Figure 6
(a) Ex situ fluorescence XAFS at the Au LIII-edge of a catalyst consisting of 700 ppm Au and 400 ppm Pd on Al2O3. (b) Corresponding MCA spectrum recorded using an excitation energy of 12.7 keV. (Labels in brackets: Ar fluorescence from the ambient air and/or Pd fluorescence from the sample, Zn fluorescence from impurities.) |