杜仲作为药用植物,经过提取后产生大量废弃物。以杜仲残渣为原料,采用直接碳化法和化学活化法制备了杜仲皮残渣基生物质多孔碳材料,并将其与单质硫复合,用作锂硫电池正极材料,对其电化学性能进行系统研究。结果表明杜仲皮残渣基多孔碳/硫复合正极材料具有优异的电化学性能和较高的放电比容量,既为锂硫电池正极材料提供了新型生物质碳材料来源,又提高了杜仲残渣的利用附加值,丰富和完善了杜仲利用产业链。
Eucommia ulmoides as a medicinal plant a large amount of waste is produced after extraction.Using eucommia ulmoides residues as raw materials,the direct carbonization and chemical activation methods were used to prepare eucommia bark residue-based biomass porous carbon materials,which were combined with elemental sulfur to be used as cathode materials for lithium-sulfur batteries.Their electrochemical performance was systematically studied.The results shown that the eucommia bark residue-based C/S composite cathode had excellent electrochemical performance and higher discharge specific capacity,which not only provided new source of biomass carbon material for Li-S battery cathode materials,but also increased the utilization of eucommia residues.The industrial chain of eucommia utilization were enriched and perfected.
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基金资助
中国博士后基金资助项目(2019M653706);陕西省创新人才推进计划资助项目(2019TD-019);陕西省自然科学基础研究计划资助项目(2021GY-151);陕西省教育厅自然科学专项资助项目(21JK0798,20JK0804,19JK0572,18JK0579)
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