Biomass-Derived Porous Carbon Materials for Li-Ion Battery
Nazhipkyzy M. Maltay A.B. Askaruly K. Assylkhanova D.D. Seitkazinova A.R. Mansurov Z.A.
October 2022MDPI
Nanomaterials
2022#12Issue 20
Biomass-based carbon nanofibers (CNF) were synthesized using lignin extracted from sawdust and polyacrylonitrile (PAN) (30:70) with the help of the electrospinning method and subsequent stabilization at 220 °C and carbonization at 800, 900, and 1000 °C. The synthesized CNFs were studied by scanning electron microscopy, energy-dispersive X-ray analysis, Raman spectroscopy, and the Brunauer–Emmett–Teller method. The temperature effect shows that CNF carbonized at 800 °C has excellent stability at different current densities and high capacitance. CNF 800 in the first test cycle at a current density of 100 mA/g shows an initial capacity of 798 mAh/g and an initial coulomb efficiency of 69.5%. The CNF 900 and 1000 show an initial capacity of 668 mAh/g and 594 mAh/g, and an initial Coulomb efficiency of 52% and 51%. With a long cycle (for 500 cycles), all three samples at a current density of 500 mA/g show stable cycling in different capacities (CNF 800 in the region of 300–400 mAh/g, CNF 900 and 1000 in the region of 100–200 mAh/g).
anode , battery , electrospinning , fibers , sawdust
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Department of Chemical Physics and Material Science, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Institute of Combustion Problems, Almaty, 050012, Kazakhstan
Department of Materials Science, Nanotechnology and Engineering Physics, Satbayev University, Almaty, 050000, Kazakhstan
Department of Chemical Physics and Material Science
Institute of Combustion Problems
Department of Materials Science
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