Syntheses of rare-earth metal oxide nanotubes by the sol-gel method assisted with porous anodic aluminum oxide templates
Syntheses of rare-earth metal oxide nanotubes by the sol-gel method assisted with porous anodic aluminum oxide templates
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DOI：
10.1016/j.jssc.2007.01.021
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发表时间：
2007-04
影响因子：
3.3
通讯作者：
Q. Kuang;Zhi‐Wei Lin;Wei-Ren Lian;Zhiyuan Jiang;Zhaoxiong Xie;Rong-Bin Huang;Lan-Sun Zheng
中科院分区：
文献类型：
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作者：
Q. Kuang;Zhi‐Wei Lin;Wei-Ren Lian;Zhiyuan Jiang;Zhaoxiong Xie;Rong-Bin Huang;Lan-Sun Zheng
本文报道了一种制备有序稀土金属氧化物纳米管的方法。以稀土硝酸盐溶液为原料，采用多孔阳极氧化铝（AAO）为模板，采用溶胶-凝胶法成功制备了稀土氧化物纳米管（RE=Y，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Yb）。采用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、高分辨率TEM和X射线衍射（XRD）对所制备的纳米管的形态和组成进行了表征。结果表明，所制备的稀土氧化物纳米管呈竹节状和完全中空的结构。提出了一种新的可能的稀土氧化物纳米管的形成机制。这些高含量的稀土氧化物纳米管在发光材料、催化剂、磁体等方面具有广阔的应用前景。
In this paper, we report a versatile synthetic method of ordered rare-earth metal (RE) oxide nanotubes. RE (RE=Y, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb) oxide nanotubes were successfully prepared from corresponding RE nitrate solution via the sol–gel method assisted with porous anodic aluminum oxide (AAO) templates. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM, and X-ray diffraction (XRD) have been employed to characterize the morphology and composition of the as-prepared nanotubes. It is found that as-prepared RE oxides evolve into bamboo-like nanotubes and entirely hollow nanotubes. A new possible formation mechanism of RE oxide nanotubes in the AAO channels is proposed. These high-quantity RE oxide nanotubes are expected to have promising applications in many areas such as luminescent materials, catalysts, magnets, etc.