781 In Situ and Operando Spectroscopy of Catalysts

Friday, November 8, 2013: 8:30 AM
Yosemite B (Hilton)
Description:
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.

Sponsor:
Catalysis and Reaction Engineering Division

Chair:
Jason C. Hicks
Email: jhicks3@nd.edu

Co-Chair:
Carsten Sievers
Email: carsten.sievers@chbe.gatech.edu


8:30 AM
(781a) Surface Chemistry of Polyols On Metal Oxides
John R. Copeland, Guo Shiou Foo, Ivan Santillan and Carsten Sievers

9:10 AM
(781c) In-Situ XAS and AP-XPS of Ni-Cu Supported Catalysts Under Ethanol Dehydrogenation Reaction
Allison Cross, Shiran Zhang, Jeffrey T. Miller, Franklin (Feng) Tao, Alexander Mukasyan and Eduardo E. Wolf

9:30 AM
(781d) Applications of in-Situ/Operando Hyperpolarized NMR Spectroscopy to Molecular Single-File Diffusion and Heterogeneous Hydrogenation Catalysis
Clifford R. Bowers, Muslim Dvoyashkin, Ronghui Zhou, Wei Cheng, Luke M. Neal, Helena E. Hagelin-Weaver and Sergey Vasenkov

10:10 AM
(781f) New Insights Into the Water-Gas Shift Reaction Over Bulk CuO*Cr2O3*Fe2O3 Mixed Oxide Catalysts: A Combined Operando Raman-IR-XAS-XPS Investigation
Christopher Keturakis, Minghui Zhu, Emma Gibson, Relja Vasic, Tulio Rocha, Franklin (Feng) Tao, Marco Daturi, Anatoly I. Frenkel, Robert Schlogl and Israel E. Wachs
See more of this Group/Topical: Catalysis and Reaction Engineering Division