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| 1 | Electrochemical reduction of graphene oxide films:Preparation,characterization and their electrochemical properties显示文摘Graphene oxide (GO) film was electrochemically reduced by a cyclic voltammetry technique in 6 mol L-1 KOH aqueous solution.Electrochemically reduced graphene oxide (ER-GO) film was characterized by X-ray diffraction,X-ray photoelectron spectroscopy,atomic force microscopy,and Raman spectroscopy.The oxygen content (with the O/C atomic ratio of 1.29%) was significantly decreased after electrochemical reduction.The ER-GO film exhibited a specific capacitance of 152 F g-1 at the current density of 5 A g-1 and a good rate capability.Furthermore,the ER-GO film showed an excellent cycling ability.The capacitance retention remained 99% after 3000 cycles at the current density of 10 A g-1. | ZHANG Xiong ZHANG DaCheng CHEN Yao SUN XianZhong MA YanWei | 2012 | Chinese Science Bulletin2012，57，23： | 6 |
| 2 | Effect of acid oxidization of carbon nanotube electrode on the capacitances of double layer capacitors显示文摘Polarizable electrode of electric double layer capacitor was made from carbon nanotubes. The effect of acid oxidation of electrode on the specific capacitance was studied. Oxidation removed the redundant carbon, expanded the pore size and introducedf some kinds of functional groups on the surface of CNTs. The specific capacitance of the electrodes winth organic electrolyte was increased from 21.4 to 49.6 F/g after being oxidized at a volume ratio H2SO4 to HNO3 of 3:1. | Li Chensha1,WANG Dazhi1,LIANG Tongxiang2,WANG Xiaofeng1 & LIANG Ji1 1. Department of Mechanical Engineering, Tsinghua University,Beijing 100084, China 2. Institute of Nuclear Energy Technology, Tsinghua University,Beijng 102201,China | 2004 | Science China(Technological Sciences)2004，47，3： | 1 |
| 3 | Oxidation behavior of CNTs and the electric double layer capacitor made of the CNT electrodes显示文摘The effect of CO2 oxidized carbon nanotubes (CNTs) on the performance of electric double layer capacitors (EDLCs) was studied. CO2 oxidation increased the specific area and improved the dispersity of CNTs. Specific capacitance of the polarizable electrodes in EDLCs based on the oxidized CNTs were obviously improved and the maximum specific capacitance of 47 F/g was obtained. CO2 oxidizing CNTs is hence an effective way to improve the performances of EDLCs based on the CNT electrodes. | 李辰砂 王大志 梁彤祥 李贵涛 王晓峰 曹茂盛 梁吉 | 2003 | Science China(Technological Sciences)2003，46，4： | 1 |
| 4 | Synthesis of novel ordered carbon nanorods and its application in electrochemical double layer capacitor显示文摘The ordered carbon nanorods (OCNR) was successfully synthesized using the mesoporous silica as hard template. XRD tests and TEM observations showed that OCNR was composed of arrayed carbon nanorods in the p6mm symmetry. N2 sorption analysis demonstrated that OCNR possessed the typically mesoporous structure and centralized mesopore distribution. Compared with Maxsorb, an active carbon with super high surface area, OCNR has superior capacitive behavior, power output and high fre- quency performance due to its ordered pore-structure, which favors the fast diffusion of hydrated ions. As evidenced by cyclic voltammetry measurements, OCNR shows superior capacitive behaviors (exhibiting a high capacitance of 166 F/g even at very high sweep rate of 50 mV/s, as compared to much reduced capacitance of 73 F/g for Maxsorb at the same sweep rate). OCNR can provide much higher power density while still maintaining good energy density, which offers a great potential in electrochemical double layer ca- pacitor (EDLC), particularly for applications where both high power output and energy density are required. | XING Wei LIU Xinmei BAI Peng YAN Zifeng LU Gaoqing | 2006 | Science China(Technological Sciences)2006，49，4： | 0 |
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