MoS2 decorated lignin-derived hierarchical mesoporous carbon hybrid nanospheres with exceptional Li-ion battery cycle stability |
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Authors: | Feng Chen Long Wu Zeping Zhou Jiajun Ju Zhengping Zhao Mingqiang Zhong Tairong Kuang |
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Institution: | a College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China;
b The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, China;
c Zhijiang College, Zhejiang University of Technology, Hangzhou 310014, China |
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Abstract: | 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 (462.8 m2/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. |
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Keywords: | Lignin Porous carbon nanosphere Electrochemical performance Excellent cycle stability |
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