Artur Zieliński

Artur Zieliński
Gdansk University of Technology · Department of Electrochemistry, Corrosion and Materials Engineering

dr.

About

60
Publications
4,826
Reads
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493
Citations
Additional affiliations
January 2004 - present
Gdansk University of Technology
Position
  • Researcher
Education
October 1999 - April 2004
Gdansk University of Technology
Field of study
  • Corrosion Science
October 1991 - November 1998
Gdansk University of Technology
Field of study
  • Chemical Technology

Publications

Publications (60)
Article
Full-text available
Diamond particles have great potential to enhance the mechanical, optical, and thermal properties of diamond–polymer composites. However, the improved properties of diamond–polymer composites depend on the size, dispersibility, and concentration of diamond particles. In the present study, diamond–polymer composites were prepared by adding the micro...
Article
Full-text available
The complex electrocatalytic performance of gold nanocubes (AuNCs) is the focus of the presented paper. The faceted shapes of AuNCs and the individual assembling process at the electrode surfaces define heterogeneous conditions for the purpose of electrocatalytic processes. Topographic and electron imaging demonstrated slightly rounded AuNC (avg. 3...
Article
This paper presents a polynomial description of spectrograms obtained using Dynamic Electrochemical Impedance Spectroscopy. A method to fit the polynomial degree correctly is discussed. A simple electrical system of a diode connected in parallel with a capacitor was used for testing. Dynamic impedance measurements during potentiodynamic polarizatio...
Article
Full-text available
Copper-based coatings are known for their high antibacterial activity. In this study, nanocomposite Cu–Sn–TiO2 coatings were obtained by electrodeposition from an oxalic acid bath additionally containing 4 g/dm³ TiO2 with mechanical and ultrasonic agitation. Ultrasound treatment was performed at 26 kHz frequency and 32 W/dm³ power. The influence of...
Article
Full-text available
Carbon monoxide pollution of hydrogen stream. • On-line impedance changes of anode exposed to different concentrations of carbon monoxide. • Evaluation of carbon monoxide surface coverage of anodic catalyst. • Coherence between AC and DC measurements by self-validation methodology. A B S T R A C T Evaluation of performance of a proton exchange memb...
Article
Article available at https://authors.elsevier.com/a/1bsQQ1HxM4sqH6 The impedance of a proton exchange membrane fuel cell powered by hydrogen contaminated with carbon monoxide, ranging from 150 to 300 ppb, is measured and discussed. The tested range of CO concentration complied with the fuel standard specified in the ISO standards. Studies of influe...
Article
Full-text available
This work presents a new approach to the analysis of immittance spectrograms of systems characterised by non-stationarity. The possibility of linking the evolution of the immittance response with changes in the parameters describing the system is achieved by introducing a spectrum in differential form. By using the above procedure, it becomes possi...
Article
To achieve optimal performance of a fuel cell, a reliable monitoring and diagnostic method is required. The currently utilized methods give limited information or they are impossible to use under dynamic working conditions. To obtain comprehensive information about the fuel cell operation we utilized novel dynamic electrochemical impedance spectros...
Article
Full-text available
In this paper, we describe the modification of Nanoscale Impedance Microscopy (NIM), namely, a combination of contact-mode atomic force microscopy with local impedance measurements. The postulated approach is based on the application of multifrequency voltage perturbation instead of standard frequency-by-frequency analysis, which among others offer...
Article
The electrochemical active surface area (EASA) of polycrystalline boron-doped diamond (BDD) electrodes is heterogeneous and can be affected by numerous factors. There is a strong need for proper consideration of BDD heterogeneity in order to improve this material’s range of application in electrochemistry. Localized changes in surface termination d...
Preprint
Full-text available
In this paper, we describe the modification of Nanoscale Impedance Microscopy (NIM), namely, a combination of contact-mode atomic force microscopy with local impedance measurements. The postulated approach is based on the application of multifrequency voltage perturbation instead of standard frequency-by-frequency analysis, which among others offer...
Poster
Full-text available
It is known that the electrochemical active surface area (EASA) of highly boron-doped diamond electrodes (BDD) is heterogeneous and dependent among others on BDD's termination type. Hydrogen to oxygen termination (HT-to OT-BDD) modification leads to significant increase in surface resistance and charge transfer resistance value. The degree of chang...
Article
The atomic force microscope (AFM) was invented in 1986 as an alternative to the scanning tunnelling microscope, which cannot be used in studies of non-conductive materials. Today the AFM is a powerful, versatile and fundamental tool for visualizing and studying the morphology of material surfaces. Moreover, additional information for some materials...
Article
There is an urgent need for an effective and economically viable increase in electrochemical performance of boron-doped diamond (BDD) electrodes that are used in sensing and electrocatalytic applications. Specifically, one must take into consideration the electrode heterogeneity due to nonhomogenous boron-dopant distribution and the removal of sp2...
Article
Full-text available
This paper presents results of failure analysis study to characterize the corrosion damage that occurred in the water supply system in Krakow. This analysis includes: electrochemical noise, linear polarization and resistometric measurements. Water aggressiveness of four water intakes was defined using Langelier and Ryznar indices. Results from this...
Article
In the recent years atomic force microscopy is recognized as valuable tool for investigation of surficial features of construction materials. It concerns, among other things, studies of changes caused by such phenomena as galvanic corrosion, passivation associated with the growth of oxide layers, or sensitization of austenitic steels with the forma...
Article
In recent years, there is noticeable interest in application of various types of scanning probe microscopy in material science research. One of them is contact atomic force microscopy combined with local impedance measurements, known as nanoscale impedance microscopy. Literature references present its application in investigations of new materials,...
Article
Full-text available
Local impedance imaging (LII) was used to visualise surficial deviations of AC impedances in polycrystalline boron-doped diamond (BDD). The BDD thin film electrodes were deposited onto the highly doped silicon substrates via MW PE CVD. The studied boron dopant concentrations, controlled by the [B]/[C] ratio in plasma, ranged from 1 10^16 to 2 10^21...
Article
Full-text available
This study presents a novel approach to impedance measurements. The methodology discussed is limited to contact in the sample-probe system under ambient conditions without the presence of electrolyte. Comparison with results of direct and alternating current measurements for well-defined metallic surfaces are made. In spite of idealization related...
Article
Full-text available
Nanoimpedance measurements, using the dynamic impedance spectroscopy technique, were carried out during loading and unloading force of a probe on three kinds of materials of different resistivity. These materials were: gold, boron-doped diamond, and AISI 304 stainless steel. Changes of impedance spectra versus applied force were registered and diff...
Article
The boron-doped diamond (BDD) electrodes with different boron concentrations have been tested as electrode material for sulphamerazine (SRM) oxidation in water solution. An investigation of the electrode morphology and molecular structure was carried out using high resolution scanning electron microscopy (SEM) and Raman spectroscopy. Electro-chemic...
Article
Motion of a tip used in an atomic force microscope can be described by the Lennard-Jones potential, approximated by the van der Waals force in a long-range interaction. Here we present a general framework of approximation of the tip motion by adding three terms of Taylor series what results in non-zero harmonics in an output signal. We have worked...
Article
Full-text available
Purpose ‐ The purpose of this paper is to present the results of an atomic force microscopy (AFM) based approach to local impedance spectroscopy (LIS) measurement performed on AA2024 and AA2024-T3 aluminium alloys. Design/methodology/approach ‐ AFM-LIS measurements were performed ex-situ without the electrolyte environment, so in fact the electrica...
Article
In the recent years we witness great interest in merging electrochemical experiments with modern digital signal processing techniques. Wavelet analysis seems to be one of the most promising approaches. In the case of wavelets there are various families of analyzing functions which can be selected to suit given experiment demands. In the paper the a...
Article
Approaches to the electrochemical noise (EN) analysis are generally based on the assumption of its stationarity. In spite of usability of such methodology, occurrences of non-stationary signals are rather frequent in the practice. The methods of overcoming this drawback are presented in the paper. Applications of short-time Fourier transformation a...
Article
Full-text available
Atomic force microscopy (AFM) is one of the most sensitive tools for nanoscale imaging. As such, it is very sensitive to external noise sources that can affect the quality of collected data. The intensity of the disturbance depends on the noise source and the mode of operation. In some cases, the internal noise from commercial AFM controllers can b...
Article
The paper presents the results of the AFM based approach to local impedance spectroscopy (LIS) measurements performed within the region of austenite grain interiors and the austenite grain boundaries for both sensitized and non-sensitized AISI 304 stainless steel (SS). The local impedance investigations in the AFM contact mode were carried out afte...
Article
Several techniques have been developed in order to characterize electrical properties of surfaces in micrometer/nanometer scale. Obtaining of the spatial distribution of sample resistance, capacitance or potential requires separate measurements performed in different scanning modes. On the other hand, analysis of the frequency response of investiga...
Article
Full-text available
The paper presents a new approach to organic coating condition evaluation at micrometer scale using localized impedance measurements. It is based on atomic force microscopy (AFM) in contact mode. Impedance is measured between conductive AFM tip and metal substrate covered with organic coating. A single-frequency voltage perturbation signal is appli...
Article
Full-text available
Atomic force microscopy (AFM) is a universal imaging technique, while impedance spectroscopy is a fundamental method of determining the electrical properties of materials. It is useful to combine those techniques to obtain the spatial distribution of an impedance vector. This paper proposes a new combining approach utilizing multifrequency scanning...
Article
The Portevin–LeChatelier (PLC) effect exemplifies itself as continuous stress changes during the tensile deformation of particular alloys. The PLC effect takes several forms, which differ significantly in both the spatial distribution of strain bands and in the shape of the stress–strain curve. The courses corresponding to particular serration type...
Article
Portevin–LeChatelier effect (serration) exemplifies as a series of transient signals on a stress–strain curve. There are several types of serration characterized by various spectral patterns. On the other hand these types of serration occur in different, partially overlapping strain regions, what makes it impossible to separate them by a traditiona...
Article
Important from mechanical point of view the Portevin–Le Chatelier serration phenomenon is being characterized by a complicated spectral profile. As a typical example of nonstationary processes it demands a special treatment allowing to follow the evolution of energy of stress fluctuations as a function of strain. The authors suggest the utilization...
Article
Full-text available
Nonlinear processes are often encountered in the practice of electrochemical and corrosion measurements. Especially, activation-controlled processes are inherently nonlinear. Taking into account investigations of electrode reactions, linear approximation is a popular approach. In this introductory paper, the possibility of extension of electrochemi...
Article
A mathematical basis of a new method of measurement of electrode impedance is presented. The method uses a non-stationary perturbation signal whose frequency varies linearly with time. The amplitude of a non-stationary sine perturbation signal is constant. The recording and analysis of both the perturbation and response signals allow the determinat...
Article
Full-text available
Experimental results on the polarization resistance estimation in a three-electrode setup that consists of two carbon steel electrodes and the silver reference electrode are presented. The corrosion rate varies with the conditions changing inside the concrete structure due to its irregular wetting in an aqueous solution of NaCl. The change of polar...
Article
Electrochemical methods play an important role in corrosion researches so; there is a wide range of techniques for the monitoring of corrosion. The aim of this paper was to collect experimental data with different methods and to find correlation between them. The corrosion behaviour of low carbon steel (AISI 1026) has been studied in artificial sea...
Article
Full-text available
Oscillations of species concentration are phenomena accompanying several types of electrochemical and purely chemical processes. Importance of analyzing of such processes results from both scientific and practical reasons. In the paper the authors deal with investigation of time dependent spectra of various stages of Belousov-Zhabotinsky type chemi...
Article
Electrochemical noise (EN) has been intensively investigated for the last few decades. There are practical applications of EN measurements for corrosion recognition but the phenomenon needs still further research. The experimental results of correlation between the surface damages of the metal electrodes and the intensity of voltage fluctuations ob...
Article
Nonlinear processes are often encountered in the practice of electrochemical corrosion measurements. Especially, activation controlled processes are inherently nonlinear. In the investigations of electrode reactions linear approximation is common approach. In this introductory paper the possibility of extension of electrochemical noise measurements...
Article
Electrochemical noise is electrochemical technique of growing interest. In the case of random signals obtained by discussed method the power spectral density is one of the fundamental characteristic of process. However its correct estimation imposes stationarity condition on signal under analysis. In the paper the authors present technique for quan...
Article
Corrosion in concrete can cause disastrous destructions of bridges and other constructions. Different methods of corrosion monitoring can be applied including electrochemical noise despite its disadvantageous limitations. Noise measurements enable continuous monitoring of corrosive conditions inside concrete and recognition when corrosion starts to...
Article
Full-text available
This paper is a preliminary study of time–frequency behavior of homogenous Belousov–Zhabotinsky reaction in a batch reactor. A series of measurements performed for a variable concentration of the reaction substrates led to the conclusion that there exists time-dependency of an instantaneous frequency of fundamental frequency and harmonics and of el...
Article
Analysis of non-stationary electrochemical oscillations emerges utilization of the techniques allowing an observation of time evolution of their parameters such as instantaneous frequency, amplitude or frequency band. An algorithm of extraction of these parameters can be based on one of linear or quadratic time–frequency representations of oscillat...
Article
Electrochemical noise data in the presence of pitting corrosion were analyzed. A correlation between the intensity of the observed noise and mass loss of steel electrodes was recognized. The registered noise was decomposed into a set of band limited components using wavelet transform. It has been observed that the standard deviation of the chosen c...
Article
Full-text available
The results of the electrochemical noise observations in 0H18N9 steel are presented. Current noise was obtained by potentiostatic measurements in aqueous solution of 0.1M H2SO4 and 0.06M Cl−. The recorded noise had an evident trend and peaks that are typically observed during pitting corrosion. The trend was removed by means of the third order poly...
Article
Electrochemical oscillations frequently accompany the electrodissolution of metals. They often exhibit non-stationary character. Accordingly a need for analysis in the joint time–frequency domain appears. Comparison of three new methods: STFT, wavelet transformation and Wigner–Ville distribution is presented in this paper. Advantages of these metho...
Article
The corrosion processes can be estimated by measurements of electrochemical noise. Noise can be observed as current and voltage fluctuations in a three-electrode setup. The presence of pitting corrosion is manifested as transients in current and voltage fluctuations. For an estimation of the pitting corrosion presence in the recorded current fluctu...
Article
Spectral analysis was carried out by Fourier and Gabor transformation of a nonstationary process. It is shown that spectral analysis by Gabor transformation correctly reflects the analyzed signal of varying spectral composition. Fourier transformation is an averaged spectral characteristic. Spectral analysis of anodic current oscillations of copper...
Article
Results have been presented for regular Fourier transformation of results of electrochemical noise measurements. The variability of the frequency composition and the averaging character of the classical Fourier analysis have been shown for the example electrochemical noise records. Loss of information concerning the time evolution of the signal has...
Article
The Wigner-Ville distribution (WVD) method has been applied for the analysis of spontaneous oscillations of the anodic copper dissolution process. The nonstationary character of the investigated process has been shown. The observed current oscillations contain deterministic components not revealed in the classic Fourier spectrogram. The WVD spectro...
Article
Full-text available
The results of electrochemical noise measurements and their analysis for evaluation of corrosion intensity in the water supply system are presented. The polarization resistance R p is calculated for corrosion evaluation, estimated by applying the proposed method of noise analysis. The method includes trend removal and impedance calculation by divid...

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Projects

Projects (2)
Project
The project aims to exploit the novel 3D approach to design the electrochemical sensory platform, based on self-assembly mechanisms of gold nanocubes (NC’s) at the electrode surface and resulting from the presence of the electric field and/or interaction of the NC’s with target biochemical systems. We intend to utilize this effect for the first time in the biosensor platform, where the tested system will be based on simultaneous diagnostics of biochemical and physicochemical phenomena using multi-frequency opto-electrochemical detection. We hypothesize the electric field will induce specific impedance responses by ordered two-dimensional sensory surfaces (Au-Minecraft) which is due to disturbances in the uniformity of the diffusion fields. Furthermore, the self-assembly within the Au-Minecraft may also originate from the intermolecular interactions between two differently functionalized types of NC’s. The following approach should allow designing a new family of biosensing systems with enhanced sensing capabilities.
Project
The goal of this project is to provide further knowledge on the behaviour of BDD electrodes under anodic polarization. In our previous work we provide proof on the factors affecting heterogeneous electric properties in nanoscale, originating from differences in boron dopant concentration and termination of the electrode.