| 纳米氧化镧的固相合成 |
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| 引用本文： | 刘厚凡,李日生,马李秀,胡丽君,甘露. 纳米氧化镧的固相合成[J]. 有色金属(冶炼部分), 2006, 0(5): 45-47 |
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| 作者姓名： | 刘厚凡 李日生 马李秀 胡丽君 甘露 |
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| 作者单位： | 南昌大学化学系,江西,南昌,330047 |
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| 摘 要： | 以LaCl_3·6H_2O和H_2C_2O_4·2H_2O为原料,用室温固相化学反应首先合成出前驱物草酸镧,经750℃分解3h,得到产物纳米氧化镧。用X-射线粉末衍射和透射电镜对产物的组成、大小、形貌进行表征。结果表明：纳米氧化镧为粒度分布均匀的长方体形结构,平均粒径12nm。并考察了表面活性剂对粒径大小和分散性的影响。
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| 关 键 词： | 氧化镧 纳米氧化物 固相合成 晶粒度 |
| 文章编号： | 1007-7545(2006)05-0045-03 |
Solid State Synthesis of Nanometer Lanthanum Oxide |
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| LIU Hou-fan,LI Re-sheng,MA Li-xiu,HU Li-jin,GAN Lu. Solid State Synthesis of Nanometer Lanthanum Oxide[J]. Nonferrous Metals(Extractive Metallurgy), 2006, 0(5): 45-47 |
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| Authors: | LIU Hou-fan LI Re-sheng MA Li-xiu HU Li-jin GAN Lu |
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| Abstract: | Precursor La_2(C_2O_4)_3·3H_2O was synthesized by solid state reaction of LaCl_3·6H_2O with H_2C_2O_4·2H_2O at room temperature.Nanocrystalline La_2O_3 was obtained by decomposition of the precursor at 750℃for 3h.The component,size and shape of this product have been characterized by XRD and TEM.The results show that La_2O_3 nanocrystalline has rectangle structure,and have a mean diameter of about 12nm.The effects of adding surfactants to the size and disperse of particles have been discussed. |
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| Keywords: | Lanthanum oxide Nano oxide Solid-state synthesis Grain size |
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