Abstract This paper reported a gas phase reaction to synthesize e-Fe 3 N nanoparticles with controlled annealing conditions. Vaporized iron pentacarbonyl (Fe(CO) 5 ) was used as the iron source, and ammonia (NH 3 ) was used as the nitrogen source. In three parallel experiments, the annealing time of the nanoparticles was controlled. The particle morphologies and lattice parameters of the as-synthesized particles were characterized by TEM, and the crystal structure and crystallization level were determined by XRD. The magnetic properties were measured by VSM. The experimental results showed that enhanced crystallization and magnetization were obtained on the nanoparticles with longer annealing time.

中文翻译：

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通过气相反应在受控退火条件下合成单分散的 ε-Fe 3 N 纳米粒子

摘要 本文报道了在受控退火条件下合成 e-Fe 3 N 纳米粒子的气相反应。汽化五羰基铁(Fe(CO) 5 )用作铁源，氨(NH 3 )用作氮源。在三个平行实验中，控制纳米颗粒的退火时间。通过TEM表征合成颗粒的颗粒形态和晶格参数，并通过XRD确定晶体结构和结晶水平。通过VSM测量磁性能。实验结果表明，退火时间越长，纳米颗粒的结晶化和磁化强度越高。