Preparation and Its Catalytic Hydrogenation Behaviour of Silica Gel-Supported Polyvinylpyridine-Palladium Catalysts

Abstract

Abstract: Some basic polymers, such as poly-4-vinylpyridine and poly-2-vinylpyridine, were adsorbed on the surface of silica gel with the aid of the weak acidity of silica. The supported polymers were then complexed with PdCl₂ and reduced with NaBH₄, the title catalysts were synthesized. The structures of the catalysts were characterized by XPS, UV/Vis, scanning and transmission electron microscope etc. The influence of preparation conditions and composition of the catalysts on the catalytic activity, stability and life period was examined. The catalysts synthesized possess a high catalytic activity for the hydrogenation of methylacrylate.

Key words: Polyvinylpyridine, Palladium catalyst, Silica gel, Catalytic hydrogenation

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Yang Shiyong, Sun Juntan, Li Hong, He Binglin . Preparation and Its Catalytic Hydrogenation Behaviour of Silica Gel-Supported Polyvinylpyridine-Palladium Catalysts[J]. Chem. J. Chinese Universities, 1990, 11(6): 638.

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Preparation and Its Catalytic Hydrogenation Behaviour of Silica Gel-Supported Polyvinylpyridine-Palladium Catalysts

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