The structure of palladium during the total combustion of methane has been studied by a combination of the complementary in situ techniques X-ray absorption spectroscopy, Raman spectroscopy and X-ray diffraction. The study demonstrates that finely dispersed and oxidized palladium is most active for the oxidation of methane. Upon heating in the reaction mixture a sudden reduction accompanied by strong sintering of the palladium particles occurs leading to a less active catalyst. Raman spectroscopy combined with XAS shows that palladium is re-oxidized during cooling but is not as finely dispersed as in its prepared state.
|Title of host publication||Journal of Physics: Conference Series|
|Publication status||Published - 2009|
|Event||14th International Conference on X-Ray Absorption Fine Structure - Camerino, Italy|
Duration: 26 Jul 2009 → 31 Jul 2009
|Conference||14th International Conference on X-Ray Absorption Fine Structure|
|Period||26/07/2009 → 31/07/2009|