://hdl.handle.net/21.15107/rcub_cer_3538 .

TY  - JOUR
AU  - Panić, Vladimir
AU  - Vidaković, Tanja R.
AU  - Dekanski, Aleksandar
AU  - Mišković-Stanković, Vesna
AU  - Nikolić, B.Z.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/369
AB  - The capacitive properties of titanium electrodes with an active porous RuO2 coating were investigated in H2SO4 and NaCl solution by cyclic voltammetry and electrochemical impedance spectroscopy. Electrodes with two different masses of coating (thin and thick coating) were prepared from an ink suspension of the oxide synthesized by hydrolysis of ruthenium-ethoxide in ethanolic solution. The capacitive characteristics were found to be dependent on the coating mass and the electrolyte composition. It was shown that the impedance data of the prepared electrodes, registered at the open circuit potential, can be interpreted by a transmission line model of the equivalent electrical circuit. In this interpretation, the number of parallel branches containing resistor and capacitor in series is different for thin and thick coatings and in different electrolytes. More branches were required to describe the impedance behavior of the thick coating and to simulate the impedance data in NaCl solution. Simulation of the impedance data with the transmission line model of the equivalent circuit was also used to analyze the distribution of capacitance throughout the porous coating. The simulation indicated a more pronounced contribution of the capacitance of the outer coating layer to the total coating capacitance in the case of the proton-rich electrolyte. On the other hand, the presence of chloride ions in the electrolyte promoted a charging process at the inner coating surface, which is hardly accessible to the electrolyte.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Capacitive properties of RuO2-coated titanium electrodes prepared by the alkoxide ink procedure
VL  - 609
IS  - 2
SP  - 120
EP  - 128
DO  - 10.1016/j.jelechem.2007.06.011
ER  - 

@article{
author = "Panić, Vladimir and Vidaković, Tanja R. and Dekanski, Aleksandar and Mišković-Stanković, Vesna and Nikolić, B.Z.",
year = "2007",
abstract = "The capacitive properties of titanium electrodes with an active porous RuO2 coating were investigated in H2SO4 and NaCl solution by cyclic voltammetry and electrochemical impedance spectroscopy. Electrodes with two different masses of coating (thin and thick coating) were prepared from an ink suspension of the oxide synthesized by hydrolysis of ruthenium-ethoxide in ethanolic solution. The capacitive characteristics were found to be dependent on the coating mass and the electrolyte composition. It was shown that the impedance data of the prepared electrodes, registered at the open circuit potential, can be interpreted by a transmission line model of the equivalent electrical circuit. In this interpretation, the number of parallel branches containing resistor and capacitor in series is different for thin and thick coatings and in different electrolytes. More branches were required to describe the impedance behavior of the thick coating and to simulate the impedance data in NaCl solution. Simulation of the impedance data with the transmission line model of the equivalent circuit was also used to analyze the distribution of capacitance throughout the porous coating. The simulation indicated a more pronounced contribution of the capacitance of the outer coating layer to the total coating capacitance in the case of the proton-rich electrolyte. On the other hand, the presence of chloride ions in the electrolyte promoted a charging process at the inner coating surface, which is hardly accessible to the electrolyte.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Capacitive properties of RuO2-coated titanium electrodes prepared by the alkoxide ink procedure",
volume = "609",
number = "2",
pages = "120-128",
doi = "10.1016/j.jelechem.2007.06.011"
}

Panić, V., Vidaković, T. R., Dekanski, A., Mišković-Stanković, V.,& Nikolić, B.Z.. (2007). Capacitive properties of RuO2-coated titanium electrodes prepared by the alkoxide ink procedure. in Journal of Electroanalytical Chemistry
Elsevier., 609(2), 120-128.
https://doi.org/10.1016/j.jelechem.2007.06.011

Panić V, Vidaković TR, Dekanski A, Mišković-Stanković V, Nikolić B. Capacitive properties of RuO2-coated titanium electrodes prepared by the alkoxide ink procedure. in Journal of Electroanalytical Chemistry. 2007;609(2):120-128.
doi:10.1016/j.jelechem.2007.06.011 .

Panić, Vladimir, Vidaković, Tanja R., Dekanski, Aleksandar, Mišković-Stanković, Vesna, Nikolić, B.Z., "Capacitive properties of RuO2-coated titanium electrodes prepared by the alkoxide ink procedure" in Journal of Electroanalytical Chemistry, 609, no. 2 (2007):120-128,
https://doi.org/10.1016/j.jelechem.2007.06.011 . .

TY  - JOUR
AU  - Panić, Vladimir
AU  - Vidaković, Tanja
AU  - Gojković, Suzana
AU  - Dekanski, Aleksandar
AU  - Milonjić, Slobodan
AU  - Nikolić, Branislav
PY  - 2003
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4091
AB  - Preparation of RuOxHy/carbon black nanocomposite material was performed by the impregnation method starting from RuOxHy sol as a precursor. Black Pearls 2000® (BP) and Vulcan® XC-72 R (XC) were used as supporting materials. Samples of the composite were calcined in nitrogen atmosphere at temperatures from 130 to 450 °C. Chemical and structural characterization of the precursor and the composites was performed by using energy-dispersive X-ray fluorescence spectroscopy (EDXRFS), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). These techniques showed that the oxide impregnated into carbon support is hydrous and amorphous. The amorphous structure is maintained if the composite is calcined up to 300 °C, while the low-intensity peak at 2θ position that corresponds to the most intensive peak of the rutile structure was registered at 450 °C. The capacitance of the composite was determined using cyclic voltammetry. It was found that the capacitance is dependent on calcination temperature and surface area of the carbon black support. The highest specific capacitance of about 700 F g−1 of composite was registered for RuOxHy supported on BP and calcined at 300 °C while four times lower values was obtained for RuOxHy supported on XC. The capacitance measurements indicated that XC-supported RuOxHy composite is highly porous while BP-supported one is more compact.
PB  - Elsevier
T2  - Electrochimica Acta
T1  - The properties of carbon-supported hydrous ruthenium oxide obtained from RuOxHy sol
VL  - 48
SP  - 3805
EP  - 3813
DO  - 10.1016/S0013-4686(03)00514-0
ER  - 

@article{
author = "Panić, Vladimir and Vidaković, Tanja and Gojković, Suzana and Dekanski, Aleksandar and Milonjić, Slobodan and Nikolić, Branislav",
year = "2003",
abstract = "Preparation of RuOxHy/carbon black nanocomposite material was performed by the impregnation method starting from RuOxHy sol as a precursor. Black Pearls 2000® (BP) and Vulcan® XC-72 R (XC) were used as supporting materials. Samples of the composite were calcined in nitrogen atmosphere at temperatures from 130 to 450 °C. Chemical and structural characterization of the precursor and the composites was performed by using energy-dispersive X-ray fluorescence spectroscopy (EDXRFS), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). These techniques showed that the oxide impregnated into carbon support is hydrous and amorphous. The amorphous structure is maintained if the composite is calcined up to 300 °C, while the low-intensity peak at 2θ position that corresponds to the most intensive peak of the rutile structure was registered at 450 °C. The capacitance of the composite was determined using cyclic voltammetry. It was found that the capacitance is dependent on calcination temperature and surface area of the carbon black support. The highest specific capacitance of about 700 F g−1 of composite was registered for RuOxHy supported on BP and calcined at 300 °C while four times lower values was obtained for RuOxHy supported on XC. The capacitance measurements indicated that XC-supported RuOxHy composite is highly porous while BP-supported one is more compact.",
publisher = "Elsevier",
journal = "Electrochimica Acta",
title = "The properties of carbon-supported hydrous ruthenium oxide obtained from RuOxHy sol",
volume = "48",
pages = "3805-3813",
doi = "10.1016/S0013-4686(03)00514-0"
}

Panić, V., Vidaković, T., Gojković, S., Dekanski, A., Milonjić, S.,& Nikolić, B.. (2003). The properties of carbon-supported hydrous ruthenium oxide obtained from RuOxHy sol. in Electrochimica Acta
Elsevier., 48, 3805-3813.
https://doi.org/10.1016/S0013-4686(03)00514-0

Panić V, Vidaković T, Gojković S, Dekanski A, Milonjić S, Nikolić B. The properties of carbon-supported hydrous ruthenium oxide obtained from RuOxHy sol. in Electrochimica Acta. 2003;48:3805-3813.
doi:10.1016/S0013-4686(03)00514-0 .

Panić, Vladimir, Vidaković, Tanja, Gojković, Suzana, Dekanski, Aleksandar, Milonjić, Slobodan, Nikolić, Branislav, "The properties of carbon-supported hydrous ruthenium oxide obtained from RuOxHy sol" in Electrochimica Acta, 48 (2003):3805-3813,
https://doi.org/10.1016/S0013-4686(03)00514-0 . .

TY  - JOUR
AU  - Vidaković, Tanja R.
AU  - Avramov Ivić, Milka
AU  - Nikolić, Branislav Ž.
PY  - 2000
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/9
AB  - The effect of formaldehyde on the oxidation of 2-propanol and vice versa on gold single crystal planes (100 and 111) was studied. An activating effect in the reaction of the simultaneous oxidation of 2-propanol and formaldehyde was obtained on a gold (100) plane. In the case of a gold (111) electrode, the activation effect was not obtained. It was concluded that the adsorption of formaldehyde on the electrode surface prevents the adsorption of poisoning species formed during the electro-oxidation of 2-propanol on the Au(100) plane, while this is not the case on the Au(111) plane. The different behavior is caused by the difference in the symmetry of the surface atoms of these two Au single crystal planes. .
AB  - Ispitivan je uticaj formaldehida na oksidaciju 2-propanola i vice versa na monokristalima zlata orijentacija (100) i (111). U reakciji simultane oksidacije 2-propanola i formaldehida na monokristalu zlata orijentacije (100) dobijen je aktivacioni efekat. Ovaj efekat nije dobijen na elektrodi od zlata orijentacije (111). Zaključeno je da prisustvo adsorbovanog formaldehida onemogućava adsorpciju čvrsto vezanih intermedijera formiranih tokom elektrooksidacije 2-propanola, koji se ponašaju kao otrovi za elektrodu, na ravni (100). Ovo nije slučaj na ravni (111). Različito ponašanje je uzrokovano razlikama u simetriji i energijama površinskih atoma na ove dve monokristalne ravni. .
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The electro-oxidation of the mixture of formaldehyde and 2-propanol on gold (100) and (111) single crystal planes in alkaline medium
T1  - Elektrooksidacija smeše formaldehida i 2-propanola na monokristalima zlata orijentacije (100) i (111) u alkalnoj sredini
VL  - 65
IS  - 12
SP  - 915
EP  - 922
UR  - https://hdl.handle.net/21.15107/rcub_cer_9
ER  - 

@article{
author = "Vidaković, Tanja R. and Avramov Ivić, Milka and Nikolić, Branislav Ž.",
year = "2000",
abstract = "The effect of formaldehyde on the oxidation of 2-propanol and vice versa on gold single crystal planes (100 and 111) was studied. An activating effect in the reaction of the simultaneous oxidation of 2-propanol and formaldehyde was obtained on a gold (100) plane. In the case of a gold (111) electrode, the activation effect was not obtained. It was concluded that the adsorption of formaldehyde on the electrode surface prevents the adsorption of poisoning species formed during the electro-oxidation of 2-propanol on the Au(100) plane, while this is not the case on the Au(111) plane. The different behavior is caused by the difference in the symmetry of the surface atoms of these two Au single crystal planes. ., Ispitivan je uticaj formaldehida na oksidaciju 2-propanola i vice versa na monokristalima zlata orijentacija (100) i (111). U reakciji simultane oksidacije 2-propanola i formaldehida na monokristalu zlata orijentacije (100) dobijen je aktivacioni efekat. Ovaj efekat nije dobijen na elektrodi od zlata orijentacije (111). Zaključeno je da prisustvo adsorbovanog formaldehida onemogućava adsorpciju čvrsto vezanih intermedijera formiranih tokom elektrooksidacije 2-propanola, koji se ponašaju kao otrovi za elektrodu, na ravni (100). Ovo nije slučaj na ravni (111). Različito ponašanje je uzrokovano razlikama u simetriji i energijama površinskih atoma na ove dve monokristalne ravni. .",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The electro-oxidation of the mixture of formaldehyde and 2-propanol on gold (100) and (111) single crystal planes in alkaline medium, Elektrooksidacija smeše formaldehida i 2-propanola na monokristalima zlata orijentacije (100) i (111) u alkalnoj sredini",
volume = "65",
number = "12",
pages = "915-922",
url = "https://hdl.handle.net/21.15107/rcub_cer_9"
}

Vidaković, T. R., Avramov Ivić, M.,& Nikolić, B. Ž.. (2000). The electro-oxidation of the mixture of formaldehyde and 2-propanol on gold (100) and (111) single crystal planes in alkaline medium. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 65(12), 915-922.
https://hdl.handle.net/21.15107/rcub_cer_9

Vidaković TR, Avramov Ivić M, Nikolić BŽ. The electro-oxidation of the mixture of formaldehyde and 2-propanol on gold (100) and (111) single crystal planes in alkaline medium. in Journal of the Serbian Chemical Society. 2000;65(12):915-922.
https://hdl.handle.net/21.15107/rcub_cer_9 .

Vidaković, Tanja R., Avramov Ivić, Milka, Nikolić, Branislav Ž., "The electro-oxidation of the mixture of formaldehyde and 2-propanol on gold (100) and (111) single crystal planes in alkaline medium" in Journal of the Serbian Chemical Society, 65, no. 12 (2000):915-922,
https://hdl.handle.net/21.15107/rcub_cer_9 .