Synthesis and structural properties of PbTiO3 nanotube arrays using a TiO2 template-assisted hydrothermal method

被引:5
|
作者
Kim, Bo Hyeon [1 ]
Cho, Sam Yeon [1 ]
Kim, Eun-Young [1 ]
Bu, Sang Don [1 ]
机构
[1] Jeonbuk Natl Univ, Res Inst Phys & Chem, Dept Phys, Jeonju 54896, South Korea
基金
新加坡国家研究基金会;
关键词
Ferroelectric; PbTiO3; nanotubes; Hydrothermal; TiO2; template; Anodization; ONE-DIMENSIONAL NANOSTRUCTURES; NANOPARTICLES; TUBES;
D O I
10.1007/s40042-022-00640-6
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
One-dimensional PbTiO3 (PTO) nanotubes (NTs) were fabricated via a hydrothermal method based on an anodized TiO2 template. Anatase-structured TiO2 NTs were converted into tetragonal-structured PTO NTs by the entry of Pb2+ ions from high pressure generated during the hydrothermal process. This was confirmed through structural analysis using X-ray diffraction and Raman scattering; increase in the wall thickness of the NTs was observed. However, it was observed that when the conversion process from TiO2 to PTO NTs exceeds the saturation state, the surface morphology of PTO NTs is changed, and PbO particles are formed on the PTO NTs. This constitutes an inhibitory factor in forming PTO NT arrays with clear surface morphology. To prevent this phenomenon, we successfully fabricated PTO NT arrays by controlling the reaction temperature, reaction time, and molar concentration of lead acetate solutions in a hydrothermal process.
引用
收藏
页码:40 / 45
页数:6
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