期刊
CHINESE CHEMICAL LETTERS
卷 30, 期 1, 页码 197-202出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2018.10.007
关键词
Lignin; MoS2; Porous carbon nanosphere; Electrochemical performance; Excellent cycle stability
资金
- National Natural Science Foundation of China [51803062]
- National Natural Science Foundation of Guangdong Province [2018A030310379]
- National Postdoctoral Program for Innovation Talents [BX201700079]
- China Postdoctoral Science Foundation [2017M620371]
- Foundation for Distinguished Young Talents in Higher Education of Guangdong Province [2017KQNCX001]
- Natural Science Foundation of China [51673175]
- Natural Science Foundation of Zhejiang Province [LY16E030012, LY17E030006, LY18E030009]
Lignin is the most abundant and important macromolecule in organic matter and its yield is second only to cellulose. Lignin is abundant in source, low in price, and has a large number of active groups such as methoxy group and carboxyl group, so it has great utilization value. We used lignin as a carbon source to prepare porous carbon nanosphere (PCN) materials, and in-situ synthesized the MoS2 on its surface. The high specific surface area (similar to 462.8 m(2)/g), large pore volume and good electron conductivity of the porous carbon scaffold facilitated the reversible electro-chemical reaction of S towards metallic Li, and thus the nano-hybrid showed a high specific energy and excellent cycle stability which still remained 520 mAh/g after 50 cycles. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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