title: Preparation and characterization of Rh catalyst supported on nanoporous alumina for the ethylene hydroformylation.
abstract: Nanoporous gamma-aluminas were prepared by a sol-gel method with and without surfactant, and characterized by nitrogen adsorption-desorption, transmission electron microscopy (TEM), X-ray diffraction (XRD) and temperature programmed reduction (TPR). The resulting materials were applied to Rh catalyst supports for the ethylene hydroformylation. The ordered nanoporous alumina (A-1) which was prepared using surfactant, showed well-developed pore structures with high surface area. Rh catalyst supported on A-1 alumina (Rh/A-1) exhibited higher catalytic activity in the ethylene hydroformylation than other Rh catalysts. It is believed that the high catalytic performance of Rh/A-1 resulted from the well-developed pore structure with high surface area of ordered nanoporous A-1 and consequently finely dispersed Rh particle on the surface of gamma-alumina support.
authors.affiliation: Department of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 151-742, Korea.
authors.forename: You Jung
authors.initials: YJ
authors.lastname: Kim
authors.forename: Ji Bong
authors.initials: JB
authors.lastname: Joo
authors.forename: Hui Chan
authors.initials: HC
authors.lastname: Kim
authors.forename: Jongheop
authors.initials: J
authors.lastname: Yi
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D002384:Catalysis; D005030:Ethylenes / Q000737:chemistry*; D007850:Lauric Acids / Q000737:chemistry; D008823:Micelles; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D011312:Pressure; D012238:Rhodium / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D005030:Ethylenes; D007850:Lauric Acids; D008823:Micelles; D013501:Surface-Active Agents; C030358:lauric acid; C036216:ethylene; D012238:Rhodium; D000537:Aluminum Oxide