Chitosan-derived hybrid porous carbon with the novel tangerine pith-like surface as supercapacitor electrode

  • Mengying Yuan
  • Yunqiang ZhangEmail author
  • Ben Niu
  • Feng Jiang
  • Xuena Yang
  • Mei LiEmail author
Electronic materials


A novel hybrid porous carbon has been synthesized by a facile method blending chitosan with gelatin in acetic acid solution. Gelatin changes the morphology of the chitosan-derived carbon materials and produces abundant micro- and mesopores with the help of KHCO3. More importantly, gelatin brings heteroatoms and pseudo-capacitance into hybrids to improve the capacitive performance as the nitrogen source. A unique tangerine pith-like morphology comes into being on the chitosan-derived hybrid porous carbon, and there are lots of interconnected micropores forming with high specific surface area of 927.17 m2 g−1. This particular morphology, high nitrogen content and specific surface area ensure the as-obtained carbon electrode wonderful capacitive performance with specific capacitance of 331 F g−1 in 6 mol L−1 KOH electrolyte at 1 A g−1, high retention of 73% and excellent capacity stability of 90% after 10000 cycles at 10 A g−1. Additionally, the chitosan-derived hybrid porous carbon shows remarkable energy density of 34 W h kg−1 with the power density of 900 W kg−1, superior to majority of the commercial devices. The simple and efficient strategy and the excellent electrochemical performance are of great significance to the large-scale application of biomass-based supercapacitors.



This study was supported by the International Cooperation Foundation of Qilu University of Technology (QLUTGJHZ2018023) and International Intelligent Foundation of Qilu University of Technology (QLUTGJYZ2018024).

Supplementary material

10853_2019_3911_MOESM1_ESM.docx (974 kb)
Supplementary material 1 (DOCX 973 kb)


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Authors and Affiliations

  1. 1.School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences)JinanPeople’s Republic of China
  2. 2.Shandong Provincial Key Laboratory of Processing and Testing Technology of Glass and Functional CeramicsJinanPeople’s Republic of China
  3. 3.Key Laboratory of Amorphous and Polycrystalline MaterialsQilu University of Technology (Shandong Academy of Sciences)JinanPeople’s Republic of China

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