【摘 要】
:
The graphite encapsulated α-Fe particles were prepared by reduction of stage-2 and stage-3 FeCl3 graphite intercalation compounds (GICs) with metallic potassiu
【机 构】
:
School of Materials Science & Engineering,School of Resource & Environmental Engineering
【出 处】
:
武汉理工大学学报(材料科学版)(英文版)
【基金项目】
:
湖北省自然科学基金;the Fund from the Chengguang Plan of Wuhan
论文部分内容阅读
The graphite encapsulated α-Fe particles were prepared by reduction of stage-2 and stage-3 FeCl3 graphite intercalation compounds (GICs) with metallic potassium. X-ray diffraction analysis (XRD), energy dispersive X-ray spectroscopy (EDS) investigation and transmission electron microscopy (TEM) observation show that the reduction products of stage-2 FeCl3-GICs contains more abundant α-Fe nanoparticles than those of stage-3. High-resolution TEM (HRTEM) observation reveals that the nanoparticle of α-Fe was polycrystals or twins, which was real or quasi two-dimension in shape, and whose space orientation was strictly controlled by the graphene. Based on the experiment results, a possible growth model of the graphite encapsulated α-Fe was proposed.
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