A group of researchers at Rensselaer Polytechnic Institute has actually established a brand-new microfluidics-assisted method for establishing high-performance macroscopic graphene fibers. Graphene fiber, a just recently found member of the carbon fiber household, has prospective applications in varied technological locations, from energy storage, electronic devices and optics, electro-magnetics, thermal conductor and thermal management, to structural applications.
Their findings are released in a recently launched concern of Nature Nanotechnology. It has actually traditionally been challenging to all at once enhance both the thermal/electrical and the mechanical residential or commercial properties of graphene fibers. Nevertheless, the Rensselaer group has actually shown their capability to do both.
Macroscopic graphene fibers can be produced by fluidics-enabled assembly from 2D graphene oxide sheets distributed in liquid options forming lyotropic liquid crystal. Strong sizes and shape confinements are shown for great control of the graphene sheet positioning and orientation, vital for understanding graphene fibers with high thermal, electrical, and mechanical residential or commercial properties. This microfluidics-enabled assembly technique likewise offers the versatility to customize the microstructures of the graphene fibers by managing circulation patterns.
“The control of different flow patterns offers a unique opportunity and flexibility in tailoring macroscopic graphene structures from perfectly aligned graphene fibers and tubes to 3D open architecture with vertically aligned graphene sheet arrangement,” stated Jie Lian, a teacher in the Rensselaer Department of Mechanical, Aerospace, and Nuclear Engineering (HAIR) and the lead author on the short article.
The current short article constructs on work by Lian’s group that was formerly released in Science in2015 This work, which is sponsored by the National Science Structure, is a cooperation with fellow HAIR researchers, consisting of Partner Teacher Lucy Zhang and Teacher Suvranu De, who heads the department.
“This research paves the way for new sciences to optimize the fiber assembly and microstructure to develop high-performance graphene fibers,” stated Lian. “This approach could be extended to other materials to manufacture hierarchical structures for diverse functional applications.”