Sn@ MnOx核壳结构微/纳米线的合成和结构表征

Sn@ MnOx核壳结构微/纳米线的合成和结构表征

于  斐¹，王少博¹，徐国梁¹，石  峰²，刘丹敏¹1*

(北京工业大学1. 固体微结构与性能研究所，北京100124；2.材料科学与工程学院，北京100124）

摘  要 本文合成了一种新型结构的微/纳米线。利用光学显微镜、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和能量色散X射线谱（EDS）对所合成微/纳米线的形态、组成和微观结构进行研究。结果显示β-Sn 微/纳米线作为“核”，超薄非晶态MnO_X纳米片作为“壳”层，完全把β-Sn 包裹住，形成Sn @ MnOx微/纳米线异质结构。

关键词  Sn纳米线；核壳纳米结构；MnOx；β-Sn

中图分类号：TB383；TG115.21+5.3；TH742 

文献标识码：Adoi:10.3969/j.issn.1000-6281.2020.02-004

Synthesis and structural characterization of Sn@ MnOx core-shell micro/nanowires

YU Fei¹，WANG Shao-bo¹，XU Guo-liang¹，SHI Feng²，Liu Dan-min^1*

(1.Institute of Microstructure and property of Advanced Materials, Beijing University of Technology, Beijing 100124；2.College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China)

Abstract  We synthesized a novel structure of micro/nanowires. The morphology, composition and microstructure of the synthesized nanowires were investigated by optical microscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray (EDS). It was found that the β-Sn micro/nanowire acts as a“nucleus”, the ultra-thin amorphous MnO_X nanosheet acts as a "shell" layer, completely encapsulating β-Sn to form a Sn @ MnOx micro/nanowire heterostructure, distinctly different from any previously reported nano- and microtubes.

Keywords  Sn nanowire；core-shell nanostructure；MnO_X；β-Sn

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