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Chemicals, plastics and rubber industries

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Nanocatalysis on tailored shape supports: Au and Pd nanoparticles supported on MgO nanocubes and ZnO nanobelts

Article Abstract:

Synthesis of active fold and palladium nanoparticles supported on MgO nanocubes and ZnO nanobelts and transition-metal-containing MgO nanobelts is presented by combining evaporation and deposition-precipitation techniques. The high activity and stability of the Au/CeO2 and Pd/CeO2 nanoparticle catalysts deposited on the MgO cubes are remarkable implying that a variety of efficient catalysts could be designed and tested using this approach.

Author: El-Shall, M. Samy, Glaspell, Garry, Fuoco, Lindsay, Hassan, Hassan M.A., Elzatahry, Ahmed, Radwan, Nagi R.E.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Palladium, Zinc compounds, Structure, Nanoparticles

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Controlled texturing modifies the surface topography and plasmonic properties of Au Nanoshells

Article Abstract:

A facile and controllable method for the postfabrication texturing of the surface topography of Au nanoshells based on site-selective chemical etching of the polycrystalline Au nanoshell surface by a bifunctional alkenthiol molecule, cysteamine is reported. This nanoscale surface texturing process systematically introduces dramatic changes to the plasmonic properties of the Au nanoshells.

Author: Halas, Naomi J., Oubre, Chris, Nordlander, Peter, Tam, Felicia, Hui Wang, Goodrich, Glenn P.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
Science & research, Research, Nanotechnology, Plasma etching

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Au atoms and dimers on the MgO(100) surface: A DFT study of nucleation at defects

Article Abstract:

The adsorption of Au atoms at the surface of MgO and the formation of Au dimers were studied by means of first principles density functional theory supercell calculations. The defect sites on MgO did not have a special role in promoting or demoting Au dimerization, while they were necessary to trap the diffusing Au atoms or clusters.

Author: Pacchioni, Gianfranco, Delbecq, Francoise, Vitto, Annalisa Del
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
Usage, Density functionals, Density functional theory

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Subjects list: Gold compounds, Chemical properties, Magnesium compounds, Optical properties
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