Platinafémek szerepe a kobalt nano-ötvözetek kialakulására és szekezetükre

Imre Kovács

doi:10.63684/dk.2026.08.06

Imre Kovács Dunaújvárosi Egyetem, Műszaki Intézet, Gépészmérnöki Tanszék https://orcid.org/0000-0003-2014-678X

DOI: https://doi.org/10.63684/dk.2026.08.06

Keywords: Platinum metals, cobalt, XPS, EXAFS, NEXAFS

Abstract

The production of working catalysts can be made by reduction of catalytically active metal ions on the surface of support. This can be confirmed with the help of catalytic tests. During these processes the reduction of cobalt ions is not an easy task. With the addition of platinum metals cobalt can be reduced readily. The application of two metals results in a metallic alloy with an un-predictable structure. In order to characterize such nano-alloy particles besides x-ray excited photoelectron spectroscopy (XPS), EXAFS and NEXAFS methods must be used.

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