Title :
Controllable Synthesis of CNTs Using Pd Catalyst
Author :
Tao, Xinyong ; Zhang, Xiaobin ; Wang, Junlian ; Cheng, Jipeng ; Liu, Fu ; Luo, Junhang ; Luo, Zhiqiang
Author_Institution :
State Key Lab. of Silicon Mater., Zhejiang Univ., Hangzhou
Abstract :
High yields of multi-walled carbon nanotubes are synthesized by chemical vapor deposition of acetylene on palladium nanoparticles supported on porous SiO2. HRTEM results reveal that the carbon nanotubes have novel conical inner structure. By changing the content of palladium in the catalyst, we obtained palladium nanoparticles with different diameter distribution. It was found that the apex angles of cones, the outer diameter and the length have a dependence on the diameter of the palladium nanoparticles. Due to the presence of open graphite layers, these novel carbon nanotubes have fascinating potential for energy storage, filed emission and composites
Keywords :
carbon nanotubes; catalysts; chemical vapour deposition; nanoparticles; palladium; silicon compounds; transmission electron microscopy; C; CNT controllable synthesis; HRTEM; MWNT; SiO2; acetylene chemical vapor deposition; conical carbon nanotube inner structure; multi-walled carbon nanotubes; open graphite layers; palladium catalyst; palladium nanoparticles; porous silica; transmission electron microscopy; Carbon nanotubes; Chemical vapor deposition; Electron emission; Energy storage; Furnaces; Nanoparticles; Palladium; Partial discharges; Silicon; Transmission electron microscopy; carbon nanotube; catalyst; palladium;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on
Conference_Location :
Zhuhai
Print_ISBN :
1-4244-0139-9
Electronic_ISBN :
1-4244-0140-2
DOI :
10.1109/NEMS.2006.334840
