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However, both the measurements showing the same trend, i.e. the poisoning effects of anion adsorption were the most pronounced on Pt(111), most likely because the sulfuric or phosphoric acid anions adsorbed on the Pt(111) faces in 3-fold sites through three equivalent oxygen atoms is stronger than on other two low-index planes, where one or two oxygen atoms are involved in bonding to the surface.

ÌØ±ðÊÇÕ⼸¸öרҵÃû´ÊÔڸöÎÖÐËù´ú±íµÄÒâ˼£º
3-fold sites
three equivalent oxygen atoms
low-index planes
one or two oxygen atoms are involved in bonding to the surface

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