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Surface Diffusion of Sulfur on Nickel (110) and the Effect of Carbon on the Diffusivity

Published online by Cambridge University Press:  25 February 2011

Barbara Ladna  and
Howard K. Birnbaum
Barbara Ladna
Affiliation:
University of Notre Dame, Department of Chemistry, Notre Dame, EN 46556
Howard K. Birnbaum
Affiliation:
University of Illinois, Materials Research Laboratory, Urbana, IL 61801
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Abstract

The surface diffusion coefficient of sulfur on the (110) surface of nickel was determined at temperatures of 623, 673 and 723 K by measurement of surface diffusion profiles using an Auger Electron Spectrometer. A half-plane monolayer of segregated sulfur was used as a source and the analysis was done by a Boltzmann-Matano method. The activation energy for surface diffusion of sulfur was determined to be about 106 kJ/mol and pre-exponential Do to be about 6×10-3 m2/s from the Arrhenius plot of D versus 1/T. The presence of carbon on the surface of nickel was shown to decrease the surface diffusion of sulfur. Also, the mechanism of spreading from the half-plane source changed from a classic surface diffusion on clean surfaces to a linear mobility of the sulfur-carbon interface on surfaces covered with carbon.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 280: Symposium B – Evolution of Surface and Thin Film Microstructure , 1992 , 59
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1. Floreen, S., Westbrook, J. H., Acta Metall., 17, 1175 (1969).Google Scholar
2. Bruemmer, S. M., Jones, R. H., Thomas, M. T., Baer, D. R., Metall. Trans., 14A, 223, (1983); 14A, 1729 (1983)Google Scholar
3. Vannice, M. A., Catalysis Rev. Sci., Eng., 14, 153 (1976).CrossRefGoogle Scholar
4. Bortholomew, C. H., Weatherbee, G. D., Jarvi, G. A., J. Catalysis, 60, 257 (1979).Google Scholar
5. Kelley, R. D., Goodman, D. V., Chemical Physics of Solid Surfaces and Heterogeneous Catalysis, edited by King, D. A., Woodroof, D. P. (Elsevier Science Publishers, Amsterdam, 1982) vol. 4, p. 427.Google Scholar
6. Schumacher, D., Schule, W., Seeger, A., Zeits. Naturoforshung, 17A, 596 (1962).Google Scholar
7. Wood, B. J., Ablow, C. M., Wise, H., Appl. of Surf. Science, 18, 429 (1984).Google Scholar
8. Ehrlich, G., Stolt, K., Ann. Rev. Phys. Chem., 31, 603 (1980).CrossRefGoogle Scholar
9. Ladna, B., Birnbaum, H. K., Appl. Surf. Science, in press.Google Scholar
10. Larere, A., Guttmann, M., Dumoulin, P., Rogues-Garmes, C., Acta Metall., 30, 685 (1982).CrossRefGoogle Scholar