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Effect of metallic copper on the electrothermal properties of carbon nanofibers

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(4), pp.1259-1267
  • DOI : 10.1007/s42823-023-00640-x
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : July 18, 2023
  • Accepted : September 25, 2023
  • Published : June 14, 2024

Huang He-Dong 1 Pu Hao 1 Fan Jun-Wei 1 Su Bing 1 Liu Hong-Yang 1 Ha Xin-Yi 1 Ren Yong-Fei 2 Guo Ze-yu 1

1Inner Mongolia Agricultural University
2Inner Mongolia Yuan Long Yong Tai Energy Technology Co. Ltd

Accredited

ABSTRACT

Cu2+/polyacrylonitrile composite fibers were prepared by electrospinning, and then Cu/carbon nanofibers (denoted as Cu/CNF-X; X = Cu content, 0, 3, or 5 wt%) were formed by calcining them. The effects of Cu2+ content and carbonization temperature on the conductivity and electrothermal conversion of Cu/CNF-X were investigated. The results revealed that the conductivity and electrothermal properties of Cu/CNF-X improve with the increase in the Cu2+ content and carbonization temperature. When the carbonization temperature was 800, 900, or 1000 °C, the conductivity of Cu/CNF-5 (0.08, 0.68, or 2.48 S/cm, respectively) increased to 1.6, 1.5, or 1.6 times that of Cu/CNF-0, respectively. The highest instantaneous surface temperatures of Cu/CNF-5 calcined at 800, 900, and 1000 °C (36, 145, and 270.2 °C, respectively) increased by 4, 25.5, and 44.6 °C, respectively, compared with those of the corresponding Cu/CNF-0 samples (32, 120.3, and 225.6 °C, respectively). Thus, the addition of a small amount of Cu2+ effectively improved the conductivity and electrothermal conversion performance of Cu/CNF-X, which has potential application value in industrial products in the future.

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