A new experimental setup for high-pressure catalytic activity measurements on surface deposited mass-selected Pt clusters
J. Vac. Sci. Technol. A 27 (5), 1153-1158, September 2009
Submitted to Cluster Science: 1 December 2009
Last Update: 6 January 2011

10.1116/1.3179160
OA Status: can archive pre-print and post-print or publisher's version/PDF

Abstract

A new experimental setup to study catalytic and electronic properties of size-selected clusters on metal oxide substrates from the viewpoint of cluster-support interaction and to formulate a method for the development of heterogeneous catalysts such as automotive exhaust catalysts has been developed. The apparatus consists of a size-selected cluster source, a photoemission spectrometer, a scanning tunneling microscope (STM), and a high-pressure reaction cell. The high-pressure reaction cell measurements provided information on catalytic properties in conditions close to practical use. The authors investigated size-selected platinum clusters deposited on a TiO2(110) surface using a reaction cell and STM. Catalytic activity measurements showed that the catalytic activities have a cluster-size dependency.

Classifications

Document Type experimental
Research Field Chemical Reactivity

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