Carbon nanofibers obtained from electrospinning process

Abstract

Electrical property of macroscopic graphene composite fibers prepared by chemical vapor deposition Haibin Sun, Can Fu, Yanli Gao et al.-Dielectric transition of polyacrylonitrile derived carbon nanofibers Jiangling Li, Shi Su, Lei Zhou et al.

Highly porous multiwalled carbon nanotube buckypaper using electrospun polyacrylonitrile nanofiber as a sacrificial material

“…The electro-spinning technique is a cost-effective, simple, and fast process that allows to electrospun a wide range of polymers [ 23 , 24 , 25 , 26 , 27 ]. Also, the diameter of the fibers can vary from a few nanometers to a few micrometers and the fiber length can be several centimeters to several meters only by varying the polymer employed and the parameters of process, such as concentration of polymer solution, working distance, collector rotation, infusion rate, and electrical potential [ 27 , 28 , 29 ]. These variables allow the electro-spinning technique to be a highly versatile process.…”

Obtenção de nanofios de carbono a partir de copolímero de PAN eletrofiados para aplicação como supercapacitores

“…Os dois picos apresentados nas análises de ambas as amostras são referentes as bandas D e G. A banda D localizada para a NfcPANH em aproximadamente 1360cm -1 e para a NfcPAN6MA em aproximadamente 1356 cm -1 é relacionada a defeitos e estruturas desordenadas de carbono, enquanto a banda G localizada em aproximadamente 1584 cm -1 para a NfcPANH e 1587 cm -1 para a NfcPAN6MA é relacionada a estruturas grafíticas cristalinas [34][35][36]. A relação entre a área relacionada a banda D (I D ) e a área relacionada a banda G (I G ) é utilizada como um fator para medição do grau de cristalinidade de materiais carbonáceos (I D / I G ).…”

“…Quando o campo elétrico rompe a tensão superficial da gotícula um jato de solução polimérica carregado é atraído para o coletor [7]. O solvente evapora de forma contínua e rápida enquanto o jato é esticado por repulsão eletrostática formando no coletor aterrado nanofibras contínuas solidificadas [8][9][10][11].…”

Strategies in Precursors and Post Treatments to Strengthen Carbon Nanofibers

“…A possible reason for the limited mechanical performance is the easy fraction of CNF during the stabilization and carbonization processes, as unintentionally revealed by SEM characterization, see Refs. [8,[103][104][105][106][107]. Thus the composition with engineering polymers or CNTs has become a solution to improve the mechanical properties of CNF films [107,108].…”

“…Producing carbon fibers with diameters at sub-micrometer scale, namely carbon nanofibers (CNFs), has attracted growing attention, due to the comprehensive properties such as electrical conductivity, chemical resistance, thermal stability, ultra high specific surface area as well as high stiffness. CNFs are defined as cylindrical nanostructures with graphene layers constructed in the shape of cups, cones, or plates, with an average diameter of 70-200 nm and an average length of 50-200 μm [1][2][3][4][5][6][7][8][9][10]. Different from carbon fibers, which have been particularly used to develop high-performance fiber-reinforced composites in automotive and aerospace industries, CNFs are more used in composite materials [2,[11][12][13], supercapacitors [14][15][16][17], catalyst support [18][19][20], solar cells [21], sensors [22,23], thermoacoustics [24], and so forth, as schematically shown in Fig.…”