Laser Carbonization of PAN-Nanofiber Mats with Enhanced Surface Area and Porosity.
Here we present a novel laser process to generate carbon nanofiber nonwovens from polyacrylonitrile. We produce carbon nanofabrics via electrospinning followed by infrared laser-induced carbonization, facilitating high surface area and well-controlled hierarchical porosity. The process allows precise control of the carbonization conditions and provides high nanoscale porosity. In comparison with classical thermal carbonization, the laser process produces much higher surface areas and smaller pores. Furthermore, we investigate the carbonization performance and the morphology of polyacrylonitrile nanofibers compounded with graphene nanoplatelet fillers.
DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University , Forckenbeckstraße 50, 52074 Aachen, Germany.
Dennis
D
Go
Fraunhofer Institute for Laser Technology (ILT) , Steinbachstraße 15, 52074 Aachen, Germany.
Philipp
P
Lott
Fraunhofer Institute for Laser Technology (ILT) , Steinbachstraße 15, 52074 Aachen, Germany.
Jochen
J
Stollenwerk
DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University , Forckenbeckstraße 50, 52074 Aachen, Germany.
Helga
H
Thomas
DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University , Forckenbeckstraße 50, 52074 Aachen, Germany.
Martin
M
Möller
DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University , Forckenbeckstraße 50, 52074 Aachen, Germany.
Alexander J C
AJC
Kuehne
carbon fibers; electro spinning; graphene; polyacrylonitrile; porosity