Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

High resolution electron energy loss spectroscopy has been used to examine the effects of coadsorbed oxygen and carbon monoxide on the bonding of nitric oxide adsorbed on the Rh (111) surface. NO is converted from twofold bridge sites (1500–1600 cm−1) to linear sites (1840 cm−1) when annealed to 275 K in the presence of coadsorbed oxygen. Terminally bound linear NO does not dissociate, but desorbs molecularly, a finding consistent with the commonly observed oxygen inhibition of NO dissociation over noble metals. Coadsorbed CO does not significantly inhibit or promote the dissociation of a low coverage of nitric oxide compared to the clean Rh (111) surface. CO and NO appear to segregate and form islands of each species at 95 K if CO is adsorbed first. Annealing this adlayer above 250 K disperses the islands and mixes the adsorbate layer at temperatures below where NO dissociation and reaction with CO are significant. The Rh–CO bond is weakened in well-mixed CO+NO adlayers, indicating that the NO–CO repulsive interaction acts through the Rh substrate rather than directly between the adsorbed molecules.

Bibliography

Root, T. W., Fisher, G. B., & Schmidt, L. D. (1986). Electron energy loss characterization of NO on Rh(111). II. Coadsorption with oxygen and CO. The Journal of Chemical Physics, 85(8), 4687–4695.

Authors 3
  1. T. W. Root (first)
  2. Galen B. Fisher (additional)
  3. L. D. Schmidt (additional)
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Dates
Type When
Created 23 years ago (July 26, 2002, 9:02 a.m.)
Deposited 1 year, 6 months ago (Feb. 10, 2024, 12:19 a.m.)
Indexed 1 month, 4 weeks ago (June 27, 2025, 3:24 p.m.)
Issued 38 years, 10 months ago (Oct. 15, 1986)
Published 38 years, 10 months ago (Oct. 15, 1986)
Published Print 38 years, 10 months ago (Oct. 15, 1986)
Funders 0

None

@article{Root_1986, title={Electron energy loss characterization of NO on Rh(111). II. Coadsorption with oxygen and CO}, volume={85}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.451743}, DOI={10.1063/1.451743}, number={8}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Root, T. W. and Fisher, Galen B. and Schmidt, L. D.}, year={1986}, month=oct, pages={4687–4695} }