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以吡咯作为原料,采用爆炸辅助的化学气相沉积法,成功地合成了氮杂介孔碳纳米颗粒。颗粒尺寸为30~70nm,含有直径为2~4nm的介孔,氮掺杂量为8.81%(at)。在此过程中,爆炸反应产生的热能将吡咯分解成碳氮原子簇,这些原子簇在动力学驱动下组装成纳米颗粒。爆炸产生的高能氧化性气体与颗粒上缺陷处的碳原子反应形成孔,体系独特的高温环境有利于对碳纳米颗粒进行有效的结构性氮掺杂,并形成较好的晶化结构。
Pyridine as raw material, the use of explosion-assisted chemical vapor deposition method, the successful synthesis of nitrogen mesoporous carbon nanoparticles. The particle size is 30-70 nm, containing mesopores 2 to 4 nm in diameter, and the amount of nitrogen doping is 8.81% (at). In this process, the heat generated by the explosion reaction decomposes pyrrole into carbon-nitrogen clusters, which are kinematically driven into nanoparticles. The high-energy oxidizing gas generated by the explosion reacts with the carbon atoms in the defects on the particles to form pores. The unique high-temperature environment of the system is conducive to effective structural nitrogen doping of the carbon nano-particles and the formation of a better crystallized structure.