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Platinum Nanoparticles on Silica Obtained Under Mild Conditions Using cis-PtCl2(CO)2 as Precursor |
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| Authors: | Daniela Belli Dell'Amico Fausto Calderazzo Carmine Ciofi Fabio Garbassi Luciano Grande Guglielmo Masciarelli |
| Institution: | (1) Dipartimento di Chimica e Chimica Industriale, Sezione di Chimica Inorganica, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy;(2) Università di Pisa, Dipartimento di Elettronica, Informatica e Telecomunicazioni, Facoltà di Ingegneria, Via Diotisalvi 2, I-56126 Pisa, Italy;(3) Enichem S.p.A., Centro Ricerche Novara,  Istituto G. Donegani , Via G. Fauser 4, I-28100 Novara, Italy |
| Abstract: | Physi-/chemisorption of cis-PtCl2(CO)2 on partially dehydroxylated amorphous silica followed by exposure to water vapor at room temperature or at 210°C produces platinum nanoparticles, through a reductive process involving both coordinated carbon monoxide and water. Incomplete removal of hydrogen-bonded water from the silica surface increases the implantation yield. XPS and TEM measurements are reported. The silica-supported platinum is catalytically active towards the hydrogenation of cyclohexene. |
| Keywords: | Platinum nanoparticles silica catalysis hydrogenation |
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