Modification of electronic properties of Pt(111) surface by means of alloyed and adsorbed metals: DFT study |
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Authors: | I A Pašti S V Mentus |
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Institution: | (1) Faculty of Physical Chemistry, Belgrade University, Studentski trg. 12-16, P.O. Box 137, 11001 Belgrade, Serbia |
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Abstract: | Following recent tendencies to predict the electrochemical behaviour of metal surfaces by calculation methods, electronic
properties of Pt(111) surface modified by either alloying with, or adsorption of, the Sn and Bi atoms, were studied by DFT
calculations. It was shown that work function of the surface shows different type of coverage dependence in the cases of alloying
and adsorption. In addition, it was demonstrated how position of d-band center of surface Pt atoms is tuned in both of these cases, and the results were commented in terms of catalytic activities
of these surfaces toward hydrogen evolution reaction.
The article is published in the original. |
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