für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua UniVersity, Beijing 100084, China, Department of Physics, Washington State UniVersity, 2710 UniVersity DriVe, Richland, Washington 99354, and Chemical & Materials Sciences DiVision, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352

Using Hellmann-Feynman molecular-dynamics simulations, we have investigated interactions of firstrow elements with the (110) surfaces of GaAs and InP. We find that these atoms prefer to occupy subsurface sites. The open structure of the tetrahedrally bonded GaAs and InP, together with the small sizes of the first-row elements, makes it relatively easy for these atoms to move beneath the surface...

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Products of T.P.D. per cent CO CO, C,H,+C,H, Recent studies of catalysis by supported metal cluster compounds have shown that these systems exhibit novel behaviour. Although diffzcult to characterise, by using a combination of analytical techniques an overall picture can be developed of the cluster nuclearity and the number and type of ligands present. Chemisorption and catalytic studies have b...

This paper presents a brief discussion of the phenomena associated with chemisorption of hydrocarbon species on transition metals during diamond chemical vapor deposition. The concepts relevant to the surface energetics are summarized, and the methods developed for the calculation of surface chemisorption energies are reviewed. Chemisorption energies of methyl radicals on transition metals are ...

classical xerogels are robust, inexpensive and nontoxic materials with low-ordered nanoporous structures. in water streams where the ph is higher than the point of zero charge, the surface of classical xerogels such as tetraethoxy orthosilan (teos) xerogel is negatively charged. it was assumed that a xerogel can work as a strong adsorbent for metal ions without further modification. therefore, ...

We report experimental indications for a size-dependent change of the chemical nature of chemisorption on small atomic clusters. We studied chemisorption of atomic hydrogen on negatively charged Tin clusters using mass and photoelectron spectroscopy. Our experimental data support the assumption that for clusters with up to four Ti atoms, adsorption of intact H2 molecules is the energetically pr...