Supporting Information
Oscillatory behavior during the catalytic partial oxidation of methane: Following dynamic structural changes of palladium using the QEXAFS technique Jan Stötzela, Ronald Frahma, Bertram Kimmerleb, Maarten Nachtegaalc and Jan-Dierk Grunwaldtd,e a
Fachbereich C – Physik, Bergische Universität Wuppertal, Gaußstr. 20, D-42097 Wuppertal, Germany b
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d
Gutenbergstr. 35, CH-3011 Bern
Paul-Scherrer-Institut (PSI), CH-5232 Villigen, Switzerland
Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, D-76128 Karlsruhe, Germany
e
Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800 Kgs. Lyngby, Denmark
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Figure S1. Extracted k3-weighted EXAFS functions in k-space: The blue and green cases are relevant to this paper as they represent the data quality leading to the EXAFS results presented in Figure 8, 9 (blue) and 12 (green).
Figure S2. LCA weights of PdO of the same data set treated with different averaging procedures: (black) averaged over 5 spectra, (red) averaged with a moving rectangular window with a width of 40 spectra and (blue) averaged with a moving gauss window with 3σ = 40 spectra. The data is taken from the same run with the FSP catalyst as Figures 1 – 3 within the paper.
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Figure S3. Intensity and position in energy of the two XANES peaks detectable above the Pd K-edge: The peaks correspond to the 1s 5p and 1s 4f electron transitions and evidence (in combination with Figure 13 in this paper) that no hydrogen is incorporated.
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