DOI: 10.1063/1.1350817. The oxidation of CO on RuO2(110) at room temperature

The oxidation of CO on RuO2(110) at room temperature

10.1063/1.1350817

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

RuO 2 (110) surfaces were prepared by exposing Ru(0001) to 107 L of O2 at 700 K. Postexposure of O2 at 300 K resulted in an additional oxygen species (O-cus) adsorbed on coordinatively unsaturated Ru atoms (Ru-cus). The surface was then exposed to CO at 300 K and studied by thermal desorption spectroscopy (TDS) and high-resolution electron energy loss spectroscopy (HREELS). It is demonstrated that CO is oxidized at 300 K through reaction with both the O-cus as well as with surface O-atoms held in bridge positions (O-bridge). Although—at room temperature—CO adsorbs intermediately on the Ru-cus atoms, it is stable only at the Ru atoms underneath the O-bridge after the latter has been reacted off. At room temperature only surface oxygen takes part in the CO oxidation and the oxygen-depleted surface can be restored by O2 exposure, so that under steady-state flow conditions an oxygen-deficient surface will exist whose stoichiometry will be determined by the ratio of partial pressures.

Bibliography

Fan, C. Y., Wang, J., Jacobi, K., & Ertl, G. (2001). The oxidation of CO on RuO2(110) at room temperature. The Journal of Chemical Physics, 114(22), 10058â10062.

Authors 4

C. Y. Fan (first)
J. Wang (additional)
K. Jacobi (additional)
G. Ertl (additional)

References 15 Referenced 92

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{'key': '2024020519302481300_r1a', 'first-page': '983', 'volume': '24', 'year': '1984', 'journal-title': 'Kinet. Katal.'} / Kinet. Katal. (1984)
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{'key': '2024020519302481300_r2a'}
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Dates

Type	When
Created	23 years ago (July 26, 2002, 10:17 a.m.)
Deposited	1 year, 6 months ago (Feb. 5, 2024, 3:35 p.m.)
Indexed	3 weeks ago (Aug. 2, 2025, 12:41 a.m.)
Issued	24 years, 2 months ago (June 8, 2001)
Published	24 years, 2 months ago (June 8, 2001)
Published Print	24 years, 2 months ago (June 8, 2001)

Funders 0

None

BibTeX

@article{Fan_2001, title={The oxidation of CO on RuO2(110) at room temperature}, volume={114}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1350817}, DOI={10.1063/1.1350817}, number={22}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Fan, C. Y. and Wang, J. and Jacobi, K. and Ertl, G.}, year={2001}, month=jun, pages={10058–10062} }

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