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Volumn 79, Issue 5, 1983, Pages 2400-2410

The influence of adsorbate interactions on kinetics and equilibrium for CO on Ru(001). I. Adsorption kinetics

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001063262 PISSN: 00219606 EISSN: None Source Type: Journal
DOI: 10.1063/1.446047 Document Type: Article

Times cited : (155)

References (33)

1
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- See, for example, T. L. Hill, (Addison—Wesley, Reading, Mass. 1962).
- An Introduction to Statistical Thermodynamics

2
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- in, (Chemical Rubber, Boca Raton, ), Vol. II, edited by R. Vanselow
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- King, D.A.¹

3
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- in, (Springer, New York, ),.edited by R. Vanselow and R. Howe
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- Menzel, D.¹

5
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- .
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11
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- Williams, E.D.¹ Weinberg, W.H.²

12
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- Ph.D. thesis, Technical University of München,.
- (1982)
- Pfnür, H.¹

18
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- (1932) Trans. Faraday Soc , vol.28 , pp. 33
- Lennard‐Jones, J.E.¹

21
- 0042146113
- (1979) J. Chem. Phys , vol.70 , pp. 1437
- Thomas, G.E.¹ Weinberg, W.H.²

26
- 85034728856
- It is interesting to note here another consequence of our results. Our measurements show clearly that the optimal coverage for the [formula omitted] structure is smaller than the value of 0. 58 which was assumed in a previously published model (Ref. 8) because in that work a constant sticking coefficient up to this coverage had been assumed. Our data show that, even at 100 K, s decreases slightly from [formula omitted] on, and a sharp decrease sets in before [formula omitted] We therefore conclude that the optimal coverage for this LEED structure is [formula omitted] and the unit mesh of this structure contains only six molecules instead of seven. A possible model for this structure based on this finding and compatible with other aspects of this work is shown in Fig. 5(c).

27
- 85034729352
- Such an activation barrier is formed most clearly in dissociative adsorption. In molecular adsorption, a barrier can derive from interactional effects at sufficiently high conver‐ages, as in our case. It should be noted that even at zero coverage the existence of a barrier is not excluded here; it could derive from a necessity of rehybridization of the system for formation of the chemisorption bond.

29
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- (1937) Proc. R. Soc. London Ser. A , vol.158 , pp. 269
- Devonshire, A.F.¹

31
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- (1981) Phys. Rev. Lett , vol.47 , pp. 1829
- Cavanagh, R.R.¹ King, D.S.²

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