Surface Science: Foundations of Catalysis and
List of corrections to second printing
In the Acknowledgements
I would also like to acknowledge Tom Beebe, George Darling, Gehard
Ertl, Peter Maitlis, Hari Manoharan, David Walton and Anja Wellner for
providing figures. Thanks to Scott Anderson, Eric Borguet, Laura Ford,
Soon-Ku Hong, Weixin Huang, Lynne Koker, David Mills, and Pat Thiel for
bringing various typographical
errors to my attention.
p. 19 Should read:
In Fig. 1.13(a) the metal has donated charge to the semiconductor
space-charge region. The enhanced charge density in the space-charge
region corresponds to an accumulation layer. In Fig. 1.13(b) charge
transfer has occurred
in the opposite direction. Because the electron density in this region
is lower than in the bulk, this type of space-charge region is know as
a depletion layer.
p. 48 Eqs. (2.21) and (2.22)
should have a –1 in the numerator.
p. 51. The caption to Fig. 2.16 still contains an error:
(c) (i) fcc(100)–(2x2)
In Exercise 3.14, typo in book reads Sd instead of
pp. 179–180. The discussion should simply be improved. This correction
messes with the subsequent equation numbers.
To define more precisely what we mean by the activation energy and how
it relates to the PES, we turn to Fig. 4.5. First we note, as shown by
Fowler and Guggenheim , that the activation energy, in this case Edes, is given by the
difference between the mean energy of the reactants 〈E〉R and the mean energy
of the molecules in the transition state 〈E〉‡
 R. H. Fowler and E. A. Guggenheim, Statistical Thermodynamics.
Cambridge University Press, Cambridge, UK, 1939.
Since both 〈E〉R and
temperature dependent, Edes
is, in principle, also temperature dependent. The classical
barrier height on the PES is . Edes
is not simply related to . As can be seen in Fig. 4.5, the
two energies are identical at 0 K. At any other temperature, Edes and are
different, though they likely have similar values.
To account for this expected temperature dependence, it is useful to
introduce a more general mathematical definition of the activation
energy of desorption
Frequently it is found that Eq. (4.53) obeys the form
p. 185 "The coverage at time t is given by integrating Eq. (4.61) (see
also Exercise 4.2)
where ε is the exposure. The coverage is linearly proportional to the
exposure only if the sticking coefficient is constant as a function of
coverage, which is often true at very low coverage, for metal on metal
adsorption or condensation onto multilayer films."
p. 197–198 "First-order desorption leads to asymmetric peaks.
Second-order desorption leads to symmetric peaks."
4.6 Consider precursor mediated adsorption through an equilibrated
precursor state. The activation barrier to desorption out of the
precursor is Edes
and the activation barrier separating the precursor from the
chemisorbed state is Ea.
Prove mathematically that in precursor mediated adsorption, if Edes > Ea, increasing the
surface temperature decreases the sticking coefficient and if Edes < Ea, increasing Ts favours sticking.
p. 250, line 8
A tensile force pulls away from the interface.
p. 280 Fig. 6.15. Panel (a) is incorrect but then you can't
see it anyway.
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Last Modified: 7 November 2005