Abstract
The thermal decomposition of NH 3 was studied on the open Ru(1121) surface using high-resolution electron energy loss spectroscopy (HREELS) and thermal desorption spectroscopy (TDS). For small NH 3 coverages up to 0.25 of a monolayer, NH 3 decomposes completely during annealing of the sample. At higher coverages molecular desorption is also observed. The dehydrogenation gives rise to sharp peaks in the H 2 TD spectra. NH 2, NH, and N are identified using HREELS. A translational mode of NH 3 is observed at 15 meV
Author supplied keywords
- AMMONIA
- AMMONIA-SYNTHESIS
- AMMONIUM
- CHEMISORPTION
- COVERAGE
- Catalytic ammonia synthesis
- DECOMPOSITION
- DEHYDROGENATION
- DESORPTION
- DISSOCIATION
- ELECTRON
- ELECTRON-ENERGY
- ELECTRON-ENERGY-LOSS
- ENERGIES
- ENERGY
- ENERGY LOSS SPECTROSCOPY
- ENERGY-LOSS
- ENERGY-LOSS-SPECTROSCOPY
- H
- HIGH-RESOLUTION
- HREELS
- High index single crystal surfaces
- LOSS SPECTROSCOPY
- LOSS-SPECTROSCOPY
- MODE
- MONOLAYER
- NH
- NH<sub>3</sub>
- SPECTRA
- SPECTROSCOPIES
- SPECTROSCOPY
- SURFACE
- TDS
- THERMAL-DECOMPOSITION
- THERMAL-DESORPTION
- Thermal
- W
- Y
- ammonia synthesis
- annealing
- catalytic
- electron energy loss spectroscopy
- ruthenium
- spectrum
- synthesis
- thermal decomposition
- thermal desorption
- thermal desorption spectroscopy
- vibrations of adsorbed molecules
Cite
CITATION STYLE
Dietrich, H., Jacobi, K., & Ertl, G. (1996). Decomposition of NH 3 on Ru(1121). Surface Science, 352–354, 138–141. Retrieved from http://www.scopus.com/inward/record.url?eid=2-s2.0-0030144503&partnerID=40&md5=0dc0a07dd60288931b8f8489431b788a
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