Filtry
wszystkich: 2130
-
Katalog
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: ELECTROCHEMICAL CAPACITOR
-
Metabolic Profiles of New Unsymmetrical Bisacridine Antitumor Agents in Electrochemical and Enzymatic Noncellular Systems and in Tumor Cells
Publikacja -
The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption
Publikacja -
New possibilities of the passive layer cracking dynamics detection using a new Dynamic Electrochemical Impedance Spectroscopy.
PublikacjaNowa metoda Dynamicznej Elektrochemicznej Spektroskopii Impedancyjnej opracowana w Katedrze Elektrochemii, Korozji i Inżynierii Materiałowej Politechniki Gdańskiej daje możliwości określania charakterystyki impedancyjnej w dziedzinie czasu podczas procesu pękania ochronnej warstwy pasywnej. Fakt ten jest związany z procedurą analizującą wspomnianej techniki, która umożliwia selektywną analizę czasowo-częstotliwościową uzyskanych...
-
Electrochemical and photoelectrochemical characterization of photoanodes based on titania nanotubes modified by a BiVO4 thin film and gold nanoparticles
PublikacjaTitania nanotubes (TNT) modified with thin films of bismuth vanadate (BiVO4) and gold nanoparticles (GNP) were photoelectrochemically characterized as photoanodes for water photooxidation. Presence of bismuth vanadate enhanced efficiency of photocurrent generation in comparison with pristine TNTs under visible light illumination. Besides an extended range of absorbed light, the presence of both BiVO4 and GNP reduced the charge...
-
Tailoring Defects in B, N-Codoped Carbon Nanowalls for Direct Electrochemical Oxidation of Glyphosate and its Metabolites
PublikacjaTailoring the defects in graphene and its related carbon allotropes has great potential to exploit their enhanced electrochemical properties for energy applications, environmental remediation, and sensing. Vertical graphene, also known as carbon nanowalls (CNWs), exhibits a large surface area, enhanced charge transfer capability, and high defect density, making it suitable for a wide range of emerging applications. However, precise...
-
Multiple Reprocessing of Conductive PLA 3D-Printing Filament: Rheology, Morphology, Thermal and Electrochemical Properties Assessment
PublikacjaAdditive manufacturing technologies are gaining more and more attention, resulting in the development or modification of 3D printing techniques and dedicated materials. On the other hand, economic and ecological aspects force the industry to develop material recycling strategies. In this work, the multiple reprocessing of a commercially available PLA conductive composite with carbon black filler, dedicated to 3D printing, was investigated....
-
Electrochemical sensor for measurement of volatile organic compounds = Elektrochemiczny czujnik do oznaczania lotnych związków organicznych
PublikacjaPrzedstawiono rezultaty badań prototypowego czujnika do oznaczania benzaldehydu i formaldehydu w powietrzu. Określono czułość wskazań czujnika i jego granice oznaczalności wykorzystując jako technikę detekcyjną woltamperometrię fali prostokątnej (SWV). Elektrodę roboczą i przeciwelektrodę stanowiły elektrody z Pt. Elektrolitem wewnętrznym były ciecze jonowe: chlorek 1-heksylo,3- metyloimidazolinowy i bis(trifluorometylosulfonylo)imidek...
-
Synthesis and Thermal, Photophysical, Electrochemical Properties of 3,3-di[3-Arylcarbazol-9-ylmethyl]oxetane Derivatives
Publikacja -
Electrochemical investigations on the corrosion behaviour of reinforcing steel in diatomite- and zeolite-containing concrete exposed to sulphuric acid
PublikacjaCorrosion is a major concern for most structural applications. Its detrimental effect significantly reduces the life of metallic components. This paper presents the results of an experimental investigation of corrosion in the steel reinforcement of concrete samples having three different substituents: 20% diatomite, 20% zeolite, and a reference without zeolite or diatomite. All concrete specimens were subjected to a solution of...
-
Influence of the boron doping level on the electrochemical oxidation of the azo dyes at Si/BDD thin film electrodes
PublikacjaIn this study the efficiency of electrochemical oxidation of aromatic pollutants, such as reactive dyes, at boron-doped diamond on silicon (Si/BDD) electrodes was investigated. The level of [B]/[C] ratio which is effective for the degradation and mineralization of selected aromatic pollutants, and the impact of [B]/[C] ratio on the crystalline structure, layer conductivity and relative sp3/sp2 coefficient of a BDD electrode were...
-
Electrochemical Synthesis of Polysaccharide-Protein Complexes. Part 1: Preliminary Studies on Apple Pectin-Albumin Complexes
Publikacja -
Electrochemical oscillations and bistability during anodic dissolution of vanadium elektrode in acidic media. part 1. Experiment
PublikacjaDynamiczne niestabilności, oscylacje prądowe i bistabilność obserwowane były podczas anodowego roztwarzania elektrody wanadowej w trakcie badań wykorzystujących techniki stało i zmienno prądowe. Analizowany był wpływ warunków eksperymentalnych jak: stężenia kwasu, temperatury itd. Badania pozwoliły stworzyć diagramy przedstawiające regiony występowania oscylacji i bistabilności.
-
Determination of pseudocapacitance chan ges of nickel oxide NiO electrode with use of dynamic electrochemical impedancje spectroscopy
PublikacjaThe electrochemical capacitors (ECs) are attractive energy storage devices which can be applied in many electronic products (e.g., cameras, laptops, cell phones) or hybrid electric vehicles (HEV). The energy storage in ECs is based on capacitive (the electrical double layer charging/discharging) and pseudocapacitive (additional charge provided by faradic reaction) phenomena. Considering the electrodes exhibiting pseudocapacitance,...
-
Optical investigations of electrochemical processes using a long-period fiber grating functionalized by indium tin oxide
Publikacjahe growing needs for fast and reliable sensing devices stimulate development of new technological solutions. In this work a new multi-domain sensing method is demonstrated where optical sensing device has been applied to enhance amount of data received during electrochemical analysis. Thin, optically transparent, high-refractive-index, and electrically conductive indium tin oxide (ITO) film was deposited using magnetron sputtering...
-
Heterogeneous oxidation of highly boron-doped diamond electrodes and its influence on the surface distribution of electrochemical activity
PublikacjaThe 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 due to the influence of oxidation agent result in increased surface resistance. The...
-
Comparison of the paracetamol electrochemical determination using boron-doped diamond electrode and boron-doped carbon nanowalls
PublikacjaTwo different type of electrodes, boron-doped diamond electrode (BDD) and boron-doped carbon nanowalls (B:CNW) electrode, were used for the electrochemical determination of paracetamol using the cyclic voltammetry and the differential pulse voltammetry in phosphate buffered saline, pH = 7.0. The main advantage of these electrodes is their utilization without any additional modification of the electrode surface. The peak current...
-
Enhancing electrochemical properties of an ITO-coated lossy-mode resonance optical fiber sensor by electrodeposition of PEDOT:PSS
PublikacjaA sensor working in multiple domains may offer enhanced information about the properties of an investigated analyte, including those containing biological species. It has already been shown that a dual-domain sensing capability, i.e., in optical and electrochemical domains, can be offered by lossy-mode resonance (LMR) sensors based on indium-tin-oxide (ITO) thin film. The spectral response of the LMR sensors depends on the refractive...
-
Pressure in charge. Neglected parameter in hydrothermal synthesis turns out to be crucial for electrochemical properties of ammonium vanadates
PublikacjaAmmonium vanadates are of great interest as they exhibit unusual electrical and sensory properties.(NH4)2V6O16and (NH4)2V10O25$8H2O with various morphology were obtained in the hydrothermalsynthesis under controlled temperature and pressure. It was shown, that the pure (NH4)2V10O25$8H2Owas obtained under 50 bar of initial pressure, whereas lower pressure lead to the mixture of twocompounds. The influence of the pressure was studied...
-
Thermally tuneable optical and electrochemical properties of Au-Cu nanomosaic formed over the host titanium dimples
PublikacjaAu-Cu nanostructures offer unique optical and catalytic properties unlike the monometallic ones resulting from the specific interaction. Among others, they have the ability to exhibit surface plasmon resonance, electrochemical activity towards the oxygen and hydrogen evolution reaction (OER, HER) as well as improved photoresponse in relation to monometalic but those properties depend highly on the substrate where bimetallic structures...
-
Tuning Electrochemical Performance by Microstructural Optimization of the Nanocrystalline Functional Oxygen Electrode Layer for Solid Oxide Cells
PublikacjaFurther development of solid oxide fuel cell (SOFC) oxygen electrodes can be achieved through improvements in oxygen electrode design by microstructure miniaturisation alongside nanomaterials implementation. In this work, improved electrochemical performance of an La0.6Sr0.4Co0.2Fe0.8O3-d (LSCF) cathode was achieved by the controlled modification of the La0.6Sr0.4CoO3-d (LSC) nanocrystalline interlayer introduced between a porous...
-
Metabolic Profiles of New Unsymmetrical Bisacridine Antitumor Agents in Electrochemical and Enzymatic Noncellular Systems and in Tumor Cells
PublikacjaNew unsymmetrical bisacridines (UAs) demonstrated high activity not only against a set of tumor cell lines but also against human tumor xenografts in nude mice. Representative UA compounds, named C-2028, C-2045 and C-2053, were characterized in respect to their physicochemical properties and the following studies aimed to elucidate the role of metabolic transformations in UAs action. We demonstrated with phase I and phase II enzymes...
-
Electrochemical properties of porous Sr0.86Ti0.65Fe0.35O3 oxygen electrodes in solid oxide cells: Impedance study of symmetrical electrodes
PublikacjaThis work evaluates porous Sr0.86Ti0.65Fe0.35O3 (STF35) as a possible oxygen electrode material for Solid Oxide Cells. The powder synthesis was performed by solid state method. Characterization included DC electrical conductivity study of sintered bulk samples and impedance spectroscopy study of symmetrical electrodes deposited on gadolinium doped ceria substrates. Measurements were carried out in atmospheres with different pO2...
-
Electrochemical simulation of metabolism for antitumor-active imidazoacridinone C-1311 and in silico prediction of drug metabolic reactions
PublikacjaThe metabolism of antitumor-active 5-diethylaminoethylamino-8-hydroxyimidazoacridinone (C-1311) has been investigated widely over the last decade but some aspects of molecular mechanisms of its metabolic transformation are still not explained. In the current work, we have reported a direct and rapid analytical tool for better prediction of C-1311 metabolism which is based on electrochemistry (EC) coupled on-line with electrospray...
-
Study on Combined Optical and Electrochemical Analysis Using Indium-tin-oxide-coated Optical Fiber Sensor
PublikacjaThe growing needs for fast and reliable sensing devices stimulate development of new technological solutions. In this work a new multi-domain sensing method is demonstrated where optical sensing device has been applied to enhance amount of data received during electrochemical analysis. Thin, optically transparent, high-refractive-index, and electrically conductive indium tin oxide (ITO) film was deposited using magnetron sputtering...
-
Kinetics of the Organic Compounds and Ammonium Nitrogen Electrochemical Oxidation in Landfill Leachates at Boron-Doped Diamond Anodes
PublikacjaElectrochemical oxidation (EO) of organic compounds and ammonium in the complex matrix of landfill leachates (LLs) was investigated using three different boron-doped diamond electrodes produced on silicon substrate (BDD/Si)(levels of boron doping [B]/[C] = 500, 10,000, and 15,000 ppm—0.5 k; 10 k, and 15 k, respectively) during 8-h tests. The LLs were collected from an old landfill in the Pomerania region (Northern Poland) and were...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,1 V at 420 mA. Sample 103.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,1 V and discharged to 10 mV by constant current 420 mA. Sample 103. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 732 mA. Sample J51.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 732 mA. Sample J51.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 366 mA. Sample J51.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 366 mA. Sample J51.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,2 V at 420 mA. Sample 103.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,2 V and discharged to 10 mV by constant current 420 mA. Sample 103. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 534 mA. Sample J52.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 534 mA. Sample J52. The period of images is 30 minutes in order to observe slow temperature fluctuations. The images were taken with thermographic...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,8 V at 420 mA. Sample 103.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,8 V and discharged to 10 mV by constant current 420 mA. Sample 103. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 1098 mA. Sample J51.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 1098 mA. Sample J51.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 480 mA. Sample 103.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 480 mA. Sample 103. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 915 mA. Sample J51.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 915 mA. Sample J51.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 108 mA. Sample J51.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 108 mA. Sample J51.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 549 mA. Sample J51.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 549 mA. Sample J51.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,5 V at 420 mA. Sample 103.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,5 V and discharged to 10 mV by constant current 420 mA. Sample 103. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,0 V at 250 mA. Sample 24.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,0 V and discharged to 10 mV by constant current 250 mA. Last experiment with sample 24The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,5 V at 180 mA. Sample 24
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,5 V and discharged to 10 mV by constant current 180 mA. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission....
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 80 mA. Sample 41.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 80 mA. Sample 41.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,5 V at 241 mA. Sample 24
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,5 V and discharged to 10 mV by constant current 241 mA. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission....
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,5 V at 80 mA. Sample 24
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,5 V and discharged to 10 mV by constant current 80 mA. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission....
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,5 V at 301 mA. Sample 24
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,5 V and discharged to 10 mV by constant current 301 mA. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission....
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 160 mA. Sample 41.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 160 mA. Sample 41.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,5 V at 120 mA. Sample 24
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,5 V and discharged to 10 mV by constant current 120 mA. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission....
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 112 mA. Sample 71.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 112 mA. Sample 71.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 108 mA. Sample 61.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 108 mA. Sample 61.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 135 mA. Sample 61.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 135 mA. Sample 61.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,4 V at 562 mA. Sample 71.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,4 V and discharged to 10 mV by constant current 562 mA. Sample 71.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
-
Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 240 mA. Sample 42.
Dane BadawczeDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 240 mA. Sample 42.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...