Energy Transfer Between Carbon Monoxide and Gold Surfaces Peter Johnsen Motivation Gain a fundamental understanding of the basic principles involved energy transfer mechanisms at surfaces Ability to design efficient heterogeneous catalysts ID: 764090
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Energy Transfer Between Carbon Monoxide and Gold Surfaces Peter Johnsen
MotivationGain a fundamental understanding of the basic principles involved energy transfer mechanisms at surfacesAbility to design efficient heterogeneous catalysts Improvement of surface vapor deposition processesCreation of more effective ways to combat corrosion
The Machine
Scattering and Detection
Scattering and Detection
Scattering and Detection
Kr on Au(111)
Noble Gas Adsorbates on Au(111)
Effects of monolayer adsorption on Au(111) Electron ic RadiusWork Function Change (ΔΦ)*Relative Electron Ejection ProbabilityArgon1.88 Å - 0.38 0.38 Krypton 2.02 Å - 0.42 Xenon 2.16 Å - 0.53 Electron ic Radius Work Function Change ( ΔΦ )* Relative Electron Ejection Probability Argon 1.88 Å - 0.38 Krypton 2.02 Å - 0.42 Xenon 2.16 Å - 0.53 *M . Springborg PRL B 73 (2006 )
ConclusionWe are able to cover precisely cover the surface with adsorbates, giving us up to 750% enhancement of the energy transfer process. The current models for molecular energy transfer fail to accurately describe what’s happening (or break entirely), so we need to develop new models.