Ctci Foundation

Feng-Yun Wang

Soofin Cheng

A method for the preparing pure, thermally stable and high surface area ceria is described, wherein the ceria maintains a surface area of 12 m/g after calcination at 980&#xb0; C. in air for 4 hours. In the method, an aqueous solution containing Ce, Mg, organic acid and organic polymer is prepared and then evaporated to obtain a gel. The gel is calcined to obtain a mixed oxide, and then MgO is leached from the mixed oxide with a solvent to obtain raw ceria. The raw ceria is then washed, filtered and dried to obtain a ceria product.

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Taipei, Taiwan

Feng-Yun Wang