Univerzita Karlova V Praze

Univerzita Karlova

Vladimir Matolin

Peter Kus

Yurii Yakovlev

Method of manufacturing of a membrane with surface fiber structure, in particular for use in an electrolyzer or fuel cell, by inserting the polymer membrane into the vacuum chamber equipped with a magnetron sputtering system with a cerium oxide target in which an atmosphere of Oand inert gas is formed and igniting the plasma which leads to simultaneous plasma etching of the membrane surface and deposition of cerium oxide onto the surface of etched membrane resulting in formation of fibers. The membrane is made of polymer and on at least one of its sides features porous surface made of fibers, the cross-sectional dimensions of which are lower than their length and which are integral and inseparable part of membrane body.

Method of manufacturing of a membrane with surface fibre structure, membrane manufactured by this method and use of such membrane

A method for preparing oxidation catalyst comprising cerium oxide and a metal selected from the group consisting of gold, platinum palladium, tin, ruthenium, or nickel by sputtering cerium oxide and a metal from a target to a substrate wherein the cerium oxide and a metal material are sputtered to the substrate concurrently from at least one target under an argon atmosphere to form a layer of cerium oxide including dispersed atoms of the metal Specific Au&#x2014;CeOand Pt&#x2014;CeOcatalysts are prepared by using this method.

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Zdiby, Czechia

Vladimir Matolin