title: Loading silica with metals (palladium or platinum) under mild conditions by using well-defined molecular precursors.
abstract: The loading of pre-treated amorphous silica with platinum or palladium was carried out by using the molecular precursors Pt2(micro-Cl)2Cl2(CO)2, or Pd2(micro-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.
authors: ISTM-CNR and INSTM-Dipartimento di Scienze Chimiche-Università di Padova-Via Marzolo, 1-35131, Padova, Italy. lidia.armelao@unipd.it
authors: Lidia
authors: L
authors: Armelao
authors: Daniela
authors: D
authors: Belli Dell'Amico
authors: Roberto
authors: R
authors: Braglia
authors: Fausto
authors: F
authors: Calderazzo
authors: Fabio
authors: F
authors: Garbassi
authors: Gianluigi
authors: G
authors: Marra
authors: Alessandra
authors: A
authors: Merigo