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    Template-free synthesis of lignin-derived 3D hierarchical porous carbon for supercapacitors

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    Template-free synthesis of lignin-derived 3D hierarchical porous carbon for supercapacitors.pdf
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    Type
    Article
    Authors
    Liu, Dechen
    Zhang, Wenli
    Liu, DeBo
    Yang, Jin
    Yin, Jian cc
    Lin, Haibo
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2021-02-18
    Online Publication Date
    2021-02-18
    Print Publication Date
    2021-03
    Embargo End Date
    2022-02-18
    Submitted Date
    2020-08-28
    Permanent link to this record
    http://hdl.handle.net/10754/667682
    
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    Abstract
    A facile synthesis strategy for lignin-derived three-dimensional hierarchical porous carbon (LHPC) was developed in this work. The LHPC was synthesized by a one-step carbonization-activation process using lignin as a carbon precursor and wet KOH as an in situ chemical activation agent. Compared with dry KOH activation agent, the wet KOH shows exfoliation effect on assisting the formation of hierarchical porous structure of LHPC. The H2O plays a key role of an exfoliation agent in forming the hierarchical porous structure of LHPC. The as-prepared LHPC shows a high specific surface area of 2109 m2 g−1 and hierarchical pores. When used as an electrode material for supercapacitor, the LHPC exhibits excellent electrochemical performances, including a high capacitance of 254 F g−1 at 0.5 A g−1 and excellent rate capability with 59% capacitance retention at 20 A g−1. This study offers a convenient and practical approach to produce a high-rate hierarchical porous carbon material for supercapacitors.
    Citation
    Liu, D., Zhang, W., Liu, D., Yang, J., Yin, J., & Lin, H. (2021). Template-free synthesis of lignin-derived 3D hierarchical porous carbon for supercapacitors. Journal of Materials Science: Materials in Electronics. doi:10.1007/s10854-021-05410-x
    Sponsors
    The financial support was received from the Thirteen Fifth Science and Technology Project of the Ministry of Education of Jilin Province (No. JJKH20181293KJ) and the Natural Science Foundation of China (No. 21975101) is gratefully acknowledged. Wenli Zhang acknowledges the start-up funding of Guangdong University of Technology (GDUT) and financial support from the Research and Development Program in Key Fields of Guangdong Province (2020B1111380002).
    Publisher
    Springer Nature
    Journal
    Journal of Materials Science: Materials in Electronics
    DOI
    10.1007/s10854-021-05410-x
    Additional Links
    http://link.springer.com/10.1007/s10854-021-05410-x
    ae974a485f413a2113503eed53cd6c53
    10.1007/s10854-021-05410-x
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

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