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Catalysis science research employing model systems (single crystal surfaces) focused on understanding and enhancing catalytic activity (turnover rate). The catalyst surface structure and the mobility of adsorbed species are key ingredients that control activity. Catalytic selectivity is the focus of research in the foreseeable future to develop environmentally benign chemical processes that approach...
Pt nanoparticle arrays were fabricated by electron beam lithography as a model for supported catalysts. The adhesion strength of 28 nm Pt nanoparticles deposited on alumina has been studied using contact mode atomic force microscopy. On as-prepared samples, the metal nanoparticles were removed by the AFM tip with a force of approximately 30 nN. After heat treatment at 500°C in a vacuum, Pt nanoparticles...
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