A high-pressure-induced dense CO overlayer on a Pt(111) surface: a chemical analysis using in situ near ambient pressure XPS
Ryo ToyoshimaMasaaki YoshidaYuji MonyaKazuma SuzukiKenta AmemiyaKazuhiko MaseBongjin Simon MunHiroshi Kondoh
Abstract
We investigated the high-density CO adsorption phase formed on a Pt(111) surface when exposed to CO gas of pressure ranging from UHV to 100 mTorr using near-ambient-pressure (NAP)-XPS. Combined results from the NAP-XPS measurements and DFT calculations reveal the adsorption structure of CO molecules in the dense CO overlayer, which is stable under realistic conditions.
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