Sulfur tolerant vehicle systems academic research

Julie L. D'Itri, D. H. Kim, Mayfair C. Kung, Harold H Kung, Donggeun Ko, Paul Maggard, Jason Pless, Kenneth R Poeppelmeier, R. M. Ferrizz, R. J. Gorte, J. M. Vohs

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

There is a need to develop sulfur tolerant materials that are appropriate for three-way catalysis. In light of this, a study on the effect of SO2 on the structural, morphological, and catalytic properties of metal free CeO2 and Ce0.75Zr0.25O2 oxides was carried out. Both CeO2 and Ce0.75Zr0.25O2 were susceptible to crystalline grain size growth and surface area loss when exposed to gaseous mixtures containing 20-40 ppm SO2 at 600°C. The CO disproportionation reaction occurred on CeO2 and Ce0.75Zr0.25O2, as well as on the Pd metal surface. This reaction led to the deposition of carbon on the surface of the materials and the formation of gaseous CO2. Surface superoxides were highly reactive toward gaseous ethylene, while adsorbed peroxides were spectator species. The chemical inertness of the surface peroxides in hydrocarbon oxidation reactions originated from its resistance toward O-O bond dissociation.

Original languageEnglish
Title of host publicationCRC Reports
Edition637
Publication statusPublished - 2004

Fingerprint

Sulfur
Peroxides
Metals
Catalysis
Ethylene
Hydrocarbons
Crystalline materials
Oxidation
Carbon
Oxides

ASJC Scopus subject areas

  • Energy(all)

Cite this

D'Itri, J. L., Kim, D. H., Kung, M. C., Kung, H. H., Ko, D., Maggard, P., ... Vohs, J. M. (2004). Sulfur tolerant vehicle systems academic research. In CRC Reports (637 ed.)

Sulfur tolerant vehicle systems academic research. / D'Itri, Julie L.; Kim, D. H.; Kung, Mayfair C.; Kung, Harold H; Ko, Donggeun; Maggard, Paul; Pless, Jason; Poeppelmeier, Kenneth R; Ferrizz, R. M.; Gorte, R. J.; Vohs, J. M.

CRC Reports. 637. ed. 2004.

Research output: Chapter in Book/Report/Conference proceedingChapter

D'Itri, JL, Kim, DH, Kung, MC, Kung, HH, Ko, D, Maggard, P, Pless, J, Poeppelmeier, KR, Ferrizz, RM, Gorte, RJ & Vohs, JM 2004, Sulfur tolerant vehicle systems academic research. in CRC Reports. 637 edn.
D'Itri JL, Kim DH, Kung MC, Kung HH, Ko D, Maggard P et al. Sulfur tolerant vehicle systems academic research. In CRC Reports. 637 ed. 2004
D'Itri, Julie L. ; Kim, D. H. ; Kung, Mayfair C. ; Kung, Harold H ; Ko, Donggeun ; Maggard, Paul ; Pless, Jason ; Poeppelmeier, Kenneth R ; Ferrizz, R. M. ; Gorte, R. J. ; Vohs, J. M. / Sulfur tolerant vehicle systems academic research. CRC Reports. 637. ed. 2004.
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AU - Maggard, Paul

AU - Pless, Jason

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