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以沸点为50℃的全氟碳为碳源,金属钠为还原剂,采用溶剂热的方法,在400℃时合成了蓬松的球形碳纳米颗粒,产率高达90%。结果表明,Na在全氟碳分解成碳的过程中起关键作用,而反应温度起到控制碳颗粒大小的作用;氮气吸附脱附结果表明,400℃时合成碳纳米颗粒为介孔材料的特征吸附脱附等温线,比表面积为51.8m2/g,孔径主要集中在4.5～45nm。
Using perfluorocarbon with a boiling point of 50 ℃ as carbon source and metallic sodium as reductant, fluffy spherical carbon nano-particles were synthesized by solvothermal method at a yield of 90%. The results showed that Na plays a key role in the decomposition of perfluorocarbon into carbon, and the reaction temperature plays a role in controlling the size of carbon particles. The results of nitrogen adsorption and desorption show that the synthesis of carbon nanoparticles at 400 ℃ is characterized by mesoporous materials Adsorption and desorption isotherms, the specific surface area of 51.8m2 / g, pore size mainly concentrated in the 4.5 ~ 45nm.