Insight into the structure of supported palladium catalysts during the total oxidation of methane.
The combination of in situ X-ray absorption spectroscopy, X-ray diffraction and on-line catalytic data provided insight into the structure-performance relationship of a flame-made Pd/ZrO(2) catalyst during the total oxidation of methane: upon heating, a sudden reduction accompanied by sintering of the Pd-particles, leads to a significantly lower catalytic activity and a hysteresis during cooling down.
Grunwaldt
Jan-Dierk
JD
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg - HCI, CH-8093, Zürich, Switzerland. grunwaldt@chem.ethz.ch
van  Vegten
Niels
N
Baiker
Alfons
A
D002384:Catalysis; D008697:Methane / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D013053:Spectrophotometry; D013696:Temperature; D014961:X-Ray Diffraction; D014965:X-Rays; D015040:Zirconium / Q000737:chemistry
D010165:Palladium; D015040:Zirconium; D008697:Methane; C028541:zirconium oxide