Release Time:2024-11-17  Hits:

Date of Publication: 2022-10-06

Journal: 新型炭材料

Volume: 24

Issue: 2

Page Number: 109-113

ISSN: 1007-8827

Abstract: Bamboo-like carbon nanotube (BCNTs) with open ends, and carbon nanofibers (CNFs) were prepared from a coal-based carbon rod by a DC arc discharge. The coal-based carbon rod was made by carbonizing Chinese Bai-Yang-Shu anthracite with coal tar and pitch as binder. The BCNTs and CNFs were characterized by scanning and transmission electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. It is found that BCNTs and CNFs grow as a deposit on the anode at a low helium pressure of 0.020 MPa with the coal-based carbon rod as anode. Most of the BCNTs have an open end and a diameter of 50 nm. CNFs with a diameter of 30-50 nm form fluffy balls on the surface of the remaining anode.

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