Selective catalytic oxidation of CO in H2 over Au/γ-Al2O3

C. K. Costello, H. S. Oh, J. H. Yang, Y. M. Wang, S. R. Bare, Harold H Kung, M. C. Kung

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

Abstract

The effects of chloride, phoshate, and cesium ions on Au/γ-Al2O3 for selective CO oxidation in H2 was examined. The difference in activity between this catalyst and the catalyst not treated with Mg-citrate suggested that small Au particle size could not be a necessary requirement for high activity and the Cl- has a direct inhibitive effect on the catalyst. The transient behavior of the catalysts to which Cl- was added supported the proposal that Cl- poisons the active site by replacing the Au+ - OH- with Au+ - Cl-. Phosphate anions also acted to blocked the active sites for CO oxidation, while Cs ions adversely affected H2 oxidation.

Original languageEnglish
Title of host publicationACS Division of Fuel Chemistry, Preprints
Pages669-670
Number of pages2
Volume47
Edition2
Publication statusPublished - Aug 2002
Event224th ACS National Meeting - Boston, MA, United States
Duration: Aug 18 2002Aug 22 2002

Other

Other224th ACS National Meeting
CountryUnited States
CityBoston, MA
Period8/18/028/22/02

Fingerprint

Catalytic oxidation
Catalysts
Oxidation
Ions
Cesium
Catalyst activity
Phosphates
Negative ions
Particle size

ASJC Scopus subject areas

  • Energy(all)

Cite this

Costello, C. K., Oh, H. S., Yang, J. H., Wang, Y. M., Bare, S. R., Kung, H. H., & Kung, M. C. (2002). Selective catalytic oxidation of CO in H2 over Au/γ-Al2O3. In ACS Division of Fuel Chemistry, Preprints (2 ed., Vol. 47, pp. 669-670)

Selective catalytic oxidation of CO in H2 over Au/γ-Al2O3. / Costello, C. K.; Oh, H. S.; Yang, J. H.; Wang, Y. M.; Bare, S. R.; Kung, Harold H; Kung, M. C.

ACS Division of Fuel Chemistry, Preprints. Vol. 47 2. ed. 2002. p. 669-670.

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

Costello, CK, Oh, HS, Yang, JH, Wang, YM, Bare, SR, Kung, HH & Kung, MC 2002, Selective catalytic oxidation of CO in H2 over Au/γ-Al2O3. in ACS Division of Fuel Chemistry, Preprints. 2 edn, vol. 47, pp. 669-670, 224th ACS National Meeting, Boston, MA, United States, 8/18/02.
Costello CK, Oh HS, Yang JH, Wang YM, Bare SR, Kung HH et al. Selective catalytic oxidation of CO in H2 over Au/γ-Al2O3. In ACS Division of Fuel Chemistry, Preprints. 2 ed. Vol. 47. 2002. p. 669-670
Costello, C. K. ; Oh, H. S. ; Yang, J. H. ; Wang, Y. M. ; Bare, S. R. ; Kung, Harold H ; Kung, M. C. / Selective catalytic oxidation of CO in H2 over Au/γ-Al2O3. ACS Division of Fuel Chemistry, Preprints. Vol. 47 2. ed. 2002. pp. 669-670
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