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

서지정보

ㆍ발행기관 : 한국탄소학회 ㆍ수록지정보 : Carbon letters / 33권 / 3호
ㆍ저자명 : Nagaraj Murugan, Sadhasivam Thangarasu, Sol Bin Seo, Yu Rim Choi, Sahil S. Magdum, Tae Hwan Oh, Yoong Ahm Kim

목차

Facile synthesis of interconnected layered porous carbon framework for high-performance supercapacitors
Abstract
1 Introduction
2 Experimental section
2.1 Materials
2.2 BDPCNS synthesis from biomass
2.3 Electrode preparation
2.4 Characterization
2.5 Electrochemical characterization
3 Results and discussion
4 Conclusion
Acknowledgements
References

영어 초록

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 longterm 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.

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