✍ Scribed by Mark Kuhn; José A. Rodriguez
No coin nor oath required. For personal study only.
There is no bonding between Au and S atoms coadsorbed on top of Ru (000 1) . Au compresses S into small islands of high local coverage, causing dramatic changes in the kinetics of sulfur desorption. The compression reduces the adsorption energy of sulfur on Ru(0001 ), favoring the desorption of Sz in a sharp peak around 1170 K, and preventing the diffusion of S into the bulk of Ru. The presence of sulfur induces a weakening of x 2.5 kJ/mol in the strength of the Au-Ru(OOO1 ) bond. The AU,++ interactions are repulsive due to the electron-acceptor nature of both adsorbates.
📜 SIMILAR VOLUMES
Very low energy scattering of He atoms from the (0001) face of graphite has been used to determine the bound state energies of the laterally averaged He-graphite potential These results disagree with the existing literature, but agree with new measurements by Chung, Kara and FrankI. Their implicatio