The loading of pre-treated amorphous silica with platinum or palladium was carried out by using the molecular precursors Pt2(m-Cl)2Cl2(CO)2, or Pd2(m-Cl)2Cl2(CO)2, respectively, which contain the required amount of coordinated CO to carry out the formation of the metal particles upon contact with moisture. The reactivity of the well-soluble mononuclear platinum complex cis-PtCl2(CO)2 with stoichiometric amounts of water was investigated either under N2 or CO. The metal nanoparticles produced on the silica matrix have been characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The catalytic performance of the silica-supported metals thus produced was evaluated in the hydrogenation of cyclohexene.

Loading silica with Metals (Palladium or Platinum) Under Mild Conditions by Using Well-Defined Molecular Precursors

BELLI, DANIELA;
2009-01-01

Abstract

The loading of pre-treated amorphous silica with platinum or palladium was carried out by using the molecular precursors Pt2(m-Cl)2Cl2(CO)2, or Pd2(m-Cl)2Cl2(CO)2, respectively, which contain the required amount of coordinated CO to carry out the formation of the metal particles upon contact with moisture. The reactivity of the well-soluble mononuclear platinum complex cis-PtCl2(CO)2 with stoichiometric amounts of water was investigated either under N2 or CO. The metal nanoparticles produced on the silica matrix have been characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The catalytic performance of the silica-supported metals thus produced was evaluated in the hydrogenation of cyclohexene.
2009
Lidia, Armelao; Belli, Daniela; Roberto, Braglia; Fausto, Calderazzo; Fabio, Garbassi; Gianluigi, Marra; Alessandra, Merigo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/132326
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