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Facile synthesis of interconnected layered porous carbon framework for high-performance supercapacitors

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2023, 33(3), pp.791-802
  • DOI : 10.1007/s42823-023-00460-z
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : October 17, 2022
  • Accepted : January 7, 2023
  • Published : May 1, 2023

Murugan Nagaraj 1 Thangarasu Sadhasivam 1 Seo Sol Bin 1 Choi Yu Rim 1 Magdum Sahil S. 2 Oh Tae Hwan 2 Yoong Ahm Kim 1

1Chonnam National University
2Yeungnam University

Accredited

ABSTRACT

Biomass-derived porous carbon is an excellent scientific and technologically interesting material for supercapacitor applications. In this study, we developed biomass-derived nitrogen-doped porous carbon nanosheets (BDPCNS) from cedar cone biomass using a simple KOH activation and pyrolysis method. The BDPCNS was effectively modified at different temperatures of 600 °C, 700 °C, and 800 ℃ under similar conditions. The as-prepared BDPCNS-700 electrode exhibited a high BET surface area of 2883 m2 g−1 and a total pore volume of 1.26 cm3 g−1. Additionally, BDPCNS-700 had the highest electrical conductivity (11.03 cm−1) and highest N-doped content among the different electrode materials. The BDPCNS-700 electrode attained a specific capacitance of 290 F g−1 at a current density of 1 A g−1 in a 3 M KOH electrolyte and an excellent long-term electrochemical cycling stability of 93.4% over 1000 cycles. Moreover, the BDPCNS-700 electrode had an excellent energy density (40.27 Wh kg−1) vs power density (208.19 W kg−1). These findings indicate that BDPCNS with large surface areas are promising electrode materials for supercapacitors and energy storage systems.

Citation status

Scopus Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2023-10-01)

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