A 5% Pt/C catalyst with ~20 nm cubic platinum particles was prepared using a traditional preparation method (i.e. precursor impregnation, calcination, and reduction) and choosing a hydrophobic solvent in the impregnation procedure. These 20 nm cubic Pt particles showed 99.4 %selectivity for the hydrogenation of o-chloronitrobenzene (o-CAN) and 88.7% selectivity for reductive alkylation of aniline. We demonstrate that traditional preparation methods also can achieve precise nano-particle shape control as compared to the commonly used method of impregnating supports with a pre-prepared nano-particle colloid with already well defined particle morphology.
Journal: TechConnect Briefs
Volume: 4, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 4
Published: May 20, 2007
Pages: 387 - 388
Industry sector: Advanced Materials & Manufacturing
Topics: Nanoparticle Synthesis & Applications