Tuning the structure and catalytic activity of Ru nanoparticle catalysts by single 3d transition-metal atoms in Ru12-metalloporphyrin precursors

Papers published
Satoshi Muratsugu*, Atsuki Yamaguchi, Gen-ichi Yokota, Tomoaki Maeno, and Mizuki Tada, Chem. Commun., 2018, 54, 4842-4845. DOI: 10.1039/c7cc09862f
  • Tuning the catalytic performance of noble-metal nanoparticles/nanoclusters by the addition of second (or even third) transition metals/metal oxides has attracted considerable attention in various fields of catalysis; however, there have been few reports to date concerning the influence of additional 3d transition metals/metal oxides on the structure and catalytic performance of noble-metal nanoparticles, especially for those obtained from identical precursor structures. In this study, Ru nanoparticle catalysts were prepared from Ru12-metalloporphyrin complex precursors containing 3d transition-metal atoms attached to SiO2 surfaces. The single 3d metal atoms at the central position of the Ru12-metalloporphyrin complex precursors exerted a significant influence on the structures and hydrogenation performance of the Ru nanoparticles on the SiO2 surfaces. The Ru12–Cu–porphyrin complex afforded positively-charged Ru nanoparticles, which would provide high activity toward aromatic hydrogenation.

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