Porous nanocomposites with integrated internal domains: application to separation membranes

Area of Science:

• Materials Science
• Chemical Engineering
• Nanotechnology

Background:

• Layered asymmetric membranes offer balanced properties and multifunctionality.
• However, inherent layered structures lead to delamination and substructure resistance issues.

Purpose of the Study:

• To present a strategy for integrating traditional layered structures into continuous porous networks.
• To overcome limitations associated with conventional layered membrane designs.

Main Methods:

• Infiltration of microparticles and nanoparticles into targeted regions of a porous scaffold.
• Creation of internal active domains within the porous structure.
• Demonstration of the method's general applicability across various particle types and dimensions.

Main Results:

• Fabricated internal active domains with adjustable dimensions, pore size, and material composition.
• Eliminated external layered structures, thereby resolving delamination and substructure resistance problems.
• Showcased the method's versatility for diverse particle integration.

Conclusions:

• The developed technique offers a general and adaptable approach for creating advanced porous materials.
• This integration strategy eliminates drawbacks of traditional layered structures.
• The method holds potential for applications in solid oxide fuel cells, lithium-ion batteries, and other layered devices.