Ruthenium Nanoparticles Loaded on Carbon as Effective Catalyst for Highly Selective Hydrogenation of

Supported Ru-based catalysts,prepared by a surfactant-stabilized colloidal method,exhibited a good selectivity to bis(4-aminocyclohexyl)methane via the hydrogenation of 4,4'-methylenedianiline.Transmission electron microscopy(TEM) and X-ray diffraction(XRD) characterization showed Ru nanoparticles were well-dispersed on activated carbon,leading to the high activity and selectivity to the product.