@article{ART003387229},
author={Du Yuebo and Zhang Na and Kong Lirong R. and Yin Shihui and Zhu GuoXing and Shen Xiaoping P.},
title={N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors},
journal={Carbon Letters},
issn={1976-4251},
year={2026},
volume={36},
number={3},
pages={1209-1221},
doi={10.1007/s42823-026-01055-0}
TY - JOUR
AU - Du Yuebo
AU - Zhang Na
AU - Kong Lirong R.
AU - Yin Shihui
AU - Zhu GuoXing
AU - Shen Xiaoping P.
TI - N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors
JO - Carbon Letters
PY - 2026
VL - 36
IS - 3
PB - Korean Carbon Society
SP - 1209
EP - 1221
SN - 1976-4251
AB - To construct high-performance CoNi2S4/nitrogen-doped carbon (NC) electrode material with well-retained porous structure, a NC-assisted low-temperature synthetic strategy was proposed here by using inorganic sodium sulfide as the sulfuric agent. The composed NC could not only promote the sulfidation of nickel-cobalt precursor by inhibiting the formation of byproducts under low temperature, but also elevate the overall conductivity of the final composite. Owing to its high sulfidation degree and well-preserved porous structure, the as-prepared CoNi2S4/NC could deliver high specific capacitances of 1580 F g− 1 at 1 A g− 1 and 1268 F g− 1 at 20 A g− 1, as well as remarkable cycling stability of 90.63% capacitance retention after 10,000 cycles. The asymmetric supercapacitor assembled from CoNi2S4/NC positive electrode and g-CN negative electrode could achieve high energy density of 59.68 Wh kg− 1 at 788.43 W kg− 1, and a high capacitance retention of 92.85% after 10,000 cycles. This work proposes an effective low-temperature hydrothermal strategy to synthesize CoNi2S4/NC composites electrode with well-maintained porous structure, high conductivity and remarkable redox activity, which enable its superior capacitive performance in supercapacitors.
KW - Low-temperature Nickel cobalt sulfide Nitrogen-doped carbon Porous Asymmetric supercapacitor
DO - 10.1007/s42823-026-01055-0
ER -
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing and Shen Xiaoping P.. (2026). N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors. Carbon Letters, 36(3), 1209-1221.
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing and Shen Xiaoping P.. 2026, "N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors", Carbon Letters, vol.36, no.3 pp.1209-1221. Available from: doi:10.1007/s42823-026-01055-0
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing, Shen Xiaoping P. "N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors" Carbon Letters 36.3 pp.1209-1221 (2026) : 1209.
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing, Shen Xiaoping P.. N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors. 2026; 36(3), 1209-1221. Available from: doi:10.1007/s42823-026-01055-0
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing and Shen Xiaoping P.. "N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors" Carbon Letters 36, no.3 (2026) : 1209-1221.doi: 10.1007/s42823-026-01055-0
Du Yuebo; Zhang Na; Kong Lirong R.; Yin Shihui; Zhu GuoXing; Shen Xiaoping P.. N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors. Carbon Letters, 36(3), 1209-1221. doi: 10.1007/s42823-026-01055-0
Du Yuebo; Zhang Na; Kong Lirong R.; Yin Shihui; Zhu GuoXing; Shen Xiaoping P.. N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors. Carbon Letters. 2026; 36(3) 1209-1221. doi: 10.1007/s42823-026-01055-0
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing, Shen Xiaoping P.. N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors. 2026; 36(3), 1209-1221. Available from: doi:10.1007/s42823-026-01055-0
Du Yuebo, Zhang Na, Kong Lirong R., Yin Shihui, Zhu GuoXing and Shen Xiaoping P.. "N-doped carbon-assisted low-temperature sulfidation: a green strategy for constructing high-performance CoNi2S4/N-doped carbon electrode for supercapacitors" Carbon Letters 36, no.3 (2026) : 1209-1221.doi: 10.1007/s42823-026-01055-0
