Ho Y M, Yang G M, Zheng W T, Wang X, Tian H W, Xu Q, Li H B, Liu J W, Qi J L, Jiang Q
Department of Materials Science, Jilin University, Qianjin Road 2699, Changchun 130012, People's Republic of China.
Nanotechnology. 2008 Feb 13;19(6):065710. doi: 10.1088/0957-4484/19/6/065710. Epub 2008 Jan 23.
Hybrid ZnO-carbon nanotubes as well as nanodiamond-carbon nanotubes were synthesized via a straightforward process of plasma enhanced chemical vapor deposition. For the former, ZnO nanoparticles were instantly coated on the tube surface in the final growing process of carbon nanotubes, while for the latter diamond nanoparticles were grown using pretreatment of a silicon substrate with Ni(NO(3))(2)·6H(2)O/Mg(NO(3))(2)·6H(2)O alcohol solution prior to deposition and a high H(2)/CH(4) gas flow ratio in the deposition process. The morphology and microstructure of the obtained hybrid materials were characterized by transmission electron microscopy. Both hybrid ZnO-carbon nanotubes and nanodiamond-carbon nanotubes exhibited excellent field emission properties.
通过等离子体增强化学气相沉积的简单过程合成了混合氧化锌-碳纳米管以及纳米金刚石-碳纳米管。对于前者，在碳纳米管的最终生长过程中，氧化锌纳米颗粒立即包覆在管表面，而对于后者，在沉积之前，使用Ni(NO₃)₂·6H₂O/Mg(NO₃)₂·6H₂O醇溶液对硅衬底进行预处理，并在沉积过程中采用高H₂/CH₄气体流量比来生长金刚石纳米颗粒。通过透射电子显微镜对所得混合材料的形态和微观结构进行了表征。混合氧化锌-碳纳米管和纳米金刚石-碳纳米管均表现出优异的场发射性能。
