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| Electrochemical Properties of Black Liquor Al-precipitated Lignin@PAN-based Carbon Fiber Electrode Materials and Its Application in Supercapacitor |
| Received:March 08, 2022 |
| DOI：10.11980/j.issn.0254-508X.2022.10.001 |
| Key Words:bamboo pulp black liquor high molecular weight lignin co-precipitated silicon removal carbon fiber supercapacitor |
| Fund Project:国家自然科学基金项目（21978161）；陕西科技大学学术带头人团队项目（2013XSD25）。 |
| Author Name | Affiliation | Postcode | | CHEN Shenglin* | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Xi’an, Shaanxi Province, 710021 | 710021 | | XU Yongjian | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Xi’an, Shaanxi Province, 710021 | 710021 | | GUO Kangkang | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Xi’an, Shaanxi Province, 710021 | 710021 | | LIU Yan | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper, Xi’an, Shaanxi Province, 710021 | 710021 |
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| Abstract:In this study， high molecular weight lignin in the bamboo pulp black liquor was separated via colloidal precipitation by aluminum sulfate to obtain the Al-precipitated lignin （AlpL）， and then AlpL@PAN-based carbon fibers with good electrochemical properties were prepared by electrospinning， pre-oxidation and carbonization route with AlpL and polyacrylonitrile （PAN） as raw materials. When the AlpL proportion was up to 60%， AlpL@PAN-based carbon fibers showed the best capacitance performance and better cycle stability， of which the internal resistance value was 1.138 Ω with 94.50% of the capacitance retained after 1000 cycles. |
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