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author:

Fu, Wenwu (Fu, Wenwu.) [1] | Zhang, Kai (Zhang, Kai.) [2] | Chen, Mao-sung (Chen, Mao-sung.) [3] | Zhang, Ming (Zhang, Ming.) [4] | Shen, Zhongrong (Shen, Zhongrong.) [5]

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EI

Abstract:

Nitrogen doped porous carbons are the most attractive electrode materials for supercapacitors due to their large surface area and surface pseudocapacitance. Herein, a nitrogen-doped porous carbon with an ultra-high specific surface area of 3709 m2 g−1 is synthesized by a simple one-pot polymerization and calcination process. The porous carbon exhibits both high specific capacitance and excellent rate capability in a wide pH range. High specific capacitances of 304.3, 348.0, 185.4 and 298.0 F g−1 are achieved for the nitrogen-doped porous carbon in 1 M H2SO4, 6 M KOH, 21 m LiTFSI and 1 M Li2SO4 at 2 mV s−1, respectively. The symmetrical supercapacitor with this porous carbon as the electrodes can deliver a high energy density of 25.9 Wh kg−1 at a power density of 339.6 W kg−1 with an operating cell voltage of 1.7 V in 1 M Li2SO4 electrolyte, and a good cycle stability with 84% of its initial specific capacitance remains after 23,000 cycles. The superior electrochemical properties can be attributed to the large specific surface area, well-defined hierarchical pores, and high level of disorder structure for the N-doped carbon material. © 2021 Elsevier B.V.

Keyword:

Capacitance Carbon Doping (additives) Electrodes Electrolytes Fluorine compounds Lithium compounds Nitrogen pH Porous materials Potassium hydroxide Specific surface area Sulfur compounds Sulfuric acid Supercapacitor

Community:

  • [ 1 ] [Fu, Wenwu]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 2 ] [Fu, Wenwu]The Laboratory of Rare-Earth Functional Materials and Green Energy, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
  • [ 3 ] [Fu, Wenwu]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 4 ] [Zhang, Kai]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 5 ] [Zhang, Kai]The Laboratory of Rare-Earth Functional Materials and Green Energy, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
  • [ 6 ] [Chen, Mao-sung]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 7 ] [Chen, Mao-sung]The Laboratory of Rare-Earth Functional Materials and Green Energy, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
  • [ 8 ] [Zhang, Ming]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 9 ] [Zhang, Ming]The Laboratory of Rare-Earth Functional Materials and Green Energy, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
  • [ 10 ] [Shen, Zhongrong]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 11 ] [Shen, Zhongrong]The Laboratory of Rare-Earth Functional Materials and Green Energy, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China

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Source :

Journal of Power Sources

ISSN: 0378-7753

Year: 2021

Volume: 491

9 . 7 9 4

JCR@2021

8 . 1 0 0

JCR@2023

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 35

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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