@article{ART003273350},
author={Ha Seongmin and Choi Go Bong and Lim Chaehun and Myeong Seongjae and Cheon Seoyeong and Lee, Young-Seak},
title={N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={4},
pages={1649-1658},
doi={10.1007/s42823-025-00885-8}
TY - JOUR
AU - Ha Seongmin
AU - Choi Go Bong
AU - Lim Chaehun
AU - Myeong Seongjae
AU - Cheon Seoyeong
AU - Lee, Young-Seak
TI - N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries
JO - Carbon Letters
PY - 2025
VL - 35
IS - 4
PB - Korean Carbon Society
SP - 1649
EP - 1658
SN - 1976-4251
AB - In this study, nitrogen and fluorine co-doped carbon nanocages (NF-CNCs) were synthesized as anode materials for potassium-ion batteries (KIBs), and their structural evolution with heat treatment and electrochemical behavior with different functional groups was investigated. NF-CNCs were prepared by physically mixing coal tar pitch (CTP) with a SiO2 template, followed by heat treatment and subsequent fluorination with NF3 gas. A systematic investigation of the structural properties revealed that graphitization increased with increasing heat treatment temperature as the carbon structure transitioned from amorphous at 500 and 1000 °C to graphite-like at 1500 °C. Furthermore, nitrogen and fluorine functional group analysis revealed significant changes, particularly in terms of covalent and semi-ionic C‒F bonds. Among the samples, NF-CNC 1000 displayed excellent electrochemical performance, with a specific capacity of 395.1 mAh g−1 and a capacity retention rate of 94% during 1000 cycles at 50 mA g−1. The exceptional performance of NF-CNC 1000 is attributed to its high porosity, amorphous carbon structure, and semi-ionic C‒F bonds, which facilitate the efficient adsorption and intercalation of potassium ions. These findings provide valuable insights into the design of advanced anode materials for next-generation KIBs.
KW - NF3 fluorination;Carbon nanocage (CNC);Potassium-ion batteries (KIBs);Carbon-based anode
DO - 10.1007/s42823-025-00885-8
ER -
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong and Lee, Young-Seak. (2025). N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries. Carbon Letters, 35(4), 1649-1658.
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong and Lee, Young-Seak. 2025, "N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries", Carbon Letters, vol.35, no.4 pp.1649-1658. Available from: doi:10.1007/s42823-025-00885-8
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong, Lee, Young-Seak "N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries" Carbon Letters 35.4 pp.1649-1658 (2025) : 1649.
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong, Lee, Young-Seak. N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries. 2025; 35(4), 1649-1658. Available from: doi:10.1007/s42823-025-00885-8
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong and Lee, Young-Seak. "N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries" Carbon Letters 35, no.4 (2025) : 1649-1658.doi: 10.1007/s42823-025-00885-8
Ha Seongmin; Choi Go Bong; Lim Chaehun; Myeong Seongjae; Cheon Seoyeong; Lee, Young-Seak. N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries. Carbon Letters, 35(4), 1649-1658. doi: 10.1007/s42823-025-00885-8
Ha Seongmin; Choi Go Bong; Lim Chaehun; Myeong Seongjae; Cheon Seoyeong; Lee, Young-Seak. N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries. Carbon Letters. 2025; 35(4) 1649-1658. doi: 10.1007/s42823-025-00885-8
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong, Lee, Young-Seak. N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries. 2025; 35(4), 1649-1658. Available from: doi:10.1007/s42823-025-00885-8
Ha Seongmin, Choi Go Bong, Lim Chaehun, Myeong Seongjae, Cheon Seoyeong and Lee, Young-Seak. "N/F co-doped carbon nanocages engineered with NF3 fluorination for use in highly stable potassium-ion batteries" Carbon Letters 35, no.4 (2025) : 1649-1658.doi: 10.1007/s42823-025-00885-8
