TY - JOUR
T1 - Green and highly-efficient microwave synthesis route for sulfur/carbon composite for li-s battery
AU - Hsu, Chun Han
AU - Chung, Cheng Han
AU - Hsieh, Tzu Hsien
AU - Lin, Hong Ping
N1 - Funding Information:
The authors would like to thank the Ministry of Science and Technology, Taiwan, for their generous financial support of this research (MOST 108-2622-E-006-017-CC1 & MOST 108-2113-M-006-011). The authors gratefully acknowledge the use of JEOL JEM-2100F Cs STEM equipment be-longing to the Core Facility Center of National Cheng Kung University.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - Multiporous carbons (MPCs) are prepared using ZnO as a hard template and biomass pyrolysis oil as the carbon source. It is shown that the surface area, pore volume, and mesopore/mi-cropore ratio of the as-prepared MPCs can be easily controlled by adjusting the ZnO/oil ratio. Sul-fur/MPC (S/MPC) composite is prepared by blending sulfur powder with the as-prepared MPCs followed by microwave heating at three different powers (100 W/200 W/300 W) for 60 s. The unique micro/mesostructure characteristics of the resulting porous carbons not only endow the S/MPC composite with sufficient available space for sulfur storage, but also provide favorable and efficient channels for Li-ions/electrons transportation. When applied as the electrode material in a lithium-ion battery (LIB), the S/MPC composite shows a reversible capacity (about 500 mAhg−1) and a high columbic efficiency (>95%) after 70 cycles. Overall, the method proposed in this study provides a simple and green approach for the rapid production of MPCs and S/MPC composite for high-per-formance LIBs.
AB - Multiporous carbons (MPCs) are prepared using ZnO as a hard template and biomass pyrolysis oil as the carbon source. It is shown that the surface area, pore volume, and mesopore/mi-cropore ratio of the as-prepared MPCs can be easily controlled by adjusting the ZnO/oil ratio. Sul-fur/MPC (S/MPC) composite is prepared by blending sulfur powder with the as-prepared MPCs followed by microwave heating at three different powers (100 W/200 W/300 W) for 60 s. The unique micro/mesostructure characteristics of the resulting porous carbons not only endow the S/MPC composite with sufficient available space for sulfur storage, but also provide favorable and efficient channels for Li-ions/electrons transportation. When applied as the electrode material in a lithium-ion battery (LIB), the S/MPC composite shows a reversible capacity (about 500 mAhg−1) and a high columbic efficiency (>95%) after 70 cycles. Overall, the method proposed in this study provides a simple and green approach for the rapid production of MPCs and S/MPC composite for high-per-formance LIBs.
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U2 - 10.3390/ijms23010039
DO - 10.3390/ijms23010039
M3 - Article
C2 - 35008462
AN - SCOPUS:85121397258
SN - 1661-6596
VL - 23
JO - International journal of molecular sciences
JF - International journal of molecular sciences
IS - 1
M1 - 39
ER -