CAJ | 학술논문

利用两步氧化法,通过对氧化直流电压进行周期性调制可制备出带有Y型孔道的氧化铝模板; 然后以金属钴为催化剂,乙炔为碳源,通过CVD法制取得到具有规则Y型分支的碳纳米管阵列.已制备出的碳管分支角度在 20°～120°的范围内.实验表明,两段分支所成的角度以及分支的长度与合成氧化铝模板的脉冲电压调节规律有关,短脉冲,高氧化电压有利于生长出的短而密集的分支构型.
이용량보양화법,통과대양화직류전압진행주기성조제가제비출대유Y형공도적양화려모판; 연후이금속고위최화제,을결위탄원,통과CVD법제취득도구유규칙Y형분지적탄납미관진렬.이제비출적탄관분지각도재 20°～120°적범위내.실험표명,량단분지소성적각도이급분지적장도여합성양화려모판적맥충전압조절규률유관,단맥충,고양화전압유리우생장출적단이밀집적분지구형.
In this work, potential-modulation method was used in two-step anodization process to make an AAO template with Y-type nanochannels. Then Y-type carbon nanotubes with controlled length and branch angle were prepared in the template based on chemical vapor decomposion (CVD) method with Co particles as catalyst and C2H2 as carbon source. The Y-type nanotube branches exhibit the angle distribution ranging from 20° to 120°. The results demonstrated that the oxidation potential should be responsible for the angles and length of the branches. Short pulse and high oxidation potential will result in the short and dense nanotube branches.