Chinese Journal of Catalysis

Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (2): 255-259.DOI: 10.1016/S1872-2067(12)60747-5

• Research papers • Previous Articles     Next Articles

Low temperature adsorption of CO on modified, vicinal Cu(100) surfaces：A comparative study

Przemys?aw Jan Godowskia, Jens Onsgaardb   

  1. a Institute of Experimental Physics, University of Wroc?aw, 50-204 Wroc?aw, Poland;
    b Department of Physics and Nanotechnology, University of Aalborg, DK-9220 Aalborg East, Denmark
  • Received:2013-08-26 Revised:2013-11-12 Online:2014-01-16 Published:2014-01-17
  • Contact: Przemysław Jan Godowski

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Abstract:

The experimental results of the adsorption of CO on clean and potassium-modified vicinal Cu(100) surfaces at 125 K were present. We studied three surfaces under identical experimental conditions. At 125 K, potassium forms disordered structure on vicinals and CO adsorbs only on sites not occupied by K. It was found that a small percent of the CO molecules dissociate on the stepped interfaces. The influence of steps dominates over pre-adsorbed alkali atoms at 125 K.

Key words: Carbon monoxide, Copper(100) vicinal surface, Potassium modified surface