Field-induced CO adsorption and formation of carbonyl waves on gold nanotips |
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| Authors: | Visart de Bocarmé T Kruse N Gaspard P Kreuzer H J |
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| Institution: | Chemical Physics of Materials,Université Libre de Bruxelles, Code Postal 243, Campus Plaine, B-1050 Brussels, Belgium. |
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| Abstract: | We report a study of the adsorption and reaction of CO on a gold nanotip in high electrostatic fields. Field ion microscopy is used to investigate the emergence of a Au-carbonyl wave that is made visible with oxygen as the imaging gas. We set up a simple kinetic model that reproduces the adsorption wave and confirms that the presence of oxygen merely serves as an imaging gas and does not lead to field-induced oxidation of CO. |
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