| 纳米纤维素/Fe3O4纳米球的原位合成及其电化学性能 |
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| 引用本文： | 张阳阳,李亚兰,许民,岳金权.纳米纤维素/Fe3O4纳米球的原位合成及其电化学性能[J].功能材料,2019,50(8):8217-8220. |
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| 作者姓名： | 张阳阳 李亚兰 许民 岳金权 |
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| 作者单位： | 东北林业大学 材料科学与工程学院,哈尔滨,150040;东北林业大学 材料科学与工程学院,哈尔滨,150040;东北林业大学 材料科学与工程学院,哈尔滨,150040;东北林业大学 材料科学与工程学院,哈尔滨,150040 |
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| 摘 要： | 利用实验室自制茶梗纳米纤维素原位合成纳米纤维素(CNC)/四氧化三铁(Fe3O4)纳米球,并对其粒径大小、结晶性质、磁性性能和电化学性能进行分析表征。结果表明,通过原位合成法所制得CNC/Fe3O4纳米球,粒子间分散性良好,直径约为10~30 nm;CNC/Fe3O4纳米球具有磁化强度34.9 A·m2/kg的磁特性;CNC/Fe3O4纳米球表现出良好的电化学性能,CNC/Fe3O4电极的比电容主要是Fe3O4产生的赝电容,在电流密度0.03 A/g时,比容量可达30.14 F/g,在0.04 A/g电流密度下,经过500次充放电后容量保持率为78.76%。CNC/Fe3O4电极中离子的扩散为Warburg机理。
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| 关 键 词： | 纳米纤维素 原位合成 四氧化铁 电化学性能 |
In-situ synthesis and electrochemical properties of CNC/Fe3O4 nanospheres |
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| ZHANG Yangyang,LI Yalan,XU Min,YUE Jinquan.In-situ synthesis and electrochemical properties of CNC/Fe3O4 nanospheres[J].Journal of Functional Materials,2019,50(8):8217-8220. |
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| Authors: | ZHANG Yangyang LI Yalan XU Min YUE Jinquan |
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| Affiliation: | (Collage of Material Science and Engineering, Northeast Forestry University,Harbin,150040,China) |
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| Abstract: | Cellulose nanocrystalline/Fe3O4 nanospheres were in-situ synthesized with cellulose nanocrystalline(CNC). The particle size, crystallization, magnetic properties and electrochemical properties of CNC/Fe3O4 nanospheres were analyzed. The results show that CNC/Fe3O4 nanospheres were uniform in size with a diameter of 10-30 nm. The magnetization of CNC/Fe3O4 nanospheres was 34.9 emu/g. The specific capacitance of the CNC/Fe3O4 was mainly the tantalum capacitor generated by Fe3O4. The CNC/Fe3O4 nanospheres showed a specific capacitance of 30.14 F/g at 0.03 A/g in 1 mol/L Na2SO3 aqueous solution. The specific capacitance retention was about 78.76% at 0.04 A/g after 500 cycles. The diffusion of ions in the CNC/Fe3O4 was the Warburg mechanism. |
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| Keywords: | nanocellulose in-situ synthesized Fe3O4 electrochemical properties |
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