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Novel single-site platinum catalysts have been synthesized by reacting platinum(II) organometallics with partially dehydroxylated silica. The resulting materials have been characterized by various methods such as IR, MAS NMR, and EXAFS. Further, the single-site platinum catalysts were calcined in air to remove the ligand and produce nanosized platinum particles, that were characterized by TEM and H2 chemisorption. All catalysts were tested for the hydrogenation of toluene. The single-site platinum catalysts were less active than a commercial Pt/SiO2 catalyst with comparable platinum loading, and this has been ascribed to ligand effects. Conversely, the nanosized platinum catalysts were more active than the commercial Pt/SiO2 catalyst due to their high dispersion and small particle sizes. © 2012 American Chemical Society.

Original publication

DOI

10.1021/om200778r

Type

Journal article

Journal

Organometallics

Publication Date

13/08/2012

Volume

31

Pages

5243 - 5251