Near-Monodisperse Tetrahedral Rhodium Nanoparticles on Charcoal: The Shape-Dependent Catalytic Hydrogenation of Arenes

Authors


  • This work was supported by the Hydrogen Energy R&D Center, a 21st century Frontier R&D Program funded by the Ministry of Science and Technology of Korea. K.H.P. is grateful for a grant from the Korea Research Foundation (MOEHRD) (KRF-2005-005J11901).

Abstract

original image

The shape of things to come? Monodisperse (4.9±0.4)-nm tetrahedral rhodium nanoparticles on charcoal (▴/C) are compared to (4.8±0.4)-nm spherical rhodium nanoparticles on charcoal (•/C) and commercial Rh/C as a catalyst for the hydrogenation of anthracene (see picture). The former is 5.8- and 109-times more active than the latter two, respectively. It also shows a higher selectivity and excellent activity in the hydrogenation of several other arenes.

Ancillary