The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
New single-polymer electroluminescent system containing three individual emission species of polyfluorenes as a blue host, 2,1,3-benzothiadiazole unit as a green dopant and phenylene derivative unit as a red dopant on the main chain were synthesized and characterized. All polymerizations were carried out by palladium(0) catalyzed Suzuki coupling reaction with equivalent molar ratio of the diboronic...
Substituted polythiophenes and polycarbazoles are materials of great interest as charge-carrier transport materials and have been utilized in PLED and FET applications. The layer-by-layer (LbL) self assembly has been used to fabricate polymer thin films on any substrates. The multilayer polymer thin films are constructed by alternating adsorption of anionic and cationic polymers. Polyelectrolyte multilayer...
Tin dioxide nanoparticles were synthesized by precipitation coupling with thermal decomposition methods. The Broussonetia papyrifera (L.) Vent pulp was used as the dispersant. Tin chloride pentrahydrate (SnCl4.5H2O) and ammonium hydroxide (NH4OH) were used as starting materials to complete the chemical reaction. The precipitate was filtered, washed with deionized water, dried at 80°C for 24h and calcined...
In this research, cerium oxide (CeO2) nanoparticles were synthesized by the homogeneous precipitation. Cerium nitrate hexahydrate and ammonia solution were used as precursors. A mixture of water and ethylene glycol was used as solvent. The ratio of ethylene glycol /water mixed solvent was 80% by volume of ethylene glycol. Pure CeO2 nanoparticles were yellow powder. Particle size was found to be in...
The flame-made (5/5) pure ZnO and WO3-doped ZnO nanoparticles containing 0.25, 0.50, and 0.75 mol% of WO3 were successfully synthesized by flame spray pyrolysis (FSP). These materials were studied for NO2, CO and H2 gas sensing at different gas concentrations and operating temperatures ranging from 300-400??C in dry air. The crystalline phase, morphology and size of the nanoparticles were characterized...
The surface plasmon resonance immunosensor based on carboxylated polyaniline was constructed in this study. The carboxylated polyaniline, poly(3-aminobenzoic acid) (PABA), was prepared by electropolymerization of its monomer, aminobenzoic acid (ABA), on a gold electrode. The kinetic property during the electropolymerization was in-situ monitored with electrochemical surface plasmon resonance spectroscopy...
Carbon nanotubes (CNTs) have been extensively interested due to their unique mechanical and electrical properties. Owning to their outstanding electronic, thermal, structural properties, chemical stability, low density, high mechanical strength, large surface area, high modulus and high conductivity, CNTs are desired for a broad range of applications in many fields such as energy storage, molecular...
Flame spray pyrolysis (FSP) was employed to synthesize the pure ZnO and palladium (Pd)-doped ZnO nanoparticles containing 0.25, 0.50, 0.75 and 1.0 mol% Pd. Pd is one of the most versatile and most widely applied as catalytic metal. Precursor solutions of zinc naphthenate and palladium (II) acetylacetonate were sprayed and combusted, resulting in crystalline and nanostructured particles. The crystalline...
ZnO nanoparticles were synthesized by flame spray pyrolysis (FSP) using zinc naphthenate as a precursor dissolved in toluene/acetonitrile (80/20 vol%). The particle properties were analyzed by XRD, BET, and HR-TEM. The sensing films were produced by mixing the particles into an organic paste composed of terpineol and ethyl cellulose as the vehicle binder and were fabricated by doctor-blade technique...
Transition metal ion (V, Fe, or Cu) doped TiO2 nanoparticles were synthesized from titanium tetraisopropoxide (TTIP) in absolute ethanol by the modified sol-gel method. The precursor of the transition metal to be doped was added to an alcoholic solution containing TTIP. This solution was loaded into a pouch type cellophane membrane and placed in a clear solution containing 1:1 (v/v) ratio of absolute...
Nano-sized Fe-doped TiO2 samples with different amounts of iron dopant (1.0-10.0 at.%) were synthesized from titanium tetraisopropoxide (TTIP) in absolute ethanol by the modified sol-gel method. The precursor of the iron nitrate (Fe(NO3)3middot9H2O) to be doped was added to an alcoholic solution containing TTIP. This solution was loaded into a pouch type cellophane membrane and placed in a clear solution...
ZnO nanoparticles were produced by FSP using zinc naphthenate as a precursor dissolved in toluene/acetonitrile (80/20 vol%). The phase and crystallite size were analyzed by X-ray diffraction (XRD), and the specific surface area (SSA) of the nanoparticles was measured by nitrogen adsorption (BET analysis). The ZnO particle size and morphologies was further investigated by transmission electron microscopy...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.