Abstract

Electron energy-loss and total current spectroscopy and photodesorption methods are employed in studies of CO adsorption on a ZnO(0001) surface. Predominantly CO 2 molecules are registered in the light-induced desorption flow. In addition to the desorption stimulated by thermal action of light, a photodesorption component of CO 2 is observed. The spectroscopy data provides evidence for CO oxidation on the ZnO(0001) surface and for formation of a (CO 2 −) chemisorption complex which is considered as an initial state for CO 2 photodesorption.

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