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Reactivity of Graphene-Confined Pt(111) Surface

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Construction and Reactivity of Pt-Based Bi-component Catalytic Systems

Part of the book series: Springer Theses ((Springer Theses))

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Abstract

By employing real-time microscopic techniques, the confinement effect of single-layer graphene on the chemistry of CO/Pt(111) system is studied. We find that the CO molecules can easily intercalate between graphene and Pt(111) even under UHV condition at room temperature. Interestingly, CO desorb from the interfacial space between graphene and Pt(111) around room temperature. In contrast, the desorption temperature of CO from bare Pt(111) is ~420 K. DFT calculations show the adsorption energy of CO on Pt(111) is decreased by the confinement effect of graphene on top. Furthermore, the dynamic process of CO oxidation is also studied. We find that the graphene wrinkles act as the reaction channels for CO desorption and CO oxidation processes.

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Authors and Affiliations

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, China

    Rentao Mu

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Correspondence to Rentao Mu .

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Mu, R. (2017). Reactivity of Graphene-Confined Pt(111) Surface. In: Construction and Reactivity of Pt-Based Bi-component Catalytic Systems. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-55244-5_6

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