Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (6): 1807.doi: 10.7503/cjcu20200904

• Physical Chemistry • Previous Articles     Next Articles

Preparation of Lignin Nanocarbon and Its Performance as a Negative Electrode for Lithium-ion Batteries

YI Conghua, SU Huajian, QIAN Yong, LI Qiong, YANG Dongjie()   

  1. School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China
  • Received:2020-12-29 Online:2021-06-10 Published:2021-06-08
  • Contact: YANG Dongjie E-mail:cedjyang@scut.edu.cn
  • Supported by:
    the National Key R&D Program of China(2018YFB1501503);the National Natural Science Foundation of China(21878114);the Fundamental Scientific Research Business Expenses of Central Universities, China(2019ZD18)

Abstract:

Enzymatically hydrolyzed lignin extracted from residues in the biorefinery industry was hydrothermally combined with zinc acetate under alkaline conditions to prepare a low molecular weight lignin/zinc oxide compound(LWL/ZnO), which was then carbonized and etched to obtain Lignin nano-carbon material(NLC). After characterizing its morphology and structure, it is found that NLC has a nano-particle structure with a particle size of less than 50 nm, with a specific surface area of 833.25 m2/g, and a mesoporosity as high as 58.07%. The mesopores with a pore diameter of 10 nm are the most abundant. The electrochemical performance test results show that NLC as a lithium-ion battery anode material has good cycle performance and rate performance, and its reversible specific capacity can maintain 705 mA·h/g after 200 cycles at a current density of 200 mA/g.

Key words: Lignin, Mesoporous nanocarbon, Lithium-ion battery

CLC Number: 

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