Quantitative surface structure determination using in situ high-energy SXRD: Surface oxide formation on Pd(100) during catalytic CO oxidation

SURFACE SCIENCE

卷:630

Article

Shipilin, Mikhail¹  Hejral, Uta^2,3  Lundgren, Edvin¹  Merte, Lindsay R.¹  Zhang, Chu¹  Stierle, Andreas^2,3  Ruett, Uta³  Gutowski, Olof³  Skoglundh, Magnus⁴  Carlsson, Per-Anders⁴  Gustafson, Johan¹ 

[1] Lund Univ, Div Synchrotron Radiat Res, Lund, Sweden

[2] Univ Hamburg, Hamburg, Germany

[3] DESY, Hamburg, Germany

[4] Chalmers Univ Technol, Competence Ctr Catalysis, S-41296 Gothenburg, Sweden

关键词: HESXRD;    SXRD;    Pd;    PdO;    CO oxidation;    Heterogeneous catalysis;   

DOI  :  10.1016/j.susc.2014.08.021

来源: Elsevier

【 摘 要 】

We have performed a quantitative structure determination of the (root 5 x root 5) R27 degrees surface oxide, formed on Pd(100) under semi-realistic conditions for catalytic CO oxidation, using in situ high-energy surface X-ray diffraction. We describe the experiment and the extraction of quantitative data in detail. The structural results are in agreement with previous reports of a system consisting of a single layer of PdO(101) formed in pure O-2 on top of Pd(100) and studied under ultra-high vacuum conditions. (C) 2014 The Authors. Published by Elsevier B.V.

【 授权许可】

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