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US 10,882,278 B2Granted
Palladium composite membrane
OwnerAli Akbar Babalou, Sona Jamshidiinventors
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Abstract
A composite membrane for hydrogen separation and purification, including: a modified and activated support, a Palladium (Pd) layer, and an interstice layer between the second surface-modifying layer and the Pd layer. The support includes a support substrate, a first surface-modifying layer on the support substrate, and a second surface-modifying layer on the first surface-modifying layer.
Claims13
A method for fabricating a composite membrane, the method comprising:
- coating a first surface-modifying layer onto a support comprising coating a pore-size surface-modifying agent onto the support;
- and
- obtaining a surface-modified support with a relative roughness in a nanometric scale of less than 100 nm by coating a second surface-modifying layer onto the first surface-modifying layer comprising coating a roughness surface-modifying agent onto the first surface-modifying layer;
- obtaining a surface-activated support by organic-inorganic activating the surface-modified support;
- and
- depositing a Pd layer on the surface-activated support;
- wherein:
- coating the first surface-modifying layer onto the support comprises coating one or more TiO2-Boehmite layers onto the support, and
- coating the second surface-modifying layer onto the first surface-modifying layer comprises coating one or more γ-alumina layers onto the first surface-modifying layer.
6 more elements
A method for fabricating a composite membrane, the method comprising:
- fabricating a tubular α-alumina support from α-alumina powder using a gel-casting process;
- coating a first surface-modifying layer onto a support comprising coating one or more layers of a pore-size surface-modifying agent onto the support, the pore-size surface-modifying agent comprising TiO2-Boehmite;
- obtaining a surface-modified support with a controlled roughness in a nanometric scale of less than 100 nm by coating a second surface-modifying layer onto the first surface-modifying layer comprising coating one or more layers of a roughness surface-modifying agent onto the first surface-modifying layer, the roughness surface-modifying agent comprising γ-alumina;
- obtaining a surface-activated support by organic-inorganic activating the surface-modified support;
- and
- depositing a Pd layer on the surface-activated support.
3 more elements
Dependencies are inferred from the claim text.