The effect of annealing temperature , concentration , doped cobalt and the content of catalyzer on the capacities properties of pseudo - capacitor is studied . the results show that the specific capacitance enhances by supercritical drying and it is about 262f / g in 1mol / l aqueous koh 结果发现：超临界干燥将有效提高电极比电容量；以1mol / l的koh溶液为电解液所得电容比容量可达262f / g 。
1 . polybenzidine ( pbz ) was polymerized by using chemical method in organic system and with ( nh4 ) _ 2s _ 2o _ 8 as oxidant , hclo4 as dopant . the electrochemical behaviors of pbz electrode were studied by cyclic voltammetry , charge - discharge test and electrochemical impedance techniques 1 .用化学直接氧化法在乙腈溶液中,以高氯酸为掺杂剂制备了聚联苯胺,用循环伏安,交流阻抗,直流充放电对其电容行为进行了研究,聚联苯胺电极比电容为150f / g 。
The morphology of anthracite - based hsaac was observed by scanning electron microscope ; the structure of graphite microcrystalline in anthracite - based hsaac was analyzed by x - ray diffraction analyzer ; the specific surface area ( bet ) and pore structure of anthracite - based hsaac were determined by adsorption method of low temperature nitrogen . the relations between specific capacitance of anthracite - based hsaac and its specific surface area ( bet ) and pore structure were discussed 在利用扫描电镜观察无烟煤基hsaac的表面形貌，利用x射线衍射分析无烟煤基hsaac中石墨微晶的晶体结构，并通过bet低温氮气吸附法测定无烟煤基hsaac比表面积和孔结构的基础上，探讨了hsaac的比电容与其比表面积和孔结构之间的关系。
From the measurements of cyclic voltammetry and galvanostatic charge / discharge , the composite electrode had higher specific capacitance ( 0 . 84f / cm2 ) than pure mwnt array electrode ( 0 . 38f / cm2 ) in the same experimental conditions . a kind of linear elementary carbon with the similar structure to carbyne was prepared by a new method . the sample appeared to be winding lines with the diameter of around 0 . 2 run in the magnified image of the high resolution transmission electron microscope ( hrtem ) 扫描电子显微镜表征结果显示，聚吡咯比较均匀地附于碳纳米管的表面；通过比较复合电极和纯mwnts阵列电极在相同条件下的循环伏安和恒电流充放电实验结果得知，前者的比电容( 0 . 84f / cm ~ 2 )明显高于后者( 0 . 38f / em ~ 2 ) 。
In recent years , supercapacitors as the electrical energy storage systems have attracted growing attention due to the higher specific power than batteries and higher specific energy than conventional capacitors . considerable efforts have been devoted to developing and improving the performance of new available electrode materials 超级电容器是近年来发展起来的一种新型储能器件,其比电容为常规静电电容器的100倍以上,能量密度可以达到化学电源的十分之一左右,却有着比电池高10倍以上功率密度。
The comparison of carbon nanotube and active carbon and graphite nanofibers used as electrode material is also presented . a composite electrode material comprising carbon nanotubes and ruthenium oxide is obtained and the capacitance of supercapacitor reaches 270f / g . the carbon nanotube and the natural manganese oxide compounded for the first time and the initial results were achieved 本文采用纳米碳管作为超级电容器电极材料，得到比电容量为110f g的超级电容器结构单元，讨论了粘结剂、电解液等多种影响因素，并与乙炔黑电极和鱼骨状碳纤维电极进行了对比；制备了纳米碳管与氧化钌复合材料，得到比电容量为270f g的超级电容器结构单元；本文还首次将纳米碳管与大洋锰矿复合用作超级电容器电极材料，取得了初步成果，为天然矿物的开发利用开辟了一个新的发展方向。
The morphology examination by sem and tem showed that the carbon nanotubes were arranged in the array uniformly and paralleled , with smooth walls , the outside diameter of 120 nm and the inside diameter of 110 nm . from the cyclic voltammetry , the array electrodes in an acidic electrolytic solution had greater capacitance than the case in a neutral electrolytic solution . the specific capacitance of 365 f / g was achieved with the discharge current density of 210 ma / g in the solution of 1 mol / l h2so4 扫描电子显微镜和透射电子显微镜对碳纳米管阵列电极的形貌表征表明碳纳米管形状规整，排列有序，尺寸均匀，管壁光滑，外径约为120nm ，内径约为110nm ；循环伏安实验表明mwnts阵列电极在酸性溶液中比在中性溶液中具有更好的电容性能；根据恒电流充放电法得出mwnts阵列电极在1mol / lh _ 2so _ 4水溶液中，在210ma / g的放电电流密度下的比电容可达353f / g ，比目前报道的无序碳纳米管和活性炭电极的比容量都高得多；其它电化学实验显示该电极具有很低的内阻和良好的充放电循环稳定性。
However , carbon suffers from slow deterioration by oxidation and high internal resistance ; and it is uncertain to the stability and cycle property of conducting polymer as electrode materials . many transition - metal oxides are known as excellent electrode materials for supercapacitors with charge - storage mechanisms based predominantly on pseudo - capacitance 碳基超级电容器比容量小，氧化时易发生腐蚀，内阻较大；过渡金属氧化物作为电极材料是利用氧化还原反应获得的准电容来存储能量，比电容大。
The current reseach is focused on the the following two aspects : one is the further exploration for some materials with high specific capacitance , including the modification of the existed synthesis methods , the expansion of the electrochemical window , and the quest for some new electrode materials for supercapacitors ; and the other is to enhance the power property , that is , to increase the specific power density within the maximum limit 当前研究主要集中在以下两个方面:一、寻找更高比电容的材料,采用的方法包括改良已有的材料的合成方法,拓展电位窗口,寻求新的超级电容器电极材料等。二、提高材料的能量输出特性,即在最大限度内提高材料的比功率。
