Lanthanide hydroxide nanorods and their thermal decomposition to lanthanide oxide nanorods

详细信息    查看全文

• 作者：Ning Zhang ; Ran Yi ; Libin Zhou ; Guanhua Gao ; Rongrong Shi ; Guanzhou Qiu ; Xiaohe Liu
• 关键词：Hydrothermal ; Lanthanide hydroxide ; Lanthanide oxide ; Nanorod
• 刊名：Materials Chemistry and Physics
• 出版年：2009
• 出版时间：15 March 2009
• 年：2009
• 卷：114
• 期：1
• 页码：160-167
• 全文大小：1878 K

文摘

Lanthanide hydroxide (La(OH)₃, Nd(OH)₃, Sm(OH)₃, Gd(OH)₃, and Dy(OH)₃) nanorods were successfully synthesized via a convenient hydrothermal synthetic method using triethylamine as both alkaline agent and complexing agent. The influences of reaction temperature and concentration of triethylamine on the formation of lanthanum hydroxide nanorods were investigated in this paper. Lanthanide oxide (La₂O₃, Nd₂O₃, Sm₂O₃, Gd₂O₃, and Dy₂O₃) nanorods could be obtained via calcining the corresponding lanthanide hydroxide counterparts. Europium-doped Gd₂O₃ nanorods were also prepared through similar method. The phase structures, morphologies and optical properties of the as-prepared products were investigated in detail by X-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED), high-resolution transmission electron microscopy (HRTEM), and photoluminescence spectra (PL).