Defluorination-enhanced hydrogen adsorptivity of activated carbon fibers

The surface chemical properties of multi-walled carbon nanotubes modified by thermal fluorination for electric double-layer capacitor

“…fluorination temperature from the 30TFC to the 200TFC samples. However, the concentration of C F bonds decreased when the fluorination temperature was increased to 400 • C. As mentioned above, this result was attributed to the effects of the high thermal energy available to break the C F bonds and remove C F by forming fluorinated carbon gases, such as CF 4 and C 2 F 6 , at approximately 300 • C [32,34,35].…”

“…In the thermally fluorinated MWCNTs, new components appear at higher binding energies: approximately 289.3 and 290.5 eV can be associated with semi-covalent C F and C F bonds[34]. The concentration of the new C F bonds increased with increasing…”

Water Vapor Adsorption Capacity of Thermally Fluorinated Carbon Molecular Sieves for CO2 Capture

“…This phenomenon is attributed to the effects of defluorination at high temperature. The loss of fluorine was initiated between 200 and 300 ∘ C, and defluorination was mostly completed by 400 ∘ C [32,33]. Based on these results, the fluorine contents of 200FC and 300FC gradually increased to 25.56% and 28.27%, respectively.…”

Pore size control and electrochemical capacitor behavior of chemically activated polyacrylonitrile – Carbon nanotube composite films

“…Porous carbon materials with pore size control at the nanometer scale and with high surface area are important for many applications [1][2][3][4][5][6][7][8]. For electrochemical capacitor electrodes, pores in the 2-50 nm size range are conventionally believed to impart maximum specific capacitance [2,[9][10][11][12][13].…”