| 刘军,李杨,谭明慧,梁吉雷,吴明铂.化学通报,2014,77(10):961-967. |
| (英)多孔SnO2/炭微球的制备及其电化学性能研究 |
| Facile synthesis of porous SnO2/C microspheres for supercapacitors with improved electrochemical performances |
| 投稿时间：2014-01-14 修订日期：2014-03-04 |
| DOI： |
| 中文关键词: 多孔SnO2/炭微球 水热合成 活化 超级电容器 |
| 英文关键词:Porous SnO2/C microsphere, Hydrothermal synthesis, Activation, Supercapacitor |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目），中央高校基本科研业务费专项资金 |
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| 中文摘要: |
| 以SnCl4.5H2O 和可溶性淀粉为原料,采用简便的水热法制备了SnO2/炭微球。通过随后的ZnCl2活化获得了多孔SnO2/炭微球。SnO2/炭微球和多孔SnO2/炭微球均保持良好的球形,粒径集中在1-5 μm。SnO2 纳米颗粒均匀的分布在炭基体中。与采用同样方法制备的多孔炭微球相比,多孔SnO2/炭微球作为超级电容器的电极材料表现出更高的比电容、更低的等效串联电阻以及更好的倍率性能,表明多孔SnO2/炭微球在超级电容器领域具有良好的应用前景。 |
| 英文摘要: |
| SnO2/C microspheres were prepared by a facile hydrothermal method with SnCl4.5H2O and soluble starch as the precursors of SnO2 and carbon material. Porous SnO2/C microspheres were then obtained by subsequent ZnCl2 activation. Both SnO2/C microspheres and porous SnO2/C microspheres were mainly in spherical shape with particle size of 1-5 μm and SnO2 nanoparticles were homogeneously distributed in carbon microspheres. The electrode based on porous SnO2/C microspheres showed higher specific capacitance, lower equivalent series resistance and better rate capability than the electrode based on porous carbon microspheres prepared via the same method, indicating a promising application prospect of porous SnO2/C microspheres in supercapacitors in the future. |
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