Template induced sol–gel synthesis of highly ordered LaNiO3 nanowires
Template induced sol–gel synthesis of highly ordered LaNiO3 nanowires
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DOI：
10.1016/j.jssc.2005.01.022
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发表时间：
2005-04
影响因子：
3.3
通讯作者：
Zhi Yang;Yi Huang;B. Dong;Hu-lin Li
中科院分区：
文献类型：
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作者：
Zhi Yang;Yi Huang;B. Dong;Hu-lin Li
以硝酸盐为原料，柠檬酸为螯合剂，采用溶胶-凝胶法在多孔阳极氧化铝（AAO）模板内控制合成了高度有序的稀土钙钛矿型复合氧化物LaNiO 3纳米线。扫描电子显微镜（SEM）和透射电子显微镜（TEM）的结果表明，所制备的LaNiO 3纳米线具有均匀的长度和直径，这取决于所用AAO模板的厚度和孔径。X射线衍射（XRD）和选区电子衍射（SAED）结果表明，LaNiO 3纳米线为钙钛矿型晶体结构。此外，X射线光电子能谱（XPS）和能量色散X射线能谱（EDX）分析表明，LaNiO 3的形成是化学计量的。
The highly ordered LaNiO3nanowires of the rare-earth perovskite-type composite oxide were controlled synthesized within a porous anodic aluminum oxide (AAO) template by means of sol–gel method using nitrate as raw materials and citric acid as chelating agent. The results of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that the obtained LaNiO3nanowires had a uniform length and diameter, which were determined by the thickness and the pore diameter of the applied AAO template. The results of X-ray diffraction (XRD) and the selected-area electron diffraction (SAED) indicated that the LaNiO3nanowires were perovskite-type crystalline structures. Furthermore, X-ray photoelectron spectroscopy (XPS) and the energy dispersive X-ray (EDX) spectroscopy demonstrated that the stoichiometric LaNiO3was formed.