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.

Details

Title
In situ Fe-doped thin carbon wires via AC high voltage arc discharge
Author
Jankowski, Krzysztof 1 ; Jasiuk, Iwona 2 ; Uznański, Paweł 3 ; Szybowicz, Mirosław 4 ; Ostafin, Agnes 1 ; Brzozowski, Romuald 3 ; Mahrous, Mahmoud 5 ; Bonney, Christian 2 ; Tomasik, Mikołaj 1 ; Całuch, Szymon 1 

 Jacob of Paradies University, Institute of Nanotechnology and Nanobiology, Gorzow Wielkopolski, Poland (GRID:grid.498902.e) (ISNI:0000 0004 5940 857X) 
 University of Illinois at Urbana, Department of Mechanical Science and Engineering, Champaign, Urbana, USA (GRID:grid.35403.31) (ISNI:0000 0004 1936 9991) 
 Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Lodz, Poland (GRID:grid.413454.3) (ISNI:0000 0001 1958 0162) 
 Poznan Universityof Technology, Faculty of Materials Engineering and Technical Physics, Poznan, Poland (GRID:grid.6963.a) (ISNI:0000 0001 0729 6922) 
 University of Illinois at Urbana, Department of Civil and Environmental Engineering, Champaign, Urbana, USA (GRID:grid.35403.31) (ISNI:0000 0004 1936 9991) 
Pages
29528
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3133634902
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.