@article{ART003241524},
author={Moon Ho Jun and Kim Sumin and HAN Myeong Wan and Kim Yoong Ahm and Lee, MooSung and Han Jong Hun},
title={Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={3},
pages={1271-1283},
doi={10.1007/s42823-025-00859-w}
TY - JOUR
AU - Moon Ho Jun
AU - Kim Sumin
AU - HAN Myeong Wan
AU - Kim Yoong Ahm
AU - Lee, MooSung
AU - Han Jong Hun
TI - Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers
JO - Carbon Letters
PY - 2025
VL - 35
IS - 3
PB - Korean Carbon Society
SP - 1271
EP - 1283
SN - 1976-4251
AB - Carbon nanotube (CNT) fibers were synthesized in this study under a hydrogen atmosphere using the floating-catalyst chemical vapor deposition (CVD) technique. Acetone, ferrocene, and thiophene served as the sources of carbon, catalyst, and promoter, respectively. By adjusting the amount of thiophene, the sulfur molar ratio in the CVD reactor was varied to study its impact on the morphology and composition of the CNT fibers. Raman and TEM analyses showed that the structural properties of the CNTs, especially the production of single-walled CNTs (SWCNTs) with a high Raman IG/ID ratio of approximately 23.8, can be finely tuned by altering the sulfur content, which also affects the accumulation of spherical carbonaceous particles. Moreover, it was established that the electrical conductivity of the CNT fibers is significantly influenced by their specific components—SWCNTs, multi-walled CNTs (MWCNTs), and spherical carbonaceous particles. The ratios of these components can be adjusted by modifying the molar ratios of catalyst and promoter in the precursor mixture. Remarkably, SWCNTs with enhanced crystallinity were found to substantially improve the electrical conductivity of the CNT fibers, despite the presence of numerous spherical carbon impurities.
KW - Carbon nanotube fiber;Catalytic chemical vapor deposition;Sulfur promoter;Electrical conductivity
DO - 10.1007/s42823-025-00859-w
ER -
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung and Han Jong Hun. (2025). Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers. Carbon Letters, 35(3), 1271-1283.
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung and Han Jong Hun. 2025, "Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers", Carbon Letters, vol.35, no.3 pp.1271-1283. Available from: doi:10.1007/s42823-025-00859-w
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung, Han Jong Hun "Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers" Carbon Letters 35.3 pp.1271-1283 (2025) : 1271.
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung, Han Jong Hun. Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers. 2025; 35(3), 1271-1283. Available from: doi:10.1007/s42823-025-00859-w
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung and Han Jong Hun. "Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers" Carbon Letters 35, no.3 (2025) : 1271-1283.doi: 10.1007/s42823-025-00859-w
Moon Ho Jun; Kim Sumin; HAN Myeong Wan; Kim Yoong Ahm; Lee, MooSung; Han Jong Hun. Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers. Carbon Letters, 35(3), 1271-1283. doi: 10.1007/s42823-025-00859-w
Moon Ho Jun; Kim Sumin; HAN Myeong Wan; Kim Yoong Ahm; Lee, MooSung; Han Jong Hun. Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers. Carbon Letters. 2025; 35(3) 1271-1283. doi: 10.1007/s42823-025-00859-w
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung, Han Jong Hun. Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers. 2025; 35(3), 1271-1283. Available from: doi:10.1007/s42823-025-00859-w
Moon Ho Jun, Kim Sumin, HAN Myeong Wan, Kim Yoong Ahm, Lee, MooSung and Han Jong Hun. "Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers" Carbon Letters 35, no.3 (2025) : 1271-1283.doi: 10.1007/s42823-025-00859-w
