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Preparation and Performance of Lignocellulose Based Carbon Material for Supercapacitor |
Received:May 19, 2021 |
DOI:10.11980/j.issn.0254-508X.2021.10.002 |
Key Words:lignocellulose activation carbon material supercapacitor electrochemical performance |
Fund Project:制浆造纸工程国家重点实验室开放基金项目(201823)。 |
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Abstract:In this study, potassium hydroxide (KOH) was used as activator to prepare lignocellulose-based carbon materials with different structures via two different processing methods. One was first pre-carbonization and then activation, and the other was first activation and then carbonization. The porous carbon material synthesized by the former method was rich in defects and the specific surface area reached 1737 m2/g. Due to its special structure-activity relationship, the obtained porous carbon material as a supercapacitor electrode exhibited excellent electrochemical performance with a specific capacity of 194 F/g at a current density of 0.5 A/g. |
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