Metal oxide porous ceramic membranes with small pore sizes

Details Metal oxide porous ceramic membranes with small pore sizes Metal oxide porous ceramic membranes with small pore sizes

C - Chemistry, Metallurgy

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B

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C04B 38/06 (2006.01) B01D 71/02 (2006.01) B01J 8/00 (2006.01) B01J 19/24 (2006.01) B01J 35/06 (2006.01) C04B 35/46 (2006.01) C04B 35/48 (2006.01) C04B 35/486 (2006.01) C04B 35/49 (2006.01) C04B 35/624 (2006.01)

Patent

CA 2027678

A method is disclosed for the production of metal oxide ceramic membranes of very small pore size. The process is particularly useful in the creation of titanium and other transition metal oxide membranes. The method utilizes a sol-gel process in which the rate of particle formation is controlled by substituting a relatively large alcohol in the metal alkoxide and by limiting the available water. Stable, transparent metal oxide ceramic membranes are created having a narrow distribution of pore size, with the pore diameter being manipulable in the range of 5 to 40 Angstroms.

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