Very active and selective catalysts Heterogeneous catalysis

Very active and selective catalysts - Heterogeneous catalysis

Nanostructured metal catalysts,Catalysis by Small Metal Clusters, Nanostructured metals,Hetero Nanostructured metal,Metal vapors technique,Carbon-Carbon coupling reactions catalysts,Analyzing of Materials,Homogeneous catalysis,New generation catalysts,Nanostructured metal powders,Oxidation catalysts,Advanced Catalysts,Very active and selective catalysts,Hydrogenation catalysts,Metal vapors technology,Bimetallic catalytic systems,Advanced nanostructured metal,Heterogeneous catalysis,Production of Nanostructured metal catalysts,Polymerization catalysts,Nanostructured Metal

New generation catalysts

Nanostructured metal powders

Bimetallic catalytic systems

Hydrogenation catalysts

Carbon-Carbon coupling reactions catalysts

Rhodium – Mesitylene in mesitylene solution

Rhodium – THF in THF solution

(Stabilized by trioctylamine (TOA))

Rh_n 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) Co_n 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.

Homogeneous Catalysts

Metal catalysts presently available

Production of Hetero Nanostructured metals catalysts,Very active and selective New generation catalysts,Bimetallic catalytic systems,Advanced nanostructured metal powders Catalysts by Small Metal Clusters,Hydrogenation catalysis, Homogeneous Heterogeneous Oxidation Polymerization catalysts, Metal vapors technology technique

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. Au (0) – Acetone in acetone solution Au_n microclusters (n<10) stabilized by acetone; as shown by TOF-MS analyses Active catalysts* in oxygenation reactions with molecular oxygen* 9^Th FECS Conference, Bordeaux (F), 2004 29 August – 1 September, Abstract p.353 Platinum (0) – Mesitylene in mesitylene solution (Stabilized by vinylsiloxanes) Pt_n 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 Rhodium – Mesitylene in mesitylene solution Rhodium – THF in THF solution (Stabilized by trioctylamine (TOA)) Rh_n 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) Co_n 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. 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 Palladium (0) – Mesitylene in mesitylene solution (Stabilized by TOA) Pd_n nanoparticles ranging 0.5 - 1 nm Active in Heck reactions Suitable for the deposition of active Pd nanoparticles, ranging 1 – 2 nm in diameter, on C or solid oxide supports 2Th European catalysis* Symposium Pisa (Italy), 23-26 September 2001, Abstract P33*

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