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Abstract
This study explores the controlled, continuous production of thin carbon rods between graphite electrodes (continued electrode deposits) during an arc discharge of high voltage alternating current with a frequency of 50 Hz in liquid paraffin, along with in situ doping of the resulting material using a suspension of liquid paraffin and iron powder ( <10 μm). The surface morphology of the obtained carbon rod nanomaterials was characterized using scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDX), scanning transmission electron microscopy (STEM) with EDX chemical composition analysis, X-ray microtomography (micro-CT), and atomic force microscopy (AFM). The AFM technique in scanning thermal microscopy (SThM) and conductive probe (CP) modes was employed to determine the temperature and electrical conductivity of the obtained nanostructures. Qualitative analysis was conducted using Raman spectroscopy, X-ray powder diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). This simple system for producing thin, stable carbon wires (< 1.2 mm thick) enables efficient and low-cost production and doping of these materials. The high-voltage alternating current (HVAC) arc discharge method for growing controlled, metal-doped electrode deposits presents a new approach to producing inexpensive, porous carbon nanomaterials for various scientific and technological applications.
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Details
1 Jacob of Paradies University, Institute of Nanotechnology and Nanobiology, Gorzow Wielkopolski, Poland (GRID:grid.498902.e) (ISNI:0000 0004 5940 857X)
2 University of Illinois at Urbana, Department of Mechanical Science and Engineering, Champaign, Urbana, USA (GRID:grid.35403.31) (ISNI:0000 0004 1936 9991)
3 Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Lodz, Poland (GRID:grid.413454.3) (ISNI:0000 0001 1958 0162)
4 Poznan Universityof Technology, Faculty of Materials Engineering and Technical Physics, Poznan, Poland (GRID:grid.6963.a) (ISNI:0000 0001 0729 6922)
5 University of Illinois at Urbana, Department of Civil and Environmental Engineering, Champaign, Urbana, USA (GRID:grid.35403.31) (ISNI:0000 0004 1936 9991)