Performance and characterization of ALD vanadium oxide catalytic nanoliths

Peter C Stair, J. W. Elam, J. A. Libera, H. Feng, M. J. Pellin, H. S. Kim

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

Abstract

Supported vanadium oxide species are active catalysts for the selective, oxidative conversion of hydrocarbons to useful chemicals. Both the catalytic vanadium oxide and the supporting oxide were synthesized by ALD on high surface powders and anodic aluminum oxide (AAO) nanoliths. The nanoliths were prepared by anodic oxidation of aluminum. 1 nm of ALD aluminum oxide acts as the support for vanadium oxide loaded by 1 to 18 ALD cycles of vanadyltri-isopropoxide/ H202. Ultraviolet-visible absorption edges red shift as the vanadia loading increases. The edge energy of 1-cycle ALD VOx corresponds to isolated, tetrahedral VO4 in agreement with Raman spectroscopy. V-O-V bonds form with additional cycles producing a gradual increase in VO x domain size. Reaction rate coefficients for the oxidative dehydrogenation of cyclohexane show increased overall activity in the high loading catalysts but a higher specific activity in the low loading catalysts for cyclohexene formation.

Original languageEnglish
Title of host publicationECS Transactions
Pages49-55
Number of pages7
Volume25
Edition4
Publication statusPublished - 2009
Event5th Symposium on Atomic Layer Deposition - 216th Meeting of the Electrochemical Society - Vienna, Austria
Duration: Oct 5 2009Oct 7 2009

Other

Other5th Symposium on Atomic Layer Deposition - 216th Meeting of the Electrochemical Society
CountryAustria
CityVienna
Period10/5/0910/7/09

Fingerprint

Vanadium
Oxides
Aluminum
Catalysts
Anodic oxidation
Dehydrogenation
Cyclohexane
Reaction rates
Raman spectroscopy
Catalyst activity
Hydrocarbons
Powders

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Stair, P. C., Elam, J. W., Libera, J. A., Feng, H., Pellin, M. J., & Kim, H. S. (2009). Performance and characterization of ALD vanadium oxide catalytic nanoliths. In ECS Transactions (4 ed., Vol. 25, pp. 49-55)

Performance and characterization of ALD vanadium oxide catalytic nanoliths. / Stair, Peter C; Elam, J. W.; Libera, J. A.; Feng, H.; Pellin, M. J.; Kim, H. S.

ECS Transactions. Vol. 25 4. ed. 2009. p. 49-55.

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

Stair, PC, Elam, JW, Libera, JA, Feng, H, Pellin, MJ & Kim, HS 2009, Performance and characterization of ALD vanadium oxide catalytic nanoliths. in ECS Transactions. 4 edn, vol. 25, pp. 49-55, 5th Symposium on Atomic Layer Deposition - 216th Meeting of the Electrochemical Society, Vienna, Austria, 10/5/09.
Stair PC, Elam JW, Libera JA, Feng H, Pellin MJ, Kim HS. Performance and characterization of ALD vanadium oxide catalytic nanoliths. In ECS Transactions. 4 ed. Vol. 25. 2009. p. 49-55
Stair, Peter C ; Elam, J. W. ; Libera, J. A. ; Feng, H. ; Pellin, M. J. ; Kim, H. S. / Performance and characterization of ALD vanadium oxide catalytic nanoliths. ECS Transactions. Vol. 25 4. ed. 2009. pp. 49-55
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