| Development of
supercapacitors based on
carbon nanotubes |
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| 作者姓名： | 马仁志 魏秉庆 徐才录 梁吉 吴德海 |
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| 作者单位： | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
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| 摘 要： | Block-type electrodes made of carbon nanotubes were fabricated by different processes. The volumetric specific capacitance based on such electrodes reached 107 F/cm3, which proves carbon nanotubes to be ideal candidate materials for supercapacitors. The composite electrodes consisting of carbon nanotubes and RuO2 ·xH2O were developed by the deposition of RuO2 on the surface of carbon nanotubes. Supercapacitors based on the composite electrodes show much higher specific capacitance than those based on pure carbon nanotube ones. A specific capacitance of 600 F/g can be achieved when the weight percent of RuO2· xH2O in the composite electrodes reaches 75% . In addition , supercapacitors based on the composite electrodes show both high energy density and high power density characteristics.
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| 收稿时间： | 7 June 2009 |
Development of supercapacitors based on carbon nanotubes |
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| MA Renzhi,WEI Bingqing,XU Cailu,LIANG Ji,WU Dehai.Development of
supercapacitors based on
carbon nanotubes[J].Science in China(Technological Sciences),2000,43(2):178-182. |
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| Authors: | MA Renzhi WEI Bingqing XU Cailu LIANG Ji WU Dehai |
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| Affiliation: | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Block-type electrodes made of carbon nanotubes were fabricated by different processes. The volumetric specific capacitance based on such electrodes reached 107 F/cm3, which proves carbon nanotubes to be ideal candidate materials for supercapacitors. The composite electrodes consisting of carbon nanotubes and RuO2.xH2O were developed by the deposition of RuO2 on the surface of carbon nanotubes. Supercapacitors based on the composite electrodes show much higher specific capacitance than those based on pure carbon nanotube ones. A specific capacitance of 600 F/g can be achieved when the weight percent of RuO2.xH2O in the composite electrodes reaches 75%. In addition, supercapacitors based on the composite electrodes show both high energy density and high power density characteristics. |
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| Keywords: | carbon nanotube RuO2 supercapacitor |
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