Catalyst structure determination using operando XAFS

John Linehan, John L. Fulton, Mahalingam Balasubramanian, Yongsheng Chen, Tom Autrey, Nathaniel K. Szymczak, James A. Franz, Richard G. Finke, Thomas E. Bitterwolf, Wendy J. Shaw, Tricia Smurthwaite

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spectroscopy of catalyst systems under actual operating conditions, or operando spectroscopy, has become instrumental in helping to determine the structures and mechanisms of catalytic systems. Operando spectroscopy is differentiated from in situ spectroscopy in that operando spectroscopy occurs under the actual catalyst operating conditions. In addition, a measure of the catalyst activity is also critical during operando spectroscopy. Operando spectroscopy has revealed that some catalytic systems operate under much different conditions than previously believed based on ex situ analysis. We present some of our recent work using operando XAFS of catalytic systems varying from hydrogen release of hydrogen storage materials to benzene hydrogenation. We present a basic introduction into XAFS and its use as an operando technique and show how this technique can be used to differentiate between catalyst containing highly dispersed nanoparticles and organometallic clusters.

Original languageEnglish
Title of host publicationACS National Meeting Book of Abstracts
Publication statusPublished - 2009
Event237th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Salt Lake City, UT, United States
Duration: Mar 22 2009Mar 26 2009

Other

Other237th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CitySalt Lake City, UT
Period3/22/093/26/09

Fingerprint

Spectroscopy
Catalysts
Hydrogen storage
Organometallics
Benzene
Hydrogenation
Hydrogen
Catalyst activity
Nanoparticles

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Linehan, J., Fulton, J. L., Balasubramanian, M., Chen, Y., Autrey, T., Szymczak, N. K., ... Smurthwaite, T. (2009). Catalyst structure determination using operando XAFS. In ACS National Meeting Book of Abstracts

Catalyst structure determination using operando XAFS. / Linehan, John; Fulton, John L.; Balasubramanian, Mahalingam; Chen, Yongsheng; Autrey, Tom; Szymczak, Nathaniel K.; Franz, James A.; Finke, Richard G.; Bitterwolf, Thomas E.; Shaw, Wendy J.; Smurthwaite, Tricia.

ACS National Meeting Book of Abstracts. 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Linehan, J, Fulton, JL, Balasubramanian, M, Chen, Y, Autrey, T, Szymczak, NK, Franz, JA, Finke, RG, Bitterwolf, TE, Shaw, WJ & Smurthwaite, T 2009, Catalyst structure determination using operando XAFS. in ACS National Meeting Book of Abstracts. 237th National Meeting and Exposition of the American Chemical Society, ACS 2009, Salt Lake City, UT, United States, 3/22/09.
Linehan J, Fulton JL, Balasubramanian M, Chen Y, Autrey T, Szymczak NK et al. Catalyst structure determination using operando XAFS. In ACS National Meeting Book of Abstracts. 2009
Linehan, John ; Fulton, John L. ; Balasubramanian, Mahalingam ; Chen, Yongsheng ; Autrey, Tom ; Szymczak, Nathaniel K. ; Franz, James A. ; Finke, Richard G. ; Bitterwolf, Thomas E. ; Shaw, Wendy J. ; Smurthwaite, Tricia. / Catalyst structure determination using operando XAFS. ACS National Meeting Book of Abstracts. 2009.
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AU - Szymczak, Nathaniel K.

AU - Franz, James A.

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