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A team of researchers at Rensselaer Polytechnic Institute has developed a new microfluidics-assisted technique for developing high-performance macroscopic graphene fibers. Graphene fiber, a recently discovered member of the carbon fiber family, has potential applications in diverse technological areas, from energy storage, electronics and optics, electro-magnetics, thermal conductor and thermal management, to structural applications.
Their findings are published in a newly released issue of Nature Nanotechnology. It has historically been difficult to simultaneously optimize both the thermal/electrical and the mechanical properties of graphene fibers. However, the Rensselaer team has demonstrated their ability to do both.
Macroscopic - Graphene - Fibers - Assembly - Graphene
Macroscopic graphene fibers can be manufactured by fluidics-enabled assembly from 2-D graphene oxide sheets dispersed in aqueous solutions forming lyotropic liquid crystal. Strong shape and size confinements are demonstrated for fine control of the graphene sheet alignment and orientation, critical for realizing graphene fibers with high thermal, electrical, and mechanical properties. This microfluidics-enabled assembly method also provides the flexibility to tailor the microstructures of the graphene fibers by controlling flow...
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