CAJ | 학술논문

介绍了一种制备大而积高纯度单壁碳纳米管(SWCNT)薄膜的新方法.利用改进的电弧放电法,在真空放电室内分别安装两枚石墨极板,使之形成一个球冠型电容器.使用这种新型装置,可以在两枚球冠型石墨极板之间产生一个合适的附加电场和成膜基板,通过控制放电时间,可在阴极的球冠型石墨极板卜制备出厚度从数微米至1毫米不等的SWCNT薄膜.场发射扫描电子显微镜(FESEM)、高分辨透射电子显微镜(HRTEM)、拉曼光谱和热重分析(TGA)的表征结果表明,这个方法可以高效地制备具有高纯度的SWCNT薄膜.
개소료일충제비대이적고순도단벽탄납미관(SWCNT)박막적신방법.이용개진적전호방전법,재진공방전실내분별안장량매석묵겁판,사지형성일개구관형전용기.사용저충신형장치,가이재량매구관형석묵겁판지간산생일개합괄적부가전장화성막기판,통과공제방전시간,가재음겁적구관형석묵겁판복제비출후도종수미미지1호미불등적SWCNT박막.장발사소묘전자현미경(FESEM)、고분변투사전자현미경(HRTEM)、랍만광보화열중분석(TGA)적표정결과표명,저개방법가이고효지제비구유고순도적SWCNT박막.
A novel method to synthesize single-walled carbon nanotube (SWCNT) films with large area and high purity was introduced. An arc-discharge facility was improved by adding two graphite plates to the electrodes to form a spherical cap capacitor in the vacuum cavity so that an additional electric field of appropriate intensity could be generated. Using this new facility, single-walled carbon nanotube films of different thicknesses ranging from a few microns to a millimeter (controlled by the discharge time) were synthesized on a spherical cathode graphite plate. The film structures were characterized by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), Raman spectroscopy, and thermogravimetric analysis (TGA). Results show that this is an efficient way to produce single-walled carbon nanotube films of high purity.