Abstract

The Doyen-Ertl scheme has been extended in order to study the preferential orientation and dissociation of the CO molecule on transition-metal surfaces. On the Ni(110) surface there is a barrier of 0.87 eV to changing the orientation of the molecule from the normal to the parallel position. The presence of Cl has been found to increase the activation energy for CO dissociation on a Ni surface. The use of the scheme in studying the effect of lattice imperfections on the catalytic activity of solids is discussed.

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