Synthesis of monodispersed bimetallic palladium-copper nanoscale colloids

• Published in: Chemistry of materials Vol. 5; no. 3; pp. 254 - 256
• Main Authors: Bradley, John S, Hill, Ernestine W, Klein, Carl, Chaudret, Bruno, Duteil, Anne
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.03.1993
• Subjects: 360102 > Metals & Alloys > Structure & Phase Studies; CARBON COMPOUNDS; CARBON MONOXIDE; CARBON OXIDES; CHALCOGENIDES; CHEMICAL PREPARATION; Chemistry; Colloidal gels. Colloidal sols; Colloidal state and disperse state; COLLOIDS; COPPER COMPOUNDS; DISPERSIONS; ELECTRON MICROSCOPY; Exact sciences and technology; General and physical chemistry; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; MATERIALS SCIENCE; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PALLADIUM COMPOUNDS; SORPTION; SORPTIVE PROPERTIES; SURFACE PROPERTIES; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS 400201 > Chemical & Physicochemical Properties; TRANSMISSION ELECTRON MICROSCOPY; Colloidal gel; Transmission electron microscopy; Pyrrolidone(vinyl) polymer; Palladium; Infrared spectrum; Aggregate; Copper
• ISSN: 0897-4756; 1520-5002
• DOI: 10.1021/cm00027a005

Bimetallic clusters have been the subject of many studies of the surface chemistry and catalytic properties of metal crystallites on solid supports. Mixtures of palladium acetate and copper acetate were refluxed in 2-ethoxyethanol in the presence of poly(vinylpyrrolidone) to give 40-[angstrom] alloy nanoclusters. TEM and EDAX analysis showed that the particles were homogeneously bimetallic and crystalline, with a composition determined by the ratio of the metal acetates used. Carbon monoxide adsorbed on the colloidal particles binds reversibly to both metals. 9 refs., 3 figs.