Gold/titania core/sheath nanowires prepared by layer-by-layer assembly

被引:70
作者
Guo, YG [1 ]
Wan, LJ [1 ]
Bai, CL [1 ]
机构
[1] Chinese Acad Sci, Ctr Mol Sci, Inst Chem, Beijing 100080, Peoples R China
关键词
D O I
10.1021/jp034184q
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
The strategy of layer-by-layer (LbL) self-assembly and calcining has been employed to prepare Au/TiO(2) core/sheath nanowires. Ordered arrays were achieved by using an LbL assembly of cationic polyelectrolytes and inorganic precursors on template-grown Au nanowires. The wires were investigated with SEM, TEM, and X-ray energy dispersion analysis. The prepared composite nanowires were found to possess anatase porous sheaths of TiO(2) with face-center-cubic polycrystallite An cores. The assembly strategy will be useful in fabricating core/sheath nanowires. The first reported core/porous-sheath nanowire is expected to be an ideal nanostructure for chemical sensors and photocatalysis due to its composite and highly porous structure.
引用
收藏
页码:5441 / 5444
页数:4
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