Abstract
Morrison and Roberts1 obtained consistent calculations for the variation of the accommodation coefficient of neon on a tungsten filament during the adsorption of oxygen using the assumption that the sticking probability for oxygen on tungsten is initially unity and independent of coverage. Later work on filaments and ribbons, using the sophisticated techniques of ultra-high vacuum technology and the more direct flash filament method for measuring sticking probabilities2 has, however, produced values between 0.1 and 0.2 (refs. 3 to 6), although Schlier7 has reported a value of 0.65.
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References
Morrison, J. L., and Roberts, J. K., Proc. Roy. Soc., A, 173, 1 (1939).
Hayward, D. O., and Trapnell, B. M. W., in Chemisorption, second ed. (Butterworths, London, 1964).
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Hayward, D. O., King, D. A., and Tompkins, F. C., Chem. Comm., 178 (1965).
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HORGAN, A., KING, D. Adsorption Efficiency in the Collision of Molecular Oxygen with Clean Tungsten Surfaces. Nature 217, 60–61 (1968). https://doi.org/10.1038/217060a0
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DOI: https://doi.org/10.1038/217060a0
