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In recent years there have been an increasing number of investigations aimed at ‘bridging the pressure gap’ between UHV surface science experiments on well-characterised single crystal surfaces and the much higher (ambient and above) pressures relevant to practical catalyst applications. By applying existing photon-in/photon-out methods and developing instrumentation to allow photoelectron emission...
The interaction of O2 with the Ag(111) surface was studied with scanning tunneling microscopy (STM) in the pressure range from 10−9Torr to 1atm at room temperature and with X-ray photoelectron spectroscopy (XPS) up to 0.3Torr O2 in the temperature range from RT to 413K. STM images show that the Ag(111) surface topography is little affected in regions with large flat terraces, except for the appearance...
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