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High-Performance Supercapacitor Electrode Materials Prepared from Various Pollens

Authors

  • Long Zhang,

    1. Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China
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  • Fan Zhang,

    1. Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China
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  • Xi Yang,

    1. Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China
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  • Kai Leng,

    1. Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China
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  • Yi Huang,

    1. Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China
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  • Yongsheng Chen

    Corresponding author
    1. Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China
    • Key Laboratory for Functional Polymer, Materials and Centre for Nanoscale, Science and Technology, Institute of Polymer Chemistry, College of Chemistry Nankai University, Tianjin, 300071, China.
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Abstract

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Supercapacitors based on activated carbon prepared from various pollens show good specific capacitance (207 F g−1) and large gravimetric and volumetric energy density (∼88 Wh kg−1 and ∼44 Wh L−1, respectively) in ionic liquid electrolytes, which are much better than those of RP20 (commercial activated carbon) or graphene-based supercapacitors.

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