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The interaction of Br 2 with Cu(100) was characterized using temperature-programmed desorption (TPD) and low-energy electron diffraction (LEED). Initial exposure to Br 2 resulted in the formation of a c(2 2) LEED pattern and CuBr desorption peaks at 870 and 1000 K. These desorption peaks saturated at a dose of approximately 5 L and were attributed to Br 2 chemisorption....
Scanning tunneling microscopy (STM) was used to study the oxidation of CO with O-precovered Cu(110) in the steady state at 400 K at the atomic level. There is a strong preference for CO to react with oxygen along the p(2 × 1) oxygen rows. The reaction appears to occur initially at the outer edge of an oxygen island, creating kink defects in the overlayer structure. Once created, these defects are...
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