| 摘要 |
The present invention provides a process for producing high surface area, nanoporous ceramic oxide catalyst structures and catalyst structures derived from the process. In a method aspect of the present invention, a process of producing high surface area, nanoporous ceramic oxide catalyst structures is provided. The method involves the steps of: a) making an aqueous feedstock solution, wherein the solution comprises a first metal salt and a second metal salt, and wherein the first metal salt is a thermally labile metal salt, and wherein the second metal salt is a water soluble, thermally stable salt (typically an alkali metal salt); b) spray drying the feedstock solution to provide a first intermediate product; c) calcining the first intermediate product to form a second intermediate product; d) washing the second intermediate product to remove the second metal salt and form a third intermediate product; and, e) filtering and drying the third intermediate product, thereby producing a high surface area, nanoporous ceramic oxide catalyst structure with a hollow sphere morphology. |
