Interaction between catalyst and support. 2. low coverage of Co and Ni at the alumina surface

Article Abstract:

The full-potential linearized augmented plane-wave density-functional theory method was employed for investigating the electronic and geometric structure of (alpha)-Al2O3 (0001) surface with and without adsorbed cobalt (Co) and nickel (Ni) atoms. The calculations show that the surface levels, which affect the surface geometry and electronic properties, could be caused due to the unsaturated surface bonds.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Metal ores, not elsewhere classified, All Other Metal Ore Mining, Alumina, Cobalt, Electric properties, Nickel

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Interaction between catalyst and support. 3. metal agglomeration on the silica surface

Article Abstract:

Nucleation, clustering, and multilayer growth of metals on oxide surfaces are examined using calculations of energies and optimum structures of Co and Ni on a silica surface. The calculations suggest that a clean siloxane surface of silica does not provide a strong enough adhesive force for higher coverages of Co and Ni metals.

Industrial Gas Manufacturing, Industrial gases, Nitrogen, Industrial sand, Silica & Silica Sand, Industrial Sand Mining, Silica, Chemical properties

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