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	Studium elektrochemie uhlíku, část I: pohled pomocí SEM Vognar, J. ; Dvořák, P. ; Černoch, P. ; Novák, V. ; Vondrák, Jiří ; Sedlaříková, M. 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. Detailed record
	Určení rozdílů relaxačních časů T2 u PMMA gelových elektrolytů Vognar, J. ; Macalík, M. ; Špičák, P. ; Bartušek, Karel ; Novák, V. ; Vondrák, Jiří T2 relaxation is complex phenomenon, but at its most fundamental level, it corresponds to a decoherence of the transverse nuclear spin magnetization. Detailed record
	Různorodost PMMA-pc základních gel-elektrolitů Krejza, O. ; Špičák, P. ; Sedlaříková, M. ; Vognar, J. ; Vondrák, Jiří Heterogeneity of PMMA-pc based gel electrolytes. Detailed record
	Studium gelových elektrolytů na bázi PMMA a obsahujících ionty Na+ pomocí nukleární magnetické rezonance Vognar, J. ; Macalík, M. ; Špičák, P. ; Vondrák, Jiří ; Novák, V. ; Krejza, O. ; Bartušek, Karel Mixture of liquid MMA and PC displays significantly longer relaxation times T1 and T2 than clear solution of NaClO4 in PC. Possibly reason is that the presence of MMA release solvatation of ions Na+ by propylencarbonate. Detailed record
	Kinetické vlastnosti kladných elektrod se základem MnO2 s různými dopujícími přísadami Vognar, J. ; Brudná, S. ; Novák, V. ; Vondrák, Jiří ; Sedlaříková, M. The present study aims at evaluating the activity of such manganise oxide-based electrocatalysts toward the ORR. Electrochemical measurement was realized by method of cyclic voltametry on RDE in three electrodes circuit. Detailed record
	Katalyzátory kladných elektrod palivových článků Novák, V. ; Brudná, S. ; Vognar, J. ; Barath, P. ; Vondrák, Jiří ; Sedlaříková, M. ; Kazelle, J. 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. Detailed record
	Katalyzátory pro palivové články Bílek, J. ; Dokoupil, A. ; Vognar, J. ; Vondrák, Jiří ; Novák, V. New catalysts for alkaline fuel cells were prepared – composite materials carbon-nickel and carbon-platinum with different kinds of carbon. Detailed record

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