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Search results for: Titanium oxide film
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Covalent conjugation of graphene oxide with methotrexate and its antitumor activity
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Facile synthesis and properties of iron oxide spheres coated with carbon
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Reduced graphene oxide and inorganic nanoparticles composites – synthesis and characterization
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Oxide catalysts for carbon nanotube and few layer graphene formation
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On the graphitisation role of oxide supports in carbon nanotube CVD synthesis
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Oxide nanoparticle exsolution in Lu-doped (Ba,La)CoO3
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Electron scattering by trimethylene oxide, c-(CH2)3O, molecules
PublicationZmierzono całkowity przekrój czynny na rozproszenie elektronów na drobinach c-(CH2)3O w zakresie energii 1 - 400 eV. Wyniki porównano z elastycznymi i jonizacyjnymi przekrojami czynnymi obliczonymi dla tej drobiny. Przedyskutowano energetyczną zależność całkowitego przekroju czynnego na rozproszenie dla rodziny eterów cyklicznych (CH2)nO, n=2-4.
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Single chamber solid oxide fuel cell - investigation of cathodes
PublicationSporo uwagi w ostatnim okresie przykuwają jednokomorowe ogniwa w związku z potencjalnym uroszczeniem konstrukcji w porównaniu z konwencjonalnymi ogniwami. W pracy zbadano wpływ warunków syntezy różnych materiałów katodowych na wydajność ogniw. Ogniwa zbudowane zostały z typowych materiałow stosowanych na ogniwa: stabilizowanego tleneku cyrkonu jako elektrolit, cermetu niklowego jako anody oraz samaru kobaltanu domieszkowanego strontem,...
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Hydration phase diagram for sodium cobalt oxide NaxCoO2*yH2O
PublicationPrzedstawiony został diagram fazowy uwodnionego, sodowo kobaltowego związku tlenkowego Na0.3CoO2*yH2O. Diagram powstał w oparciu o zależność stopnia uwodnienia (y) od wilgotności względnej w temperaturze pokojowej. Zaobserwowano trzy fazy: y = 0, 0.6 i 0.13. Zauważono histerezę przy zamianie kierunku procesu uwadniania.
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Low-temperature processed anode for Solid Oxide Fuel Cells
PublicationPrzygotowano i przebadano kompozytową anode Ni/YSZ, która została przygotowana z wykorzystaniem technologii net shape. Wyniki potwierdziły, że kompozyt może być wykorzystany jako potencjalna anoda w tlenkowych ogniwach paliwowych.
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Effects of the time and temperature on the oxide scale formed on the cobalt alloys
PublicationWarstwy wykonane za pomocą techniki PTA ze stopu kobaltu poddano utlenianiu w różnych temperaturach i w różnym czasie. Mikrostruktury otrzymane po utlenianiu wskazują na proces degradacji materiału. Proces ten prowadził do degradacji obszarów międzydendrytycznych napoiny. Skład chemiczny powstającej zgorzeliny byłzależny od temperatury utleniania, składu chemicznego stopu, ze szczegfólnym uwzględnieniem obecności małych ilości...
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Metal Supported Solid Oxide Fuel Cells - Selected Aspects
PublicationW artykule przedstawiono wyniki badań nad tlenkowymi ogniwami paliwowymi zbudowanymi na stalowym interkonektorze.
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Fabrication and characterization of anode supported solid oxide fuel cells
PublicationW tej pracy, napylanie aerozolowe zawiesiny proszków jest oceniane jako metoda osadzania cienkich elektrolitów tlenkowych ogniw paliwowych. Metoda ta jest tania, prosta i mam zalety w stosunku do szeroko stosowanej metody sitodruku. Wpływ parametrów osadzania: stężenie zawiesiny, ciśnienie robocze są w artykule omawiane.
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Hydration phase diagram for sodium cobalt oxide Na0.3CoO2·yH2O
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Solid oxide fuel cells with Ni-infiltrated perovskite anode
PublicationWytworzono próbki na bazie tytanianu strontu domieszkowanego niobem i przebadano wpływ nasączania niklem na właściwości tych materiałów.
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NMR dispersion studies of poly(ethylene oxide)/sodium montmorillonitenanocomposites
PublicationPraca prezentuje wyniki badań dotyczące struktury nanokompozytów opartych na matrycy poli(tlenku etylenu) zawierającej montmorylonit sodowy. Układy zawierające PEO/MMT scharakteryzowano metodami NMR (Fast Field Cycling NMR), DSC oraz XRD.
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Removal of lead ions from wastewater using lanthanum sulfide nanoparticle decorated over magnetic graphene oxide
PublicationIn this study, the new lanthanum sulfide nanoparticle (La2S3) was synthesized and incorporated onto magnetic graphene oxide (MGO) sheets surface to produce potential adsorbent (MGO@LaS) for efficient removal of lead ions (Pb2+) from wastewater. The synthesized MGO@LaS adsorbent was characterized using Fourier transform infrared spectroscopy, field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy. The...
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Investigating COVID-19 active pharmaceutical ingredients (APIs) degradation using Peroxydisulfate/FeMnOx binary metal oxide/Ultrasound System
PublicationDegradation of Favipiravir using a hybrid system of peroxydisulfate, FeMnOx binary metal oxide, and ultrasound irradiation was studied. A novel catalyst was synthesized with deep eutectic solvent (DES). The effects of DES type on catalytic performance was evaluated and the catalysts were characterized using XRD, SEM, BET, XPS, and EDS. DES-based catalysts exhibited higher efficiency due to structure change, surface area enhancement...
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Attaching an alkali metal atom to an alkaline earth metal oxide (BeO, MgO, or CaO) yields a triatomic metal oxide with reduced ionization potential and redirected polarity
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High-performance NdSrCo2O5+δ–Ce0.8Gd0.2O2-δ composite cathodes for electrolyte-supported microtubular solid oxide fuel cells
PublicationNdSrCo2O5+δ (NSCO) is a perovskite with an electrical conductivity of 1551.3 S cm−1 at 500 °C and 921.7 S cm−1 at 800 °C and has a metal-like temperature dependence. This perovskite is used as the cathode material for Ce0.8Gd0.2O2-δ (GDC)-supported microtubular solid oxide fuel cells (MT-SOFCs). The MT-SOFCs fabricated in this study consist of a bilayer anode, comprising a NiO–GDC composite layer and a NiO layer, and a NSCO–GDC...
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Effects of thermal history on the performance of low-temperature solid oxide fuel cells with Sm0.2Ce0.8O2-δ electrolyte and LiNi0.81Co0.15Al0.04O2 electrodes
PublicationIn this study, low-temperature solid oxide fuel cells with an ∼560 μm thick Sm0.2Ce0.8O2−δ (SDC) electrolyte and ∼890 μm thick LiNi0.81Co0.15Al0.04O2−δ (NCAL) electrodes are constructed and characterized under three experimental conditions. The cell with an NCAL cathode pre-reduced under an H2 atmosphere at 550 °C presents the best electrochemical performance. This is ascribed to facts that the reduction reaction generating Ni–Co...
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Preliminary study towards photoactivity enhancement using a biocompatible titanium dioxide/carbon nanotubes composite
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Influence of the Titanium Content in the Ti-MCM-41 Catalyst on the Course of the α-Pinene Isomerization Process
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Wettability of DPPC Monolayers Deposited from the Titanium Dioxide–Chitosan–Hyaluronic Acid Subphases on Glass
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The Luminescence of 1,8-Diazafluoren-9-One/Titanium Dioxide Composite Thin Films for Optical Application
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Synthesis and characterization of mechanically alloyed nanostructured ternary titanium based alloy for bio-medical applications
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A spectroscopic study into the decomposition process of titanium isopropoxide in the nitrogen–hydrogen 100kHz low-pressure plasma
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Biological effect of hydrothermally synthesized silica nanoparticles within crystalline hydroxyapatite coatings for titanium implants
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Evaluation of drawability of tailor-welded blanks made of titanium alloys Grade 2 || Grade 5
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Susceptibility to biofilm formation on 3D-printed titanium fixation plates used in the mandible: a preliminary study
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Comparison of Gold Nanoparticles Deposition Methods and Their Influence on Electrochemical and Adsorption Properties of Titanium Dioxide Nanotubes
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Hetero-junction composed of poly(3,4-ethylenedioxythiophene) with poly(styrenesulphonate) and iodine doped titanium dioxide
PublicationPraca prezentuje nowe objętościowe heterozłacze typu p-n, gdzie domieszkowany jodem ditlenek tytanu (I-TiO2) pełni rolę elementu n, a poli(3,4-etylenodioksytiofen):poli(etylenosulfonian)(pEDOT:PSS)rolę elementu p. Heterozłącze zostało otrzymane na drodze potencjostatycznej polimeryzacji monomeru w obecnosci nanoproszku I-TiO2 zawieszonego w elektrolicie. Metoda pozwala na otrzymanie warstw hybrydowych, gdzie cząstki I-TiO2 są wbudowane...
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Laser-assisted modification of titanium dioxide nanotubes in a tilted mode as surface modification and patterning strategy
PublicationElectrochemical anodization is regarded as a facile and easily scalable fabrication method of titania nanotubes (TiO2NTs). However, due to the extended duration of calcination and further modifications, much faster alternatives are highly required. As a response to growing interest in laser modification of nanotube arrays, a comprehensive investigation of pulsed-laser irradiation and its effect onto TiO2NT properties has been carried out....
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Carboxymethyl Starch/Medium Chain Fatty Acid Compositions: Rheological Changes During Storage and Selected Film Properties
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Magnetic, Structural and Spectroscopic Properties of Iron(II)-Octacyanoniobate(IV) Crystalline Film Obtained by Ion-Exchange Synthesis
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PEDOT(PSS) as Solid Contact for Ion-Selective Electrodes: The Influence of the PEDOT(PSS) Film Thickness on the Equilibration Times
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Modeling and experimental investigation of the hydraulic jump in liquid film formed by an impinging two-phase air-water jet
PublicationPrzedstawiono model analityczny układu hydraulicznego powstałego na skutek uderzenia strugi dwufazowej wody i powietrza. Obliczenia porównano z badaniami eksperymentalnymi przeprowadzonymi na własnym stanowisku badawczym. Uzyskano zadowalającą zgodność.
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New trim configurations for laser trimmed thick-film resistors - theoretical analysis, numerical simulation and experimential verification
PublicationW pracy przedstawiono nowe podejście do korekcji rezystorów warstwowych polegające na wytwarzaniu dodatkowego kontaktu w celu rozszerzenia zakresu korekcji i uproszczenia projektowania. Ponadto zaprezentowano nową szybką metodę wyznaczania charakterystyk korekcyjnych a także weryfikację eksperymentalną. Przedstawiono wyniki w postaci zakresów korekcji i względnych przyrostów rezystancji w funkcji kształtu dodatkowego kontaktu oraz...
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Morphology control via dual solvent crystallization for high-mobility functionalized pentacene-blend thin film transistors
PublicationWe present an approach to improving the performance of solution processed organic semiconductor transistors based on a dual solvent system. We here apply this to a blend containing the π-conjugated small molecule 6,13 bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene) and polystyrene, which acts as an inert binder. Using a semiconductor-binder solution of two solvents, where the main solvent is a better solvent of the small...
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Opto-Electrochemical Sensing Device Based on Long-Period Grating Coated with Boron-Doped Diamond Thin Film
PublicationThe fabrication process of thin boron-doped nanocrystalline diamond (B-NCD) microelectrodes on fused silica single mode optical fiber cladding has been investigated. The B-NCD films were deposited on the fibers using Microwave Plasma Assisted Chemical Vapor Deposition (MW PA CVD) at glass substrate temperature of 475 ºC. We have obtained homogenous, continuous and polycrystalline surface morphology with high sp3 content in B-NCD...
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Tribo-Environment Dependent Chemical Modification of Sliding Interfaces in Ultrananocrystalline Diamond Nanowall Film: A Correlation with Friction and Wear
PublicationTribological properties of ultrananocrystalline diamond nanowall (UNCD NW) films were investigated quantitatively in three different and controlled tribo-environmental conditions, proposing the passivation and graphitization mechanisms. However, these mechanisms are rather complicated and possibly can be understood in well-controlled tribological conditions. It was shown that the friction and wear of these films were high in highPage 1...
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Mechanical properties of cement pastes containing pristine and silica-coated bismuth oxide (Bi2O3) and gadolinium oxide (Gd2O3) structures
Open Research DataExcel file containing raw mechanical (compressive strength) data of cement pastes containing variable amount of Bi2O3, Gd2O3, Bi2O3-SiO2 and Gd2O3-SiO2 structures. Sample designation in the Excel file is in line with sample designation in the manuscript associated with dataset.
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Application of a hybrid mechanistic/machine learning model for prediction of nitrous oxide (N2O) production in a nitrifying sequencing batch reactor
PublicationNitrous oxide (N2O) is a key parameter for evaluating the greenhouse gas emissions from wastewater treatment plants. In this study, a new method for predicting liquid N2O production during nitrification was developed based on a mechanistic model and machine learning (ML) algorithm. The mechanistic model was first used for simulation of two 15-day experimental trials in a nitrifying sequencing batch reactor. Then, model predictions...
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The hydration properties of protein stabilizer, trimethylamine-N-oxide in aqueous solutions of N-methylacetamide – The volumetric and compressibility studies between 288.15 and 308.15 K
PublicationApparent molar volumes and apparent molar isentropic compressions of the protein stabilizer, trimethylamine-N-oxide (TMAO) were determined from the densities and speed of sound measured at T = (288.15, 298.15 and 308.15) K in aqueous solutions of N-methylacetamide (NMA) at four different concentrations (2, 4, 6 and 8 mol/kg). The concentration dependencies of the calculated quantities extrapolated to the infinite dilution lead...
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Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction
PublicationIn this work, the specific role of the addition of graphene oxide (GO) to state-of-the-art nickel–iron (NiFe) and cobalt–nickel–iron (CoNiFe) mixed oxides/hydroxides towards the oxygen evolution reaction (OER) is investigated. Morphology, structure, and OER catalytic activity of the catalysts with and without GO were studied. The catalysts were fabricated via a two-step electrodeposition. The first step included the deposition...
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Nanocomposite of cement/graphene oxide – Impact on hydration kinetics and Young’s modulus
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Controlled oxidation of graphite to graphene oxide with novel oxidants in a bulk scale
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Photocatalytic properties of Nafion membranes containing graphene oxide/titania nanocomposites
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Characterization of FeCo based catalyst for ammonia decomposition. The effect of potassium oxide
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The activity of fused-iron catalyst doped with lithium oxide for ammonia synthesis
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