Abstract:The adsorption of CO on Ni 3 Al͑111͒ has been studied using high-resolution photoemission spectroscopy and density functional theory. Despite the fact that CO binds to Ni dominated sites only at this surface, CO adsorption induces a shifted contribution in the Al 2p core-level spectra. This contribution moves toward higher binding energy upon increasing CO coverage. The calculations give Al 2p core-level binding energy shifts in good agreement with the experimental values and show that adsorption of CO in the … Show more
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