【摘要】 添加不同种类和含量的粘结剂,通过冷压和热压方法,结合炭化处理等不同工艺制备纳米碳管电极,利用DC-5电池测试仪分析其在盐水中的充放电性能,比较其电吸附比电容和等效电阻,发现当聚四氟乙烯(PTFE)的量为10％,聚偏氟二乙烯(PVDF)的量为15％时, 电极可以冷压成型;酚醛树脂(PR)的量为20％时,电极可以热压成型,随着粘结剂的增加, 电极在盐水中的电吸附比电容降低,等效电阻增大．通过纳米碳管电极表面结构、形貌、亲水性及在盐水中电吸附电容和等效电阻的分析,对其脱盐性能进行比较,发现添加20％PR粘结剂热压成型电极经炭化后,其比表面积大,内部孔隙丰富,亲水性好,在盐水中电吸附比电容大,等效电阻小,电吸附脱盐效果最为显著．更多还原

【Abstract】 The carbon nanotube electrodes with different kinds and quantities of binders, using methods such as press molding at room-temperature and hot-press molding combined with carbonization, were moulded. The charge-discharge tests of the electrodes were performed in saltwater by the DC-5 battery testing instrument, and the specific electro-adsorption capacitance and equivalent resistance were compared. The results are as follows: the electrodes can be molded at room-temperature with 10% polytetrafluoroethylene (PTFE) or 15% polyvinylidene fluoride (PVDF) and at high temperature with 20% phenolic resin (PR), and the specific electro-adsorption capacitance decreases and the equivalent resistance increases with the increasing content of the binders. The surface structure, morphology, specific electro-adsorption capacitance, equivalent resistance and hydrophilicity of the electrodes were investigated, and the electro-adsorption desalination performances were compared. The results show that the electrode hot-pressed with 20% PR, after carbonization, with high specific surface area, many pores, good hydrophilicity, high specific electro-adsorption capacitance and low equivalent resistance, has the best electro-adsorption desalination performance.更多还原