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The control of the growth of Pt clusters in solution: A way to prepare Pt particles of tailored size |
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| Authors: | Gloria Uccello-Barretta Claudio Evangelisti Patrizio Raffa Samuele Nazzi Giovanni Vitulli Piero Salvadori |
| Institution: | a Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, 56126 Pisa, Italy b Advanced Catalyst s.r.l., Via Risorgimento 35, 56126 Pisa, Italy c Scuola Normale Superiore, Piazza dei Cavalieri, 7, 56126 Pisa, Italy d Dipartimento di Chimica IFM and Nanostructured Interfaces and surfaces (NIS), Universita’ di Torino, Via P. Giuria, 7, 10125 Torino, Italy |
| Abstract: | The growth of Pt particles in mesitylene-solvated metal atoms, obtained by metal vapour synthesis (MVS), has been followed at two temperatures (−40 and 25 °C) by NMR DOSY technique. The addition of 1,3-divinyltetramethyldisiloxane (DVS) at different time allows to quench the growth process and to make the resulting thermally stable solutions suitable for the evaluation of the Pt particles size at that moment. These solutions can be conveniently used to prepare supported Pt systems containing Pt particles of tailored size. |
| Keywords: | MVS synthesis DOSY NMR Pt nanoparticles |
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