用激光液相法制备出纳米碳粉.脉冲激光辐射靶材表面生成碳的高能等离子体团,等离子体团与丙酮溶液中的液相体系发生能量交换形成了纳米碳颗粒.用团簇成核的经典理论分析了形成纳米碳颗粒的机理.制备出的纳米碳粉大部分呈球状,少部分呈枝状形貌,为非晶或多晶态组织结构,粒径分布为20～80 nm;纳米碳的颗粒大小和微观结构主要与反应温度和激光工艺参数有关.
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