Homogeneous catalysis
Heterogeneous catalysis
Very active and selective catalysts
New generation catalysts
Nanostructured metal powders
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Rhodium – Mesitylene in mesitylene solution Rhodium – THF in THF solution (Stabilized by trioctylamine (TOA)) Rhn nanoclusters ranging 0.5 – 1 nm in diameter Active in hydrogenation, hydroformylation and hydrosilylation reactions Excellent precursors for the deposition of activated Rh particles,ranging 1 – 2 nm in diameter, on C or solid oxide supports. J. Organomet. Chem., 487 (1995) 41 ; Sinth. Methods Organomet. and Inorg. Chemistry, Catalysis, Brauer, Herrmann, Vol.10, 64-71 (2002). Co (0) – Toluene in toluene solution (Stabilized by 2-butyne) Con microclusters, (n ≤ 10) as evidenced by EPR Active in the cyclococyclization of alkynes and nitriles;it has been proved successful even in hydroformylation reaction. Suitable for the deposition of activated Co particles, ranging 2 – 3 nm in diameter, on C or solid oxide supports. J. Mol. Catal., 56 (1989) 133. |
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Metal catalysts presently available
Homogeneous Catalysts |
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| Advanced nanostructured metal powders Catalysts by Small Metal Clusters,Hydrogenation catalysis,Very active and selective New generation catalysts, Homogeneous Heterogeneous Oxidation Polymerization catalysts, Production of Hetero Nanostructured metals catalysts,Bimetallic catalytic systems, Metal vapors technology technique |
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Platinum (0) – Mesitylene in mesitylene solution (Stabilized by vinylsiloxanes) Ptn nanoparticles ranging 0.5 - 1 nm, as evidenced by TOF-MS analysis Excellent catalyst for hydrosilylation reactions Excellent precursors for the deposition of Pt nanoparticles on C or solid oxide supports J. Organomet. Chem., 451 (1993) C4;
J. Mol. Catal., 91 (1994) 83
Fe(0) – Cycloolefins in aliphatic solvents Active catalysts for the cyclotrimerization of alkynes and for hydroformylation reactions Suitable for the deposition of active Fe nanoparticles on solid supports and for the preparation of magneto fluids
J. Organomet. Chem., 607 (2000) 57
An example of the catalytic activity and selectivity of homogeneous catalysts: Idrosilylation of vinyl compounds with a Pt-mesitylene solution obtained via MVS technique. In analogous conditions a Pt “Karstedt” catalyst does not catalyse the reaction.
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