Catalyst parameters determining activity and selectivity of supported gold nanoparticles for the aerobic oxidation of alcohols: the molecular reaction mechanism.

@article{Abad2008CatalystPD,
  title={Catalyst parameters determining activity and selectivity of supported gold nanoparticles for the aerobic oxidation of alcohols: the molecular reaction mechanism.},
  author={Alberto Abad and Avelino Corma and Hermenegildo Garc{\'i}a},
  journal={Chemistry},
  year={2008},
  volume={14 1},
  pages={
          212-22
        }
}
As previously reported for for solventless reactions, gold nanoparticles supported on ceria are also excellent general heterogeneous catalysts for the aerobic oxidations of alcohols in organic solvents. Among organic solvents it was found that toluene is a convenient one. A systematic study on the influence of the particle size and gold content on the support has established that the activity correlates linearly with the total number of external gold atoms, and with the surface coverage of the… 
Catalysis of Metal Oxide-Supported Gold Nanoparticles in Liquid Phase
Catalytic properties of gold remarkably change by the size of gold particles and the kind of supports. An extremely high catalytic activity for aerobic oxidation of glucose was achieved when the size
Utilizing Benign Oxidants for Selective Aerobic Oxidations Using Heterogenized Platinum Nanoparticle Catalysts.
By using platinum nanoparticle catalysts that are generated in situ by extrusion from a porous copper chlorophosphate framework, the role of oxidants in the selective oxidation of benzyl alcohol to
Oxidation of alcohols using supported gold and gold–palladium nanoparticles
A key discovery in the last two decades has been the realisation that gold, when prepared as supported nanoparticles, is exceptionally effective as an oxidation catalyst, particularly for the
Oxidant-free dehydrogenation of alcohols heterogeneously catalyzed by cooperation of silver clusters and acid-base sites on alumina.
TLDR
This example demonstrates that catalysts analogous to those based on of platinum group metals can be designed with use of a less expensive d(10) element--silver--through optimization of metal particle size and the acid-base natures of inorganic supports.
Water Influences the Activity and Selectivity of Ceria-Supported Gold Catalysts for Oxidative Dehydrogenation and Esterification of Ethanol
In this study, we show that water influences the activity and selectivity of a ceria-supported gold catalyst for the oxidative dehydrogenation and esterification of ethanol in a fixed-bed flow
Origin and activity of gold nanoparticles as aerobic oxidation catalysts in aqueous solution.
TLDR
It is demonstrated that gold nanoparticles are capable to activate O(2) at the solid-liquid interface, and the theoretical results are utilized to rationalize experimental findings and provide a firm basis for utilizing nanoparticle gold as aerobic oxidation catalysts in aqueous surroundings.
Heterogeneous cobalt catalysts for the acceptorless dehydrogenation of alcohols
A series of transition metal(M)-loaded TiO2 catalysts (M/TiO2) and Co-loaded catalysts on various support materials were prepared by an impregnation method, followed by in situ H2-reduction at 400
Influence Type and Temperature of Activation on the Catalytic Activity of Derived Form of Au101 Nanocatalysts
Recently, gold nanoparticles attracted an increased attention due to unusual and somewhat unexpected catalytic properties especially pronounced in the oxidation of some organic compounds. Gold
Palladium nanoparticles in ionic liquids: reusable catalysts for aerobic oxidation of alcohols
The search for more efficient catalytic systems that might combine the advantages of both homogenous (catalyst modulation) and heterogenous catalysis (catalyst recycling) is still the challenge of
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 49 REFERENCES
Scope, kinetics, and mechanistic aspects of aerobic oxidations catalyzed by ruthenium supported on alumina.
TLDR
Results and kinetic isotope effects indicate that beta-elimination from the ruthenium alcoholate species is a rate-determining step.
Gold on Carbon as a New Catalyst for Selective Liquid Phase Oxidation of Diols
Catalytic oxidation of vicinal diols to α-hydroxy carboxylates with dioxygen in alkaline solution has been performed by using gold based catalysts. The optimization of the catalytic system has
Solvent-Free Oxidation of Primary Alcohols to Aldehydes Using Au-Pd/TiO2 Catalysts
TLDR
It is shown that Au/Pd-TiO2 catalysts give very high turnover frequencies (up to 270,000 turnovers per hour) for the oxidation of alcohols, including primary alkyl alcohols and the addition of Au to Pd nanocrystals improved the overall selectivity.
Nanoparticles as recyclable catalysts: the frontier between homogeneous and heterogeneous catalysis.
TLDR
The Review presents the recent developments and the use of NP catalysis in organic synthesis, for example, in hydrogenation and C--C coupling reactions, and the heterogeneous oxidation of CO on gold NPs.
Oxidation of alcohols with molecular oxygen on solid catalysts.
TLDR
It is considered more feasible that the rate-deter-mining step is the cleavage of the C-H bond at the R-carbon atom, and the active site consists of an ensemble of metallic Auatoms and a cationic Au.
Catalysis By Gold
Despite occasional references in the older literature to the ability of gold to catalyze certain reactions, the metal has until recently had the reputation of being one of the least catalytically
...
1
2
3
4
5
...