3rd Workshop on the Simultaneous Combination of Spectroscopies with X-ray Absorption, Scattering and Diffraction Techniques

Session

Catalysis Session 1

CAT1

4 Jul 2012, 13:20

Auditorium HG E 3 (<a href="http://www.ethz.ch/index_EN">ETH Zurich</a>)

53. An eye on the inside: imaging of catalytic particles under reaction conditions

Dr Andrew Beale (Inorganic Chemistry and Catalysis, Utrecht University)

04/07/2012, 13:20

Catalysis

Invited oral contribution

Industrial catalysis utilizes mainly µm to mm-sized catalyst particles in catalytic reactors instead of powders since this minimizes problems associated with for example back pressure and clogging. In recent times, efforts have been made to study and characterize these ‘real life’ single particles so as to determine the nature of chemical species present in 2D and 3D during various stages of...

57. Chasing changing catalysts with XAFS and high energy X-ray techniques combined with infrared spectroscopy

Dr Mark Newton (ESRF, Grenoble, France)

04/07/2012, 13:50

Catalysis

Invited oral contribution

Starting from a synchronous combination of XAFS with Diffuse reflectance infrared spectroscopy (DRIFTS), a novel combination of very hard (86 keV) X-ray diffraction with DRIFTS will be outlined. The potential for combining these techniques for the in situ study of the dynamic structural-reactive behaviour of working catalysts with high (<<1 second) time resolution will be demonstrated using...

32. Combination of HERDF XAS and ATR IR for in situ investigation of the liquid phase hydrogenation of nitrobenzene

Mr Martin Makosch (ETH Zürich)

04/07/2012, 14:20

Catalysis

Oral contribution

Hydrogenation of nitroarenes is the industrial method to produce functionalized amines. Supported gold showed interesting features for selectivity towards the nitro-group in the presence of other reducible groups. Despite the fact that the reaction mechanism and the origin of the selectivity are well understood, the nature of the active site especially the structure and oxidation state of the...

39. Operando characterisation of heterogeneous catalysts by combination of Quick-XAS with Raman Spectroscopy

Dr Amelie Rochet (SOLEIL)

04/07/2012, 14:40

Catalysis

Oral contribution

Combining Raman with XAS offers a simultaneous access to a multitude of information. Not only complementary information on the local order of the catalyst are obtained when both techniques probe the catalyst at the same spatial point but information on the catalytic activity can be also obtained by Raman spectroscopy when the Raman probe head analyses the reaction products at the cell gas...

43. XAS, XRD and Raman study on nanostructured CeO2-Gd2O3 solid solutions

Dr Paula M. Abdala (SNBL at ESRF)

04/07/2012, 15:00

Catalysis

Oral contribution

Ceria (CeO2) and ceria-based materials have received a lot of attention for many technological applications since they exhibit a number of interesting properties, including high ionic conductivity and excellent catalytic performance for oxidation reactions. The incorporation of metal oxide in the CeO2 structure significantly improves the oxygen storage capacity, ionic conductivity and surface...