【摘要】 采用爆炸辅助化学气相沉积法,以N,N-二甲基甲酰胺(DMF)为原料,在金属催化剂作用下合成了粒径分布在20nm~40nm的中空碳纳米颗粒.更为重要的是,发现中空碳纳米颗粒可在无金属催化剂作用下自组装形成.在此过程中,控制炸药和碳源的比例对于碳颗粒的结构和尺寸有重要影响.当炸药与碳源的摩尔比例合适时,产物中中空碳纳米颗粒的含量达到95%以上,且粒径分布均匀,约为10nm.更多还原

【Abstract】 Hollow carbon nanoparticles with particle size of 20 nm-40 nm have been synthesized in a metal-containing system using N,N-dimethyllformamide (DMF) as the carbon source via detonation-assisted chemical vapor deposition. More significantly, it was found that hollow carbon nanoparticles can be self-assembled synthesized without metal catalyst. In this process, the structures and sizes of the carbon nanoparticles are heavily depending on the ratio of explosive and carbon source. If the ratio of expolsive∶DMF is appropriate, hollow carbon nanoparticles are over 95%, and their particle size is around 10 nm with a narrow size distribution.更多还原