92168.pdf
132 The solid-gas interface Figure 5.11 BET isotherms Adsorption energies A most important feature of the models upon which adso ...
The solid-gas interface 133 already partially covered with a monomolecular layer, lateral interaction with the adsorbed gas mole ...
134 The solid-gas interface (Figure 5.6) shows at least two distinct steps, each corresponding to the formation of an adsorbed m ...
The solid-gas interface 135 600 0.2 0.4 0.6 0.8 1.0 P/PO 0.1 0.2 0.3 0.4 0.5 P/PO Figure 5.13 Isotherm and BET plot for the mult ...
136 The solid-gas interface reason why nitrogen is a particularly suitable adsorbate for surface area determinations is because ...
The solid-gas interface 137 quotes over twenty (not counting minor variations)), but only a few of the more important techniques ...
138 The solid-gas interface solids can be cleaved to expose specific crystal faces. A study of clean solid surfaces, either as s ...
The solid-gas interface 139 versus energy spectrum is produced. This kinetic energy, £e|, is given in terms of the irradiation f ...
140 The solid-gas interface gradually replaced by a peak at 283 eV on heating to 350 K as a result of surface dissociation^73. L ...
Th e solid-gas interface 141 Suppose that a primary Is electron is ejected, following which a 2s electron falls into the vacant ...
Figure5.14 of :f%, Al, Ca and K on reduced promoted iron catalyst used for ammonia synthesis 74 !7( (By courtesy of Springer-Ver ...
The solid-gas interface 143 AES can be used for studying specific crystal faces. For example, nitrogen chemisorption on iron has ...
144 The solid-gas interface Square a * b, y = 90° a Rectangular a * b, y == 90° a • * • • Centred rectangular a •* b, ...
The solid-gas interface 145 (100) (110) (111) Figure 5.16 Illustration of the (100), (110), and (111) planes of a body-centred c ...
146 The solid-gas interface are studied on the basis that they will remain intact when the adsorptive has been pumped away. Cons ...
The solid-gas interface 147 Fluorescent screen Observation window Crystal UHV chamber Electron gun (monoenergetic collimated sou ...
148 The solid-gas interface Incident beam Line of scatterers Figure 5.20 Cones of diffracted radiation from a one-dimensional ro ...
The solid-gas interface 149 the anode. Electrodes are wrenched from the metal tip, accelerated along radial lines and hit the fl ...
150 The solid-gas interface Figure 5.22 FIM image of the surface atoms at a tungsten Tip^66 {By courtesy of Oxford University Pr ...
6 The solid-liquid interface Contact angles and wetting 75 77 Wetting is the displacement from a surface of one fluid by another ...
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