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Dissociation of CO on the Ru(1 1 -2 0) surface

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Wang,  Jinhai
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Wang,  Yuemin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Jacobi,  Karl
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Wang, J., Wang, Y., & Jacobi, K. (2001). Dissociation of CO on the Ru(1 1 -2 0) surface. Surface Science, 488(1-2), 83-89. doi:10.1016/S0039-6028(01)01108-6.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-17D7-8
Abstract
The dissociation of CO on the Ru(11-20) surface was investigated by thermal desorption spectroscopy and high resolution electron energy loss spectroscopy (HREELS). Up to about 20% of a monolayer CO dissociates on the Ru(11-20) surface at room temperature. Oxygen (68 meV) and carbon (42 meV) are identified as dissociation products by HREELS. At temperatures below 240 K the precursor of dissociation can be stabilized. In this state, CO is tilted and presumably bonded at a kind of a fourfold hollow site. During annealing, CO2 formation is observed from CO reacting with oxygen from the dissociation.