Size-and composition optimized sub-nanometer and nm size catalysts for low-temperature jet-fuel activation

Stefan Vajda, Sungsik Lee, Marcel Di Vece, Byeongdu Lee, Sönke Seifert, Randall E. Winans, Glen A. Ferguson, Larry A. Curtiss, Jeffrey P. Greeley, Qiang Qian, Matthew Neurock, Simone Goergen, Rui Si, Maria Stephanopoulos, Xiaoming Wang, Gary L. Haller, Lisa A. Pfefferle

Research output: Contribution to journalConference article

Abstract

Adding catalysts to jet fuels has advantages such as accelerated combustion and increased heat sink capacity. The multitude of parameters determining catalyst performance forms a considerable challenge, such as optimal particle composition and size which primarily determine reaction rates and energetics, plus sintering resistance. Prerequisites for such studies are 1) catalysts with well defined size/composition and 2) characterization of the catalyst at work. In this study, cyclohexane is used as fuel surrogate and its dehydrogenation on Pt- and Co-based catalysts is monitored by temperature programmed reaction combined with in situ X-ray scattering and absorption. The results shows that efficient dehydrogenation of cyclohexane can be performed on subnanometer and nanometer size catalysts, moreover at low temperatures. Catalytic performance can be tuned by varying composition and functionalization of the support material, the size and doping of the nanocatalyst. DFT studies are used to help understand the structures and reaction pathways.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
StatePublished - Aug 25 2011
Externally publishedYes
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: Mar 27 2011Mar 31 2011

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Jet fuel
Chemical activation
Catalysts
Chemical analysis
Dehydrogenation
Cyclohexane
Temperature
X ray absorption
Heat sinks
X ray scattering
Discrete Fourier transforms
Reaction rates
Sintering
Doping (additives)

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Vajda, S., Lee, S., Di Vece, M., Lee, B., Seifert, S., Winans, R. E., ... Pfefferle, L. A. (2011). Size-and composition optimized sub-nanometer and nm size catalysts for low-temperature jet-fuel activation. ACS National Meeting Book of Abstracts.

Size-and composition optimized sub-nanometer and nm size catalysts for low-temperature jet-fuel activation. / Vajda, Stefan; Lee, Sungsik; Di Vece, Marcel; Lee, Byeongdu; Seifert, Sönke; Winans, Randall E.; Ferguson, Glen A.; Curtiss, Larry A.; Greeley, Jeffrey P.; Qian, Qiang; Neurock, Matthew; Goergen, Simone; Si, Rui; Stephanopoulos, Maria; Wang, Xiaoming; Haller, Gary L.; Pfefferle, Lisa A.

In: ACS National Meeting Book of Abstracts, 25.08.2011.

Research output: Contribution to journalConference article

Vajda, S, Lee, S, Di Vece, M, Lee, B, Seifert, S, Winans, RE, Ferguson, GA, Curtiss, LA, Greeley, JP, Qian, Q, Neurock, M, Goergen, S, Si, R, Stephanopoulos, M, Wang, X, Haller, GL & Pfefferle, LA 2011, 'Size-and composition optimized sub-nanometer and nm size catalysts for low-temperature jet-fuel activation', ACS National Meeting Book of Abstracts.
Vajda, Stefan ; Lee, Sungsik ; Di Vece, Marcel ; Lee, Byeongdu ; Seifert, Sönke ; Winans, Randall E. ; Ferguson, Glen A. ; Curtiss, Larry A. ; Greeley, Jeffrey P. ; Qian, Qiang ; Neurock, Matthew ; Goergen, Simone ; Si, Rui ; Stephanopoulos, Maria ; Wang, Xiaoming ; Haller, Gary L. ; Pfefferle, Lisa A. / Size-and composition optimized sub-nanometer and nm size catalysts for low-temperature jet-fuel activation. In: ACS National Meeting Book of Abstracts. 2011.
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AU - Seifert, Sönke

AU - Winans, Randall E.

AU - Ferguson, Glen A.

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AU - Greeley, Jeffrey P.

AU - Qian, Qiang

AU - Neurock, Matthew

AU - Goergen, Simone

AU - Si, Rui

AU - Stephanopoulos, Maria

AU - Wang, Xiaoming

AU - Haller, Gary L.

AU - Pfefferle, Lisa A.

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