National Repository of Grey Literature 13 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Utilization of alpha nickel hydroxide in alkaline accumulators
Máca, T. ; Nezgoda, L. ; Špachman, V. ; Vondrák, Jiří ; Sedlaříková, M. ; Barath, P. ; Vrbický, J. ; Špičák, P. ; Jirák, T.
Nickel hydroxide is used as an electrochemically active component of accumulator masses for positive electrode of Ni-Cd, Ni-MH and Ni-Zn alkaline accumulators.
Stabilization effect of magnesium aditives in nickel hydroxide
Vrbický, J. ; Vondrák, Jiří ; Sedlaříková, M.
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.
The development of electrode materials for PEM fuel cell
Kazda, T. ; Novák, V. ; Barath, Peter
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.
Conductivity of carbon materials for alternative energy sources
Tichý, J. ; Novák, V. ; Barath, Peter
Object of this work was prepared electrodes with carbon materials and investigate their electrical properties.
News concerning gel polymer electrolytes
Sedlaříková, M. ; Vondrák, Jiří ; Macalík, M.
Gel polymer electrolytes based on PMMA and aprotic solvents have been studied for a long time in our laboratory.
Electrolyzer for hydrogen production
Kunovjánek, M. ; Vondrák, Jiří ; Sedlaříková, M.
Purpose of this work was to create galvanic deposition of metals with electrocatalytic properties.
Thermal properties of sulfolane
Sedlaříková, M. ; Vondrák, Jiří ; Zatloukal, M.
The properties of CL as aprotic and highly polar solvent are promising for many applications.
Sodium used instead of lithium in the electrochromic devices
Svoboda, V. ; Kazelle, J. ; Vondrák, Jiří ; Sedlaříková, M.
The mass of thin layer can be observed by the EQCM method. This method is based on the changes of the resonance frequency of a quartz crystal resonator.
Preparation and properties of manganise dioxide studied by EQCM
Špičák, P. ; Novák, V. ; Barath, P. ; Vondrák, Jiří ; Kazelle, J.
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.

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