Copper nitrate solid support

Samples of Cu-Ce oxides are prepared by incipient wetness impregnation method. Cerium hydroxide is precipitated by adding cerium nitrate to a concentrated solution of NaOH. The precipitate is thoroughly washed with warm water, filtered and dried at 373 K before its calcination at 673 K for 6 hours in a flow of dry air. Copper nitrate of different amounts is then impregnated, at room temperature, on the oxide support. The samples are dried at 373 K and calcined at 673, 873 or 1073 K for 6 hours in a flow of dry air. Samples are denoted by lCuxCe673, lCuxCe873 and lCuxCel073 where x indicates the atomic ratio of cerium to copper in the solid, and the last number indicates the calcination temperature value of the sample. 

The oxidation of alcohols, in particular secondary alcohols, can be achieved using many metal nitrates in combination with a solid support. For example, copper nitrate on silica gel gives a 98% yield of ketone on... 

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