摘要
石墨结构层包嵌铁纳米粒子是一种纳米尺度复合材料,具有类似三明治的结构.研究表明,其拉曼光谱的E2g2模出现了红移,说明铁纳米粒子外部原子将部分电荷转移给了碳网,与其X射线光电子能谱的分析结果吻合.2阶和3阶石墨层间化合物前驱体的拉曼光谱与其它受主型石墨层间化合物的类似,其内部层碳网和边界层碳网的E2g2模频率不同.
Graphene encapsulated iron nanoparticles（GEINPs） is a composite in nanometer scale.Its structure is like a sandwich that the iron nanoparticles are contained in graphite gallery.It was showed in this paper that the vibration frequency of mode was red shift in the Raman spectra of graphene encapsulated iron nanoparticles.The result revealed that the partial charge of outer atoms of the iron nanoparticles encapsulated in graphite gallery had been transferred to the hexagonal carbon nets and the result was coincident with that of X-ray photoelectron spectroscopy.The Raman spectra of precursors,stage 2 and stage 3 graphite intercalation compounds were similar to that of acceptor type graphite intercalation compounds,and the frequency of mode of outer carbon layer is different from that of inner carbon layer.
出处
《武汉工程大学学报》
CAS
2010年第12期60-64,共5页
Journal of Wuhan Institute of Technology
基金
国家自然科学基金(50774071/E0402)
湖北省教育厅科学研究项目(D20091505)资助
