Catalytic activity of gold on nanocrystalline diamond support

Miklós Veres, Elena Perevedentseva, Artashes V. Karmenyan, Sára Tóth, Margit Koós

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

A simple and easily realizable method was found for the preparation of supported Au catalyst by sputtering island type gold film onto nanocrystalline diamond particles, that can catalyse CO oxidation to CO2. The oxidation of CO molecules from ambient air was observed and investigated by spectroscopic methods. Characteristic CO peaks of molecules adsorbed on gold surface and an increased intensity of the CO2 bands were detected, indicating the catalyst effect of the Au film. The catalytic efficiency was found to be dependent on the morphology of the deposited gold layer. Our measurements indicate also that CO molecules could adsorb permanently on active Au sites, leading to lowered activity of the catalyst.

Original languageEnglish
Pages (from-to)1211-1214
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume7
Issue number3-4
DOIs
Publication statusPublished - May 27 2010
Event23rd International Conference on Amorphous and Nanocrystalline Semiconductors, ICANS23 - Utrecht, Netherlands
Duration: Aug 23 2009Aug 28 2009

ASJC Scopus subject areas

  • Condensed Matter Physics

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