| Synthesis of ZrO2-HfO2-Y2O3-Sc2O3 Nano-Particles by Sol-Gel Technique in Aqueous Solution of Alcohol |
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| 引用本文： | 甄强,陈瑞芳,严凯,李榕. Synthesis of ZrO2-HfO2-Y2O3-Sc2O3 Nano-Particles by Sol-Gel Technique in Aqueous Solution of Alcohol[J]. 中国稀土学报(英文版), 2007, 25(2): 199-203. DOI: 10.1016/S1002-0721(07)60073-8 |
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| 作者姓名： | 甄强 陈瑞芳 严凯 李榕 |
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| 作者单位： | School of Materials Science and Engineering Shanghai University，School of Materials Science and Engineering Shanghai University，School of Materials Science and Engineering Shanghai University，School of Materials Science and Engineering Shanghai University，Shanghai 200072 China，Research Center of Nanoscience and Nanotechnology Shanghai University Shanghai 200444 China，Shanghai 200072 China，Shanghai 200072 China，Shanghai 200072 China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （20101006）, Nano Technology Special Foundation of Shanghai Science and Technology Committee （0452nm073） and Shanghai Education Committee |
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| 摘 要： | Zirconium dioxide is a significant material withgood physicochemical characteristics . It is used inmanyfields such as energysources ,material and envi-ronment . Cubic phase zirconium dioxide doped withyttria (YSZ) is alreadyin wide use in solid oxygenfu-…
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| 关 键 词： | 乙醇水溶液 溶胶-凝胶技术 ZrO2-HfO2-Y2O3-Sc2O3 复合纳米粉末 合成 |
| 文章编号： | 1002-0721（2007）02-0199-05 |
| 收稿时间： | 2006-07-31 |
| 修稿时间： | 2006-10-15 |
Synthesis of ZrO2-HfO2-Y2O3-Sc2O3 Nano-Particles by Sol-Gel Technique in Aqueous Solution of Alcohol |
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| Qiang , Ruifang Chen, Kai Van,Rong Li. Synthesis of ZrO2-HfO2-Y2O3-Sc2O3 Nano-Particles by Sol-Gel Technique in Aqueous Solution of Alcohol[J]. Journal of Rare Earths, 2007, 25(2): 199-203. DOI: 10.1016/S1002-0721(07)60073-8 |
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| Authors: | Qiang Ruifang Chen Kai Van Rong Li |
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| Affiliation: | aSchool of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;bResearch Center of Nanoscience and Nanotechnology, Shanghai University, Shanghai 200444, China |
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| Abstract: | Agglomeration-free nanosized ZrO2-HfO2-Y2O3-Sc2O3 composite powders were successfully synthesized by Sol-Gel technique in heated aqueous solution of alcohol, using analytically pure ZrOCl2 · 8H2O, HfOCl2 · 8H2O, Y(NO3)3 · 6H2O, and Sc2O3 as raw materials. The effect of synthesis condition on the size and dispersity of the composite powders was investigated by means of XRD, TEM, and TG-DSC techniques. The results showed that well-dispersed predecessor of ZrO2-HfO2-Y2O3-Sc2O3 composite nanopowders could be obtained. The optional condition: PEG6000 as dispersant was 1 %, alcohol/H2O ratio was 5/1, metallic ion concentration in whole solution was 0.5 mol · L−1 and the pH value of the solution was 12. After calcined at 620 °C, the powder obtained was in uniform cubic structure, and its average particle size was about 13 nm, which was good for producing nanocrystalline solid electrolyte. |
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| Keywords: | ZrO2-HfO2-Y2O3-Sc2O3 composite nanopowders sol-gel aqueous solution of alcohol dispersibility rare earths |
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