RPI ID: 2004-001-201

Innovation Summary:
This invention discloses a method for fabricating carbon nanotube (CNT) foam structures by wetting vertically aligned CNT arrays with a liquid and then evaporating the liquid to induce capillary-driven densification. The result is a mechanically robust, patterned CNT foam with tunable density and geometry. The process enables the transformation of aligned CNT arrays into complex 3D architectures without compromising their nanoscale alignment or properties. These foams exhibit high surface area, electrical conductivity, and mechanical resilience, making them ideal for multifunctional applications.

Challenges / Opportunities:
Conventional CNT assemblies often lack structural integrity or are difficult to pattern at scale. This invention overcomes those limitations by introducing a scalable, template-free method to create patterned, densified CNT structures. It opens opportunities in fields requiring lightweight, conductive, and mechanically stable nanomaterials, such as aerospace, energy storage, and flexible electronics.

Key Benefits / Advantages:
✔ Capillary densification enables precise patterning and structural control
✔ Retains alignment and properties of original CNT arrays
✔ Lightweight, porous, and conductive foam structure
✔ Compatible with microfabrication and MEMS integration

Applications:
• Lightweight structural components in aerospace and robotics
• Electrodes for supercapacitors and batteries
• Thermal interface materials and EMI shielding
• Scaffolds for tissue engineering and biosensors

Keywords:
#carbonnanotubefoam #nanomaterials #capillarydensification #patternedCNTs #lightweightstructures

Intellectual Property:
US Issued Patent 7,473,411