No (264)
Yes (3)
Number of found documents:
267
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Electrochemical carbon study part I:enviromental SEM view
Vognar, J.; Dvořák, P.; Černoch, P.; Novák, V.; Vondrák, Jiří; Sedlaříková, M.
2008 - English
Graphite and amporfous carbon ( carbon black) structure is widely used as electrode material for batteries, fuel cells and supercapacitors. In this paper SEM study assortment of carbon samples was accomplished. Studium elektrochemie uhlíku, část I: pohled pomocí SEM.
Keywords:
fuel cells
Available at various institutes of the ASCR
Electrochemical carbon study part I:enviromental SEM view
Graphite and amporfous carbon ( carbon black) structure is widely used as electrode material for batteries, fuel cells and supercapacitors. In this paper SEM study assortment of carbon samples was ...
Proton conductive polymer gel electrolytes based on methacrylates
Reiter, Jakub; Velická, Jana; Míka, M.
2007 - English
New, proton conductive electrolytes based on methacrylates and phosphoric acid were prepared. These aprotic electrolytes exhibit conductivity up to 0.1 mS/cm and they were also characterised using voltammetrical and thermogravimetrical methods. Byly připraveny protonově vodivé elektrolyty na bázi methakrylátů a kyseliny fosforečné. Tito nové aprotické elektrolyty vykazují vodivost až 0.1 mS/cm a byly též charakterizovány pomocí voltametrických a termogravimetrických metod.
Keywords:
polymer gel electrolytes; solid and polymeric conductors
Available at various institutes of the ASCR
Proton conductive polymer gel electrolytes based on methacrylates
New, proton conductive electrolytes based on methacrylates and phosphoric acid were prepared. These aprotic electrolytes exhibit conductivity up to 0.1 mS/cm and they were also characterised using ...
Analysis of energetic performance of glass melting processes as a basiss for advanced glass production
Němec, Lubomír; Jebavá, Marcela
2007 - English
The glass producers face frequently problems of glass quality, energy consumption, investements into technology and environmental damages. Výrobci skla mají často problém s kvalitou skla, spotřebou energie a investicemi do technologie.
Keywords:
glass melting
Available at various institutes of the ASCR
Analysis of energetic performance of glass melting processes as a basiss for advanced glass production
The glass producers face frequently problems of glass quality, energy consumption, investements into technology and environmental damages....
Catalysts for positive electrode of fuel cells
Novák, V.; Brudná, S.; Vognar, J.; Barath, P.; Vondrák, Jiří; Sedlaříková, M.; Kazelle, J.
2007 - English
The fuel cells belongs to group of derivaces in which is internal energy of the fuel changed into the electrical energy.The electrochemical reaction is representanted by marked peak in half wave potential area.By that method can be found out activity of the electrode which determine potential of inflection point or potential of half-wave. Palivový článek patří do skupiny ve které je termodynamická energie paliva měněna na energii elektrickou.
Keywords:
fuel cells
Available at various institutes of the ASCR
Catalysts for positive electrode of fuel cells
The fuel cells belongs to group of derivaces in which is internal energy of the fuel changed into the electrical energy.The electrochemical reaction is representanted by marked peak in half wave ...
The influence of glass flow chracter on bubble removal in horizontal chancels
Cincibusová, P.; Němec, Lubomír; Jebavá, Marcela
2007 - English
This paper deals with removal of single bubbles in horizontal channels with different character of glass flow. Vliv proudění skloviny v horizontálním kanálu.
Keywords:
glass melt; growing bubble; fining channel
Available at various institutes of the ASCR
The influence of glass flow chracter on bubble removal in horizontal chancels
This paper deals with removal of single bubbles in horizontal channels with different character of glass flow.
Vliv proudění skloviny v horizontálním kanálu.
Methacrylate-based polymer electrolytes for electrochromic devices
Krejza, O.; Reiter, Jakub; Vondrák, Jiří
2007 - English
Poly(ethyl methacrylate) and poly(2-ethoxyethylmethacrylate) polymer electrolytes with embedded aprotic solvents (carbonates) and lithium perchlorate and lithium bis(oxalato)borate were tested in electrochromic devices and lithium-ion batteries. Byly připraveny polymerní elektrolyty na bázi poly(ethyl methakrylátu) a poly(2-ethoxyethyl methakrylátu) s ukotvenými roztoky lithných solí v aprotických rozpouštědlech (karbonáty) a testovány v elektrochromních zařízeních a lithno-iontových bateriích.
Keywords:
lithium-ion batteries
Available at various institutes of the ASCR
Methacrylate-based polymer electrolytes for electrochromic devices
Poly(ethyl methacrylate) and poly(2-ethoxyethylmethacrylate) polymer electrolytes with embedded aprotic solvents (carbonates) and lithium perchlorate and lithium bis(oxalato)borate were tested in ...
MnO2 studied by EQGM
Špičák, P.; Svoboda, V.; Sedlaříková, M.; Vondrák, Jiří; Kazelle, J.
2007 - English
Mass changes of electrodes containing MnO2 during charging and discharging processes were studied using QCMB techniques. The process is accompanied by reversible uptake of water and insertion of H3O+ insted of H+ should be expected. Pomocí QCMB byly studovány změny hmotnosti při nabíjení a vybíjení elektrod obsahujících MnO2. Redukce těchto elektrod je provázena vratnou sorbcí vody a lze předpokládat, že probíhá jako inserce iontů H3O+ a nikoli protonů H+.
Keywords:
EQCM
Available at various institutes of the ASCR
MnO2 studied by EQGM
Mass changes of electrodes containing MnO2 during charging and discharging processes were studied using QCMB techniques. The process is accompanied by reversible uptake of water and insertion of H3O+ ...
Progress in research of aprotic gel polymer electrolytes in Czechia
Vondrák, Jiří; Sedlaříková, M.; Krejza, O.; Velická, Jana
2007 - English
The progress of research of gel polymer electrolytes based on polymethacrylates and propylene carbonate is described. The electric conductivity and selected electrochemical processes in them is the main research field. Přehled výzkumu polymerních gelových elektrolytů. Studovány jsou elektrolyty na bázi polymerních methakrylátů a propylenkarbonátu především z hlediska elektrické vodivosti a vybraných elektrochemických procesů.
Keywords:
solid and polymeric conductors
Available at various institutes of the ASCR
Progress in research of aprotic gel polymer electrolytes in Czechia
The progress of research of gel polymer electrolytes based on polymethacrylates and propylene carbonate is described. The electric conductivity and selected electrochemical processes in them is the ...
Graphite electrode for Li-ion batteries
Makovička, J.; Sedlaříková, M.; Vondrák, Jiří
2007 - English
The results illustrate that the expanded graphote is a promising candidate for Li-ion batteries but irreversible capacity in the cycle has to be decreased. Grafitové elektrody jsou perspektivní pro Li-iontové články.
Keywords:
Li-ion batteries
Available at various institutes of the ASCR
Graphite electrode for Li-ion batteries
The results illustrate that the expanded graphote is a promising candidate for Li-ion batteries but irreversible capacity in the cycle has to be decreased....
Nanotubes as admixture for positive electrode in Li-ion batteries
Sysel, M.; Makovička, J.; Sedlaříková, M.; Vondrák, Jiří
2007 - English
Active mass for positive electrode of Li-ion batteries should be improved by carbon particles for enhancement of electrical conductivity. Carbon nanotubes were tested for this purpose. Aktivní hmota pro kladnou elektrodu Li-iontové baterie se zlepšuje přídavkem uhlíkových částic s cílem zvýšení elektronové vodivosti. K tomuto účelu byly zkoušeny uhlíkové nanotrubice.
Keywords:
Li-ion batteries
Available at various institutes of the ASCR
Nanotubes as admixture for positive electrode in Li-ion batteries
Active mass for positive electrode of Li-ion batteries should be improved by carbon particles for enhancement of electrical conductivity. Carbon nanotubes were tested for this purpose....
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