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| Preparation and Electrochemical Performance of Fe-catalyzed Biomass-based Carbon Aerogels |
| Received:October 05, 2025 Revised:November 06, 2025 |
| DOI：10.11981/j.issn.1000-6842.2026.02.53 |
| Key Words:lignin;cellulose nanofibers;catalytic graphitization;Fe carbon aerogel;electrochemical performance |
| Fund Project:国家自然科学基金青年科学基金项目（32301681）；江苏省自然科学基金面上项目（BK20211025）；江苏省生物质能源与材料重点实验室自主科研项目（JSBEM-S-202317）。 |
| Author Name | Affiliation | Postcode | | LIN Yan* | Jiangsu Key Lab of Biomass Energy and Material， Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， Institute of Chemical Industry of Forestry Products， CAF，Nanjing， Jiangsu Province， 210042 | 210042 | | JIAO Jian | Jiangsu Key Lab of Biomass Energy and Material， Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， Institute of Chemical Industry of Forestry Products， CAF，Nanjing， Jiangsu Province， 210042 | 210042 | | DENG Yongjun | Jiangsu Key Lab of Biomass Energy and Material， Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， Institute of Chemical Industry of Forestry Products， CAF，Nanjing， Jiangsu Province， 210042 | 210042 | | FANG Guigan* | Jiangsu Key Lab of Biomass Energy and Material， Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， Institute of Chemical Industry of Forestry Products， CAF，Nanjing， Jiangsu Province， 210042 | 210042 |
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| Abstract: |
| Hierarchical porous Fe-catalyzed biomass-based carbon aerogels were fabricated by using lignin and cellulose nanofibers （CNF） as carbon sources with ferric nitrate as catalyst and template agent. Their electrochemical performances as supercapacitor electrodes were comparatively investigated. The results indicated that as the amount of ferric nitrate increased， the graphitization degree of the prepared Fe-catalyzed biomass-based carbon aerogel enhanced， while the specific surface area first decreased and then increased， and the total pore volume and average pore diameter both increased. The specific capacitance， reversible charge-discharge performance， and rate performance of the prepared electrodes all show an upward trend. When the mass ratio of ferric nitrate to lignin/CNF was 2∶1 and 3∶1， the specific surface area， total pore volume， and average pore diameter of the prepared LC@FeA-2 and LC@FeA-3 were 421.4， 467.3 m2/g，0.300， 0.373 cm3/g， and 2.849， 3.195 nm， respectively， and they exhibited optimal electrochemical performance， with specific capacitance of 219.0 and 221.8 F/g， respectively， and excellent capacitance rentention rate of 73.3% and 74.8%， respectively. After 4 000 cycles of charge-discharge tests， the specific capacitance retention rate of LC@FeA-2 was 72.0%， demonstrating a good cycle stability. |
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