15 In Situ and Operando Spectroscopy of Catalysts

Sunday, November 16, 2014: 3:30 PM
303 (Hilton Atlanta)
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

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

Michael T. Timko
Email: mttimko@wpi.edu

- indicates paper has an Extended Abstract file available on CD.

File available
3:30 PM
(15a) In-Situ ATR IR Study on the Mechanism of Aqueous Phase Reforming of Polyols and Sugars
Jungseob So, John R. Copeland, Guo Shiou Foo, David Sholl and Carsten Sievers

3:50 PM

4:10 PM
(15c) Nature of the Active Site for Ammonia Standard SCR and NO Oxidation Reactions
Atish A. Parekh, Shane A. Bates, Anuj Verma, Christopher Paolucci, Atun Anggara, Aleksey Yezerets, Jeffrey T. Miller, William F. Schneider, Rajamani Gounder, W. Nicholas Delgass and Fabio H. Ribeiro

5:10 PM
(15f) Illuminating Surface Atoms in Nanoparticles By Differential X-Ray Absorption Spectroscopy
Charles S. Spanjers, Thomas P. Senftle, Adri C.T. van Duin, Michael J. Janik, Anatoly I. Frenkel and Robert M. Rioux
See more of this Group/Topical: Catalysis and Reaction Engineering Division