Efficient utilization of lignin residue for activated carbon in supercapacitor applications

Geon Hae Lim, Jae Won Lee, Jun Ho Choi, Yun Chan Kang, Kwang Chul Roh

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Lignin is an organic polymer that is a key structural material in most plant support tissues. However, only 2% of lignin produced worldwide is commercially utilized; while the remainder is burned as fuel. It has been proven that a high carbon content and extensively bridged polymer structure are useful in creating high-value products. Herein, larch and the lignin obtained using the Klason and organosolv methods were converted into activated carbon samples for use as supercapacitors. This lignin showed higher values in carbonization yield. All other activated samples exhibited similar physical and electrochemical properties, pore structures, and surface areas. Transmission electron microscopy revealed that all samples had partially graphitic structures, which provide electron pathways and energy storage capabilities. Lignin-derived activated carbon shows the highest gravimetric specific capacitance (131 F g−1, at 1 mA cm−2), specific capacitance retention ratios of cycling stability (99% at 10 mA cm−2 for 10,000 cycles), and rate capability (91% at 30 mA cm−2). These results suggest high yield, good cycling stability, high capacitance, and eco-friendly material for supercapacitor electrodes.

Original languageEnglish
Article number126073
JournalMaterials Chemistry and Physics
Publication statusPublished - 2022 May 15

Bibliographical note

Funding Information:
This work was supported by the Technology Innovation Program ( 20010829 , Development of a supercapacitor(16Dx25L) in 3.0V 85 °C for Smart Meter (AMI)) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) . This work was supported by the Industrial Strategic Technology Development Program ( 20012763 , development of petroleum residue based porous adsorbent for industrial wastewater treatment) funded by the Ministry of Trade, Industry and Energy (MOTIE, Korea) .

Publisher Copyright:
© 2022


  • Activated carbon
  • Biomass
  • Lignin
  • Lignocellulosic
  • Supercapacitors

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


Dive into the research topics of 'Efficient utilization of lignin residue for activated carbon in supercapacitor applications'. Together they form a unique fingerprint.

Cite this