首页|Tuning the linear actuation of multiwall carbon nanotube fibers with carbide-derived carbon
Tuning the linear actuation of multiwall carbon nanotube fibers with carbide-derived carbon
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NSTL
Elsevier
Fibers made from carbon nanotubes (CNT) have received a lot of attention, including for the intended appli-cations in "artificial muscles ". Combination of CNT fibers with high capacitance particles such as carbide-derived carbon (CDC) is the focus of this research. A dielectrophoretic method was used to form novel CNT-CDC fibers with different wt% of CDC from 25% to 75%. The CNT-CDC fibers were compared to pristine CNT fibers in their electromechanical response to different electrochemical driving regimes (cyclic voltammetry, square wave po-tential steps) in an organic electrolyte. The best performance in strain and stress was achieved by CNT-CDC(50%) with nearly double charge density and 1.5 times higher electronic conductivity in comparison to pristine CNT fibers. The determination of the specific capacitance over chronopotentiometric measurements revealed 175 F g(-1) (0.54 A g(-1)) for CNT-CDC(75%) fibers, while the best stability and charging durability was shown by CNT-CDC(50%). The CNT-CDC fibers demonstrated consistent dual functionality for potential applications in linear actuators, supercapacitors or in multifunctional designs.
NSTL
Elsevier
