Topics in Catalysis

, Volume 61, Issue 12–13, pp 1247–1256 | Cite as

Effect of Gold on the Adsorption Properties of Acetaldehyde on Clean and h-BN Covered Rh(111) Surface

  • Arnold Péter FarkasEmail author
  • Ádám Szitás
  • Gábor Vári
  • Richárd Gubó
  • László Óvári
  • András Berkó
  • János Kiss
  • Zoltán Kónya
Original Paper


Auger electron spectroscopy, high-resolution electron energy loss spectroscopy and temperature programmed desorption methods have been used in order to investigate the adsorption properties and reactions of acetaldehyde on gold decorated rhodium and BN/Rh(111) surfaces. Scanning tunneling microscopy and X-ray photoelectron spectroscopy measurements were carried out to characterize the gold nanoparticles on clean and hexagonal boron nitride (h-BN) covered Rh(111). The adsorption of acetaldehyde was not completely hindered by gold atoms; however, depending on the structure of the outermost bimetallic layer (surface alloy) the dissociation of the parent molecule was suppressed, namely the production of carbon monoxide was inhibited by the gold domains. Our measurements with acetaldehyde on Au/h-BN/Rh(111) confirmed the observation that the lack of suitable adsorption sites eliminates the formation of CO. Nevertheless, increased coverage of gold enhanced the amount of adsorbed aldehyde at low temperature. We may predict that the low reactivity of acetaldehyde on Au/h-BN/Rh(111) significantly determine the ethanol decomposition mechanism on this surface.


Acetaldehyde Polymerization Rh(111) Boron nitride Effect of gold HREELS 



Financial support of this work by the Hungarian Research Development and Innovation Office through grants GINOP-2.3.2-15-2016-00013 and NKFIH OTKA K120115 is gratefully acknowledged. The ELI-ALPS project (GINOP-2.3.6-15-2015-00001) is supported by the European Union and co-financed by the European Regional Development Fund. This research was also supported by the European Social Fund in the framework of TÁMOP-4.2.4.A/ 2–11/1-2012-0001 ‘National Excellence Program’.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Arnold Péter Farkas
    • 1
    • 2
    Email author
  • Ádám Szitás
    • 3
  • Gábor Vári
    • 3
  • Richárd Gubó
    • 2
    • 3
  • László Óvári
    • 1
    • 2
  • András Berkó
    • 1
  • János Kiss
    • 1
    • 4
  • Zoltán Kónya
    • 1
    • 3
  1. 1.MTA-SZTE Reaction Kinetics and Surface Chemistry Research GroupUniversity of SzegedSzegedHungary
  2. 2.Extreme Light Infrastructure-ALPSELI-HU Non-profit Ltd.SzegedHungary
  3. 3.Department of Applied and Environmental ChemistryUniversity of SzegedSzegedHungary
  4. 4.Department of Physical Chemistry and Materials ScienceUniversity of SzegedSzegedHungary

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