I've to coating titanium foil substrate with two different materials, the right side with zeolites-Pt and the left side with zeolites-TiO2. What simple method should I used?
The following procedure describes coating titanium foil substrate with three different materials. In your case, you should use two solutions as solutions A and B with their composition and skip solution C.
Three coating solutions were prepared as follows:
Solution A:
6.2 cc of 1-butanol (99.8%) 0.5 cc HCL (37%) 2.8 g titanium (IV) butoxide lg RuCl3 • H2θ The materials were then mixed to form a homogeneous solution.
Solution B:
6.2 cc of 1-butanol (99.8%) 0.5 cc HCL (37%)
1.4g titanium (IV) butoxide lg RuCtø • 2H2θ
The materials were then mixed to form a homogeneous solution.
Solution C:
6.2 cc of 1-butanol (99.8%) 0.5 cc HCL (37%) 0.7g titanium (IV) butoxide lg RuCl3 • 2H2θ
The materials were then mixed to form a homogeneous solution.
Using the solutions described above, a titanium foil of approximately 25 microns thick was etched in a hot aqueous oxalic acid solution (10 wt.%) for 30 minutes and washed in an ultrasonic water bath and dried. A thin layer of coating of Solution A was painted on to one side of the titanium foil, and heated in air at about 85°C for between 5 and 10 minutes. The step was repeated by painting another layer on the other side of the titanium foil and again dried for 5-10 minutes at 75°C. Thereafter, the coated titanium foil was heated in air at 400°C for about ten minutes. The painting, heating, and reheating steps described above were repeated again using Solution A, in order to increase the overall thickness of the first material layer.
Thereafter, the same coating, heating, and reheating procedure was used to coat Solution B atop the first layers already painted onto the titanium substrate. The titanium foil was reheated in air at 400°C for 10 minutes. Finally, the same coating, heating, and reheating process was used for Solution C.
For more on this procedure, please use the following link: