The chemisorption of mercury on tungsten (100): Adsorption and desorption kinetics, equilibrium properties and surface structure
作者： R.G Jones , D.L Perry
DOI: 10.1016/0039-6028(78)90314-X
关键词: Chemisorption 、 Island growth 、 Thermal desorption 、 Adsorption 、 Thermodynamics 、 Auger electron spectroscopy 、 Physical chemistry 、 Monolayer 、 Chemistry 、 Work function 、 Sticking probability
摘要: The adsorption of mercury on W(100) has been studied by Auger spectroscopy, LEED and work function thermal desorption measurements. Mercury adsorbs at room temperature to form a (1 × 1) monolayer, with sticking probability unity heat 208 ± 12kJ mol−1. coverage dependence the change is interpreted according an island growth mechanism which shown be consistent observations. At higher temperatures, equilibrium isotherms show evidence for attractive adsorbate-adsorbate lateral interactions. were simulated using localised adlayer model within quasi-chemical approximation. This gave nearest-neighbour pairwise interaction energy 5.85 kJ interactions are invoked explain kinetics, zero order.
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