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吉林化工学院学报, 2018, 35(7): 95-99     https://doi.org/10.16039/j.cnki.cn22-1249.2018.07.022
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多孔生物质碳/NiCo2S4复合材料的制备及电化学性能研究
许星星,于迪,王浩,韩明轩,江丽丽
吉林化工学院 材料科学与工程学院
Synthesis of Porous biomass carbon/NiCo2S4 Composite for High Performance Supercapacitors
XU Xing-xing,YU Di,WANG Hao,HAN Ming-xuan,JIANG Li-li
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摘要 以萝藦(Metaplexis japonica,一种草本缠绕植物)种子顶端的白色长绢毛为生物质碳的前驱体,氢氧化钾为活化剂,制备了管状的多孔生物质碳材料(AMJ)。再通过水热法和硫化过程在多孔生物质碳材料上原位生长NiCo2S4纳米颗粒。通过X射线衍射(XRD)、扫描电子显微镜(SEM)和N2吸附-脱附分析表征了其微观形貌和结构。呈管状结构的多孔生物质碳材料的比表面积为2831 m2/g,这有利于电解液/电极界面电荷的积累,同时促进电解液离子的扩散和传输。将AMJ/NiCo2S4复合材料用作超级电容器电极材料,在三电极体系中进行电化学性能测试。在扫描速度为5 mV/s时,AMJ/NiCo2S4电极材料的最高比电容可达1041.6 F/g。同时,与纯NiCo2S4电极材料相比具有良好的倍率性能和循环稳定性。
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许星星
于迪
王浩
韩明轩
江丽丽
关键词:  生物质衍生碳  萝藦  NiCo2S4  复合电极材料  超级电容器    
Abstract: In this work, Metaplexis japonica was used as raw material to prepare porous biomass carbon (AMJ) using KOH as activator. A facile two-step method is developed for growth of NiCo2S4 nanoparticles on AMJ, involving the growth of Ni-Co precursor by hydrothermal approach and subsequent conversion into NiCo2S4 nanoparticles through sulfidation process. The microstructure and morphologies of the resulting materials were characterized by XRD, SEM and N2 adsorption desorption analysis. The specific surface area of porous biomass carbon materials with tubular structure was 2831 m2/g, which was beneficial to charge accumulation between the electrolyte/electrode interfaces, and promote the diffusion and transport of electrolyte ions. Compared with pure NiCo2S4, the AMJ/NiCo2S4 electrode exhibited high specific capacitance of 1041.6 F/g at 5 mV/s, excellent rate capability and outstanding cycling stability.
Key words:  Biomass-derived carbon    Metaplexis japonica    NiCo2S4    Composite electrode materials    Supercapacitors
               出版日期:  2018-07-25      发布日期:  2018-07-25      整期出版日期:  2018-07-25
ZTFLH:  O613  
引用本文:    
许星星, 于迪, 王浩, 韩明轩, 江丽丽. 多孔生物质碳/NiCo2S4复合材料的制备及电化学性能研究[J]. 吉林化工学院学报, 2018, 35(7): 95-99.
XU Xing-xing, YU Di, WANG Hao, HAN Ming-xuan, JIANG Li-li. Synthesis of Porous biomass carbon/NiCo2S4 Composite for High Performance Supercapacitors. Journal of Jilin Institute of Chemical Technology, 2018, 35(7): 95-99.
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http://jlictxuebao.cn/CN/10.16039/j.cnki.cn22-1249.2018.07.022  或          http://jlictxuebao.cn/CN/Y2018/V35/I7/95
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