Rhodium‐Cobalt Bimetallic Nanoparticles: A Catalyst for Selective Hydrogenation of Unsaturated Carbon‐Carbon Bonds with Hydrous Hydrazine
Our studies on the effect of metal compositions on the catalytic activity of the rhodium‐based bimetallic nanocatalysts revealed that the nanoparticles with a 4:1 ratio of rhodium to cobalt, were more active than the rhodium monometallic nanoparticles in the selective hydrogenation of unsaturated carbon‐carbon bonds with hydrous hydrazine as a hydrogen source. The nanocatalysts effected this hydrogenation process in good‐to‐excellent yields with high functional group tolerance, and could be reused 10 times without the loss of catalytic activity. The catalyst characterization by X‐ray photoelectron spectroscopy, transmission electron microscopy and line‐scanning analysis suggested that the coexistence of metallic rhodium and cobalt plays an important role in the enhancement of catalytic activity.
Document Type: Communications
Affiliations: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao west road 155#, Fuzhou, Fujian 350002, People's Republic of China, phone: (+86)-591-83771575, Fax: (+86)-591-83771575
Publication date: January 14, 2013