No (264)
Yes (3)
Number of found documents:
267
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to
Preparation and photocatalytic activity of La doped TiO2 nanoparticles
Daněk, Ondřej; Štengl, Václav; Bakardjieva, Snejana; Murafa, Nataliya; Kalendová, A.
2006 - English
As-prepared TiO2 sample with 1 percent concentration of La is demonstrated the better photocatalytic activity than the Degussa P25. Příprava a fotokatalytická aktivita La dopovaná TiO2 nanočásticemi.
Keywords:
photocatalytic activity; nanoparticles
Available at various institutes of the ASCR
Preparation and photocatalytic activity of La doped TiO2 nanoparticles
As-prepared TiO2 sample with 1 percent concentration of La is demonstrated the better photocatalytic activity than the Degussa P25....
Ion exchange membranes
Barath, P.; Novák, V.; Sedlaříková, M.; Vondrák, Jiří; Kazelle, J.; Kliment, J.
2006 - English
The behaviour of a bipolar ionex membrane FUMATECh was studied in the potential range where the presence of an internal potential bariere inhibits any flow of current. Bylo studováno chování bipolární ionexové membrány FUMATECH v oblasti potenciálů, kdy existence vnitřní potenciálové bariéry brání průchodu proudu.
Keywords:
membranes
Available at various institutes of the ASCR
Ion exchange membranes
The behaviour of a bipolar ionex membrane FUMATECh was studied in the potential range where the presence of an internal potential bariere inhibits any flow of current....
Kinetics of oxygen reduction in sodium (hydroxide + borohydride ) electrolyte
Chatenet, M.; Micoud, F.; Roche, I.; Chainet, E.; Vondrák, Jiří
2006 - English
The Principle of double layer on carbon electrode has been used for the design of new components, called electrochemical supercapatitors. Popisuje se použití nových materiálů vyvinutých na UACH AV ČR pro zmíněné reakce.
Keywords:
electrolyte
Available at various institutes of the ASCR
Kinetics of oxygen reduction in sodium (hydroxide + borohydride ) electrolyte
The Principle of double layer on carbon electrode has been used for the design of new components, called electrochemical supercapatitors....
Preparation of nanoscopic mixed-metal oxides by sonolysis of M(acac)3complexes
Pinkas, J.; Zbořil, R.; Reichlová, V.; Ostrižek, P.; Bezdička, Petr
2006 - English
The presence of water in the reaction mixture was found to lower the organics content and increase the BET surface area. Fyzikální a chemické vlastnosti pokročilých materiálů a struktur Komplexní sloučeniny a oxidy přechodných kovů s využitím v bioaplikacích a nanotechnologiích.
Keywords:
mixed-metal oxides
Available at various institutes of the ASCR
Preparation of nanoscopic mixed-metal oxides by sonolysis of M(acac)3complexes
The presence of water in the reaction mixture was found to lower the organics content and increase the BET surface area....
Homogenous precipitation as an effective synthetic way to uniform metal oxide nanoparticles
Šubrt, Jan
2006 - English
Importace of nanoparticles with controlled size and shape of various chemical compositions increased markedly during last yers. Homogenní srážení jako efektivní syntetický způsob jak sjednotit nanočástice kysličníku kovu.
Keywords:
homogenous precipitation; pigments; photocatalysts
Available at various institutes of the ASCR
Homogenous precipitation as an effective synthetic way to uniform metal oxide nanoparticles
Importace of nanoparticles with controlled size and shape of various chemical compositions increased markedly during last yers....
Photoactive optically transparent titania nanoparticles incorporated in this layers
Štengl, Václav; Bakardjieva, Snejana; Murafa, Nataliya; Šubrt, Jan
2006 - English
Photoactive optically transparent titania nanoparticles incorporated in this layers. Fotoaktivní transparentní nanočástice TiO2 vestavěná v tenkých vrstvách.
Keywords:
titania nanoparticles
Available at various institutes of the ASCR
Photoactive optically transparent titania nanoparticles incorporated in this layers
Photoactive optically transparent titania nanoparticles incorporated in this layers.
Fotoaktivní transparentní nanočástice TiO2 vestavěná v tenkých vrstvách.
Ternary polymer electrolytes with 1-methylimidazole based ionic liquids and aprotic solvents
Reiter, Jakub; Vondrák, Jiří; Michálek, Jiří
2006 - English
For lithium-ion batteries and supercapacitors, acrylates, aprotic solvents and 1-methylimidazole based ionic liquids were combined to form polymer electrolytes. Their electrochemical and mechanical properties were studied. Excellent electrochemical stability (4.3 - 4.6 V) and good conductivity (1 mS/cm) was observed. Pro lithno-iontové baterie a superkondenzátory byly připraveny nové polymerní elektrolyty na bázi akrylátů a ukotvenými iontovými kapalinami na bázi 1-methylimidazolu a studovány jejich elektrochemické a mechanické vlastnosti. Byl zjištěna výborná elektrochemická stabilita (4,3 - 4,6 V) a dobrá vodivost (1 mS/cm).
Keywords:
lithium polymer electrolytes
Available at various institutes of the ASCR
Ternary polymer electrolytes with 1-methylimidazole based ionic liquids and aprotic solvents
For lithium-ion batteries and supercapacitors, acrylates, aprotic solvents and 1-methylimidazole based ionic liquids were combined to form polymer electrolytes. Their electrochemical and mechanical ...
Applications of electron paramagnetic(spin) resonance (EPR/ESR) spectroscopy in ecology
Stopka, Pavel; Křížová, Jana
2006 - English
We studied short lived reactive oxygen species by EPR spectroscopy. We have found the toxic properties some chemicals by free radical generation. Studovali jsme krátkodobě žijící reaktivní kyslíkové částice metodou EPR spektroskopie. Prokázali jsme toxicitu některých chemikálií v důsledku tvorby volných radikálů.
Keywords:
free radicals
Available at various institutes of the ASCR
Applications of electron paramagnetic(spin) resonance (EPR/ESR) spectroscopy in ecology
We studied short lived reactive oxygen species by EPR spectroscopy. We have found the toxic properties some chemicals by free radical generation....
Negative Electrodes for Lithium Batteries
Nečesal, P.; Vondrák, Jiří; Sedlaříková, M.; Novotný, M.
2005 - English
Materials based on lithium-cobalt oxide for lithium-ion batteries were electrochemically characterized. Testing mixture graphite-carbon black-lithium-cobalt oxide was optimized. Materiály na bázi oxidu kobaltito-lithného pro lithno-iontové baterie byly elektrochemicky charakterizovány. Byla optimalizována testovací směs grafit-saze-oxid kobaltito-lithný.
Keywords:
lithium-cobalt oxide; lithium-ion batteries
Available at various institutes of the ASCR
Negative Electrodes for Lithium Batteries
Materials based on lithium-cobalt oxide for lithium-ion batteries were electrochemically characterized. Testing mixture graphite-carbon black-lithium-cobalt oxide was optimized....
Alkaline Ion Exchanging Membranes in Power Sources
Barath, P.; Janík, L.; Sedlaříková, M.; Vondrák, Jiří; Novák, V.; Reiter, Jakub
2005 - English
Bipolar membranes for alkaline fuel cells were prepared and studied. Byly připraveny a studovány polymerní bipolární membrány pro alkalické palivové články.
Keywords:
Bipolar membranes; fuel cells
Available at various institutes of the ASCR
Alkaline Ion Exchanging Membranes in Power Sources
Bipolar membranes for alkaline fuel cells were prepared and studied.
Byly připraveny a studovány polymerní bipolární membrány pro alkalické palivové články.
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