Catalysis with Transition Metal Nanoparticles in Colloidal Solution: Nanoparticle Shape Dependence and Stability
- 4 June 2005
- journal article
- other
- Published by American Chemical Society (ACS) in The Journal of Physical Chemistry B
- Vol. 109 (26), 12663-12676
- https://doi.org/10.1021/jp051066p
Abstract
While the nanocatalysis field has undergone an explosive growth during the past decade, there have been very few studies in the area of shape-dependent catalysis and the effect of the catalytic process on the shape and size of transition metal nanoparticles as well as their recycling potential. Metal nanoparticles of different shapes have different crystallographic facets and have different fraction of surface atoms on their corners and edges, which makes it interesting to study the effect of metal nanoparticle shape on the catalytic activity of various organic and inorganic reactions. Transition metal nanoparticles are attractive to use as catalysts due to their high surface-to-volume ratio compared to bulk catalytic materials, but their surface atoms could be so active that changes in the size and shape of the nanoparticles could occur during the course of their catalytic function, which could also affect their recycling potential. In this Feature Article, we review our work on the effect of the shape of the colloidal nanocatalyst on the catalytic activity as well as the effect of the catalytic process on the shape and size of the colloidal transition metal nanocatalysts and their recycling potential. These studies provide important clues on the mechanism of the reactions we studied and also can be very useful in the process of designing better catalysts in the future.Keywords
This publication has 100 references indexed in Scilit:
- Formation of silver nanorods by microwave heating in the presence of gold seedsJournal of Crystal Growth, 2005
- Electrocatalysis under Conditions of High Mass Transport Rate: Oxygen Reduction on Single Submicrometer-Sized Pt Particles Supported on CarbonThe Journal of Physical Chemistry B, 2004
- Surface Coordination of Ruthenium Clusters on Platinum Nanoparticles for Methanol Oxidation CatalystsLangmuir, 2003
- Synthesis and Characterization of a Pt3Ru1/Vulcan Carbon Powder Nanocomposite and Reactivity as a Methanol Electrooxidation CatalystChemistry of Materials, 2003
- Fabrication of hcp-Co Nanocrystals via Rapid Pyrolysis in Inverse PS-b-PVP Micelles and Thermal AnnealingNano Letters, 2003
- Ethylene Hydrogenation over Platinum Nanoparticle Array Model Catalysts Fabricated by Electron Beam Lithography: Determination of Active Metal Surface AreaThe Journal of Physical Chemistry B, 2002
- Shape-Selective Preparation and Properties of Oxalate-Stabilized Pt ColloidLangmuir, 2002
- Hydrogenation of olefins in aqueous phase, catalyzed by polymer-protected rhodium colloids: kinetic studyCatalysis Today, 2001
- Preparation and characterisation of solvent-stabilised nanoparticulate platinum and palladium and their catalytic behaviour towards the enantioselective hydrogenation of ethyl pyruvateJournal of Molecular Catalysis A: Chemical, 1999
- Reduction of palladium (II) in aqueous solution: stabilization and reactions of an intermediate cluster and palladium colloid formationThe Journal of Physical Chemistry, 1992