Synthesis of single-crystal tetragonal α-MnO2 nanotubes

被引:251
作者
Luo, J. [1 ]
Zhu, H. T. [1 ,2 ]
Fan, H. M. [3 ]
Liang, J. K. [1 ,4 ]
Shi, H. L. [1 ]
Rao, G. H. [1 ]
Li, J. B. [1 ]
Du, Z. M. [2 ]
Shen, Z. X. [5 ]
机构
[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
[2] Beijing Univ Sci & Technol, Dept Mat Sci & Engn, Beijing 100083, Peoples R China
[3] Natl Univ Singapore, Dept Phys, Singapore 117548, Singapore
[4] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
[5] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore
关键词
D O I
10.1021/jp8052967
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Single-crystal tetragonal alpha-MnO2 nanotubes have been successfully synthesized by a facile hydrothermal treatment of KMnO4 in the hydrochloric acid solution. The sample has been characterized by X-ray powder diffraction, field emission scanning electron microscopy, transmission electron microscopy, and orientation dependent Raman spectroscopy, which indicates the nanotubes have high-quality crystalline and shape-dependent optical properties. The morphology evolution of the sample reveals that the nanotubes are formed via the solid nanorod by a chemical etching process.
引用
收藏
页码:12594 / 12598
页数:5
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