641 In Situ and Operando Spectroscopy of Catalysts I

Thursday, November 1, 2012: 8:30 AM
317 (Convention Center )
Monitoring the events taking place in catalytic materials under reaction conditions is crucial for understanding the reaction mechanisms of many important chemical processes and would allow the rational design of new or better catalysts. This monitoring includes the observation of reaction intermediates, discrimination between spectator species and active sites, quantification of unusual oxidation states and coordination environments of metal ions as well as migration and mobility of species at the catalyst surface. In addition, there is an increasing trend in the catalysis community to develop spectroscopic tools in such a way that they allow following the physicochemical processes taking place in an active catalyst in real time and under operating conditions. This session seeks contributions that discuss the latest fundamental and technical aspects related with the field of in situ spectroscopy of catalyst materials under working conditions. Contributions are encouraged that address: (1) the possibilities and limitations of different true in situ or operando spectroscopic techniques; (2) The design and construction of high quality spectroscopic-reaction cells; (3) The quantification and detection of active sites; the discrimination between spectator species and active sites; the observation of reaction intermediates as well as the elucidation of reaction mechanisms.

Catalysis and Reaction Engineering Division

Jason C. Hicks
Email: jhicks3@nd.edu

Carsten Sievers
Email: carsten.sievers@chbe.gatech.edu

8:30 AM
(641a) New Insights Into the Water-Gas Shift Reaction Over Bulk Cr2O3*Fe2O3 Mixed Oxide Catalysts: A Combined Operando Raman-IR-XAS-MS Investigation
Christopher Keturakis, Emma Gibson, Relja Vasic, Franklin (Feng) Tao, Anatoly I. Frenkel, Marco Daturi and Israel Wachs

8:50 AM

9:10 AM
(641c) Aqueous Phase Reforming of Glycerol Over Pt/Al2O3
John R. Copeland, Lindsey Harrison, Guo Shiou Foo and Carsten Sievers

9:30 AM
(641d) In-Situ X-Ray Absorption Spectroscopy Investigation of a Bifunctional Manganese Oxide Catalyst with High Activities for the Oxygen Reduction and Evolution
Yelena Gorlin, Benedikt Lassalle, Sheraz Gul, Jesse D. Benck, Vittal Yachandra, Junko Yano and Thomas F. Jaramillo

10:10 AM
(641f) In Situ and Operando Raman/IR/UV-Vis/MS Spectroscopic Studies of Propylene Metathesis by Supported Wox/SiO2 Catalysts
Israel E. Wachs, Soe Lwin, Wu Zhou, Chris K. Kiely, Nikolaos Soultanidis and Michael S. Wong

10:30 AM
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