Preparation and properties of manganise dioxide studied by EQCM
Špičák, P.; Novák, V.; Barath, P.; Vondrák, Jiří; Kazelle, J.
2009 - English
We can see a steady decrease both of the depth of the changes in one cycle and the total mass of the electrode, which indicates the termination of the life of the system perhaps due to slow dissolution of manganese oxide layer in the electrolyte.
Keywords:
accumulators; EQCM
Available at various institutes of the ASCR
Preparation and properties of manganise dioxide studied by EQCM
We can see a steady decrease both of the depth of the changes in one cycle and the total mass of the electrode, which indicates the termination of the life of the system perhaps due to slow ...
Conductivity of carbon materials for alternative energy sources
Tichý, J.; Novák, V.; Barath, Peter
2009 - English
Object of this work was prepared electrodes with carbon materials and investigate their electrical properties.
Keywords:
electrodes with carbon materials
Available at various institutes of the ASCR
Conductivity of carbon materials for alternative energy sources
Object of this work was prepared electrodes with carbon materials and investigate their electrical properties.
Stabilization effect of magnesium aditives in nickel hydroxide
Vrbický, J.; Vondrák, Jiří; Sedlaříková, M.
2009 - English
The capacity and stability of magnesium substituted alpha-Ni(OH)2 were investigated. Magnesium has no effect on nickel hydroxide electrochemical capacity. The effect of magnesium on stability is very low, the magnesium improves stability a little, but not more than 10 percent. This effects are not useable in commerce production.
Keywords:
nickel hydroxide
Available at various institutes of the ASCR
Stabilization effect of magnesium aditives in nickel hydroxide
The capacity and stability of magnesium substituted alpha-Ni(OH)2 were investigated. Magnesium has no effect on nickel hydroxide electrochemical capacity. The effect of magnesium on stability is very ...
Electrolyzer for hydrogen production
Kunovjánek, M.; Vondrák, Jiří; Sedlaříková, M.
2009 - English
Purpose of this work was to create galvanic deposition of metals with electrocatalytic properties.
Keywords:
electrode
Available at various institutes of the ASCR
Electrolyzer for hydrogen production
Purpose of this work was to create galvanic deposition of metals with electrocatalytic properties.
Synthesis of Ru-doped titania and its photocatalytic properties
Houšková, Vendula; Štengl, Václav; Murafa, Nataliya; Bakardjieva, Snejana
2009 - English
rystalline Mania particles doped with ruthenium oxide have been prepared by homogenous hydrolysis of TiOSO4 in aqueous solutions in the presence of thioacetamide and RuCl3 at 80 degrees C After annealing at 600 degrees C in oxygen atmosphere for 2 hours the synthesis of the Ru-doped Mania powders was complete The effects of the Ru doping on the morphology and microstructure of TiO2 nanoparticles and their impacts on the photocatalytic activity were studied The synthesized particles were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Nitrogen adsorption-desorption was used for surface area (BET) and porosity determination (BM) The photocatalytic activity of Ru-doped mania samples was determined by photocatalytic decomposition of Orange II dye in an aqueous slurry during irradiation at 365 nm and 400 nm wavelength The Ru-doped Mania samples demonstrated enhanced photocatalytic activity under UV and visible light.
Keywords:
X-ray diffraction (XRD); Scanning Electron Microscopy (SEM); Brunauer-Emmett-Teller (BET) method
Available at various institutes of the ASCR
Synthesis of Ru-doped titania and its photocatalytic properties
rystalline Mania particles doped with ruthenium oxide have been prepared by homogenous hydrolysis of TiOSO4 in aqueous solutions in the presence of thioacetamide and RuCl3 at 80 degrees C After ...
News concerning gel polymer electrolytes
Sedlaříková, M.; Vondrák, Jiří; Macalík, M.
2009 - English
Gel polymer electrolytes based on PMMA and aprotic solvents have been studied for a long time in our laboratory.
Keywords:
gel polymer electrolytes
Available at various institutes of the ASCR
News concerning gel polymer electrolytes
Gel polymer electrolytes based on PMMA and aprotic solvents have been studied for a long time in our laboratory.
The development of electrode materials for PEM fuel cell
Kazda, T.; Novák, V.; Barath, Peter
2009 - English
This work deals with creating a micture of carbon deposited platinum.Furthermore measurement of these mixtures with using the methods Impedance Spectroscopy and Linear scan voltametry and then compare the identified characteristics of follows the measured samples.
Keywords:
electrode materials
Available at various institutes of the ASCR
The development of electrode materials for PEM fuel cell
This work deals with creating a micture of carbon deposited platinum.Furthermore measurement of these mixtures with using the methods Impedance Spectroscopy and Linear scan voltametry and then compare ...
Lyotropic liquid crystals - medium for preparation of highly organised mesoporous materials
Barath, Peter; Uhlířová, Tereza; Reiter, Jakub
2009 - English
Keywords:
mesoporous materials
Available at various institutes of the ASCR
Lyotropic liquid crystals - medium for preparation of highly organised mesoporous materials
Photocatalytic niobium and tantallum doped monodispersed nanoparticles of titania for visible-ligt applications
Štengl, Václav; Houšková, Vendula; Bakardjieva, Snejana; Murafa, Nataliya
2009 - English
Niobium or tantalum doped anatase were prepared by thermal hydrolysis of peroxotitanium complex aqueous solutions dissolving niobium or tantalum peroxo-comples at 100 degrees C for 3 days The synthesized samples were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM), surface area (BET) and porosity determination (BJH) The photocatalytic activity of doped titania samples was determined by decomposition of salicylic acid during irradiation at 365 nm and 400 nm Niobium-doping caused the increase of unit cell constants of anatase and the shape change of anatase crystallites from spindle-like to cubic-like structure. The niobium and tantalum doping increases the stability of anatase to above 1000 degrees C by inhibiting the growth of Mania crystallites.
Keywords:
titania; peroxo-complexes; niobium
Available at various institutes of the ASCR
Photocatalytic niobium and tantallum doped monodispersed nanoparticles of titania for visible-ligt applications
Niobium or tantalum doped anatase were prepared by thermal hydrolysis of peroxotitanium complex aqueous solutions dissolving niobium or tantalum peroxo-comples at 100 degrees C for 3 days The ...
Microscopic and structural characterization of high velocity oxygen-flue and atmospheric plasma sprayed coatings
Murafa, Nataliya; Štengl, Václav; Ctibor, Pavel; Houšková, Vendula
2009 - English
TiO2 nano-powders were agglomerated by a spray drying process for applying to thermal spraying High Velocity Oxygen-Fuel (HVOF) and Atmospheric Plasma Spraying (APS) were used to deposit porous partially nanostructured TiO2 coatings Steel substrate was used for a coatings spraying Scanning Electron Microscopy (SEM), and X-Ray diffraction were performed to study the morphology and the crystalline phases of the titania coatings
Keywords:
powder; coating; rutile; anatase
Available at various institutes of the ASCR
Microscopic and structural characterization of high velocity oxygen-flue and atmospheric plasma sprayed coatings
TiO2 nano-powders were agglomerated by a spray drying process for applying to thermal spraying High Velocity Oxygen-Fuel (HVOF) and Atmospheric Plasma Spraying (APS) were used to deposit porous ...
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
Send your suggestions and comments to nusl@techlib.cz
Provider
Other bases