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| Synergistic Co-pyrolysis of Lignin and Cellulose for Fabricating Porous Carbon Applied in Supercapacitors |
| Received:October 21, 2025 Revised:November 28, 2025 |
| DOI：10.11981/j.issn.1000-6842.2026.01.57 |
| Key Words:lignin;cellulose;waste textile;porous carbon;supercapacitors |
| Fund Project:国家重点研发计划（2023YFB4203704）。 |
| Author Name | Affiliation | Postcode | | YANG Cheng* | College of Textile Science and Engineering， National Engineering Research Center of Fiber-based Composites， Jiangnan University， Wuxi， Jiangsu Province， 214024 | 214024 | | ZHAO Yifang | College of Textile Science and Engineering， National Engineering Research Center of Fiber-based Composites， Jiangnan University， Wuxi， Jiangsu Province， 214024 | 214024 | | LU Xuefeng | College of Textile Science and Engineering， National Engineering Research Center of Fiber-based Composites， Jiangnan University， Wuxi， Jiangsu Province， 214024 | 214024 | | LONG Zhu | College of Textile Science and Engineering， National Engineering Research Center of Fiber-based Composites， Jiangnan University， Wuxi， Jiangsu Province， 214024 | 214024 | | DAI Lei* | College of Textile Science and Engineering， National Engineering Research Center of Fiber-based Composites， Jiangnan University， Wuxi， Jiangsu Province， 214024 | 214024 |
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| Abstract: |
| The enzymatic lignin and cellulose-containing waste textiles were taken as co-precursor， of which the lignin and cellulose were taken as composite carbon sources， to prepare porous carbon （TLPC） applied in supercapacitors with high specific surface area via a one-step carbonization-activation. The microporous structure and electrochemical performances of TLPC samples were systematically investigated. The results showed that at a carbonization temperature of 800 ℃， the prepared TLPC-800 exhibited a high specific capacitance of 275 F/g at a current density of 0.5 A/g. When assembled into a symmetric coin-type supercapacitor， the device delivered an energy density of 13.54 Wh/kg at a power density of 325 W/kg. After 10 000 charge-discharge cycles， the capacitance retention rate reached nearly 99.6% with a coulombic efficiency of approximately 100%， indicating an excellent cycling stability. In addition， the assembled large-volume flexible solid-state supercapacitor also presented favorable electrochemical performance. |
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