Preparation, Characterization and Applications of Metal-Supported Nanocatalysts
A special issue of Micromachines (ISSN 2072-666X).
Deadline for manuscript submissions: closed (15 December 2023) | Viewed by 609
Special Issue Editor
Interests: preparation, characterization, and catalytic activity of metal-supported catalysts; surface properties of solids; pollutants adsorption; environmental management; industrial waste valorization
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
When the surface of a solid is exposed to a mixture of gases or liquids that would not react in the liquid or gas phases, adsorption can promote the reaction for at least two reasons: it increases the local concentration of the reactants at the surface, or it attracts one of the reactants, or possibly both, generating a state that reduces the activation energy barrier due to the presence of active sites, and the products appear. These are the two basic principles on which most catalyzed reactions are based.
Despite this apparent simplicity, a large number of questions arise as a consequence of the observed catalytic behavior: what is the physical meaning of the concept of “active site”? How does the distribution and size of the influence of the “active site” on the surface affect the catalytic result? What is the role of surface diffusion and porosity? How do the chemical properties of the support/catalyst affect the catalytic result? Is it possible to differentiate the bifunctional nature of a catalyst? How could the efficiency of a catalyst be increased? Do metallic surfaces have the same catalytic behavior as if the metal is distributed in small particles supported on an inert material? These and many other questions will be addressed in this Special Issue.
Prof. Dr. Antonio Gil Bravo
Guest Editor
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Keywords
- heterogeneous catalysis
- textural properties
- surface properties
- active site
- supported catalysts
- nanocatalysis
- chemical surface characterization
- metal dispersion
- species mobility
- spillover
- mobility
- chemical and physical adsorption
- remote control
- stability
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