Abstract
The initial stages of oxidation on roughened Cu(110) surface were explored by an in situ ultra-high vacuum transmission electron microscope (UHV-TEM). The dynamic observation of the nucleation and growth of Cu oxide islands shows a highly enhanced nucleation rate on the roughened Cu(110) surface. The kinetic data obtained from the initial stages of the oxidation indicate that oxygen surface diffusion plays a dominant role in the nucleation of the oxide islands; however, the growth of the three-dimensional oxide islands is caused by both oxygen surface diffusion and direct impingement.
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