Accession Number:

ADA090552

Title:

The Decomposition of N2O on Ni(110)

Descriptive Note:

Technical rept.

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING

Personal Author(s):

• Sau, Radhesyam
• Hudson, John B.

Report Date:

1980-09-15

Pagination or Media Count:

23.0

Abstract:

The catalytic decomposition of N2O to yield N2 gas and adsorbed oxygen has been studied on the Ni110 surface over the temperature range from 323 to 873K. The combination of Auger electron spectroscopy and molecular beam mass spectrometry has been used to determine the overall rates of production of adsorbed oxygen and N2 gas, and the scattering behavior of unreacted N2O. These data have been analysed to determine the single collision reaction probability as a function of surface temperature and adsorbed oxygen coverage. The reaction precedes from a zero-coverage reaction probability of from 0.97 and 0.52 depending on temperature, to zero reaction probability at an adsorbed oxygen coverage of 13 ML. The behavior at partial oxygen coverage is strongly influenced by the presence of a molecular precursor species, especially at low temperatures.

Descriptors:

• *ADSORPTION
• *CATALYSIS
• *CATALYSTS
• *DECOMPOSITION
• *NICKEL
• *NITROGEN OXIDES
• AUGER ELECTRON SPECTROSCOPY
• MASS SPECTROMETRY
• MOLECULAR BEAMS
• MOLECULES
• PRECURSORS
• SCATTERING
• SURFACE CHEMISTRY
• SURFACE TEMPERATURE

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE