Preparation and Characterization of Rh Catalyst Supported on Nanoporous Alumina for the Ethylene Hydroformylation
Abstract:Nanoporous γ-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 γ-alumina support.
Document Type: Research Article
Publication date: 2010-01-01
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