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Catalysts 2014, 4(4), 356-374; doi:10.3390/catal4040356

Metallic Clusters: Theoretical Background, Properties and Synthesis in Microemulsions

1
Chemistry Physics Department, Campus Vida, University of Santiago de Compostela, E-15782, Spain
2
Applied Physics Department, Campus Vida, University of Santiago de Compostela, E-15782, Spain
*
Author to whom correspondence should be addressed.
Received: 11 July 2014 / Revised: 9 September 2014 / Accepted: 16 September 2014 / Published: 3 November 2014
(This article belongs to the Special Issue Synthesis of Nanostructured Catalytic Materials from Microemulsions)
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Abstract

Reducing the size from the bulk material to nanoparticles produces a scaling behavior in physical properties in the later ones, due to the large surface-to-volume fraction. By further size reduction, entering into the subnanometric cluster region, physical properties are largely affected by strong quantum confinement. These quantum size effects (HOMO-LUMO gap), the small size and the specific geometry award subnanometric clusters with totally new and fascinating properties, including cluster photoluminescence, enhanced catalytic activity, etc. In this review, we report an introduction to the physical properties of clusters based on the jellium model; the controlled synthesis by microemulsion methods and the catalytic properties in different areas as heterogeneous catalysis, photocatalysis or electrocatalysis among others. View Full-Text
Keywords: atomic quantum clusters; microemulsions; catalysis atomic quantum clusters; microemulsions; catalysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Buceta, D.; Piñeiro, Y.; Vázquez-Vázquez, C.; Rivas, J.; López-Quintela, M.A. Metallic Clusters: Theoretical Background, Properties and Synthesis in Microemulsions. Catalysts 2014, 4, 356-374.

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