石墨结构层包嵌α-Fe纳米粒子及其前驱体的谱学研究  

Raman spectroscopy and XPS of graphene embedded iron nano-particles and their precursors

作　　者：薛俊[1,2] 杨杰[1] 王胜军[1] 向厚奎[1] 王学华[1] 曹宏[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,湖北武汉430074 [2]武汉材料保护研究所,湖北武汉430030

出　　处：《武汉工程大学学报》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

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.

关 键 词：石墨结构层 铁纳米粒子 层间化合物 拉曼光谱 XPS 

分 类 号：TB383[一般工业技术—材料科学与工程]