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投稿时间：2012-02-07 修订日期：2012-02-08 录用日期：2012-02-09 网络发布日期：2012-08-20
投稿时间：2012-02-07 修订日期：2012-02-08 录用日期：2012-02-09 网络发布日期：2012-08-20
中文摘要: 以Y2O3、Yb2O3、Al(NO3)3?9H2O和Ce(NO3)3?6H2O为原料，NH4HCO3、NH3?H2O做复合沉淀剂，用共沉淀法制备纳米稀土石榴石Ln3Al5O12(LnAG, Ln=Y, Ce, Yb)粉体。用TG/DTA、XRD、SEM、TEM等手段对LnAG前驱体及煅烧后的粉体进行了表征。结果表明，用上述方法在1 000 ℃煅烧3 h可得到分散性好、形状规则且粒径为50 nm左右的Y3Al5O12、Yb3Al5O12、Y2.9Ce0.1Al5O12石榴石粉体，但不能得到Ce3Al5O12石榴石，合成石榴石粉体的最佳煅烧温度为1 050 ℃以上。
Abstract:Ln3Al5O12(LnAG, Ln=Y, Ce, Yb) lanthanide aluminium garnets nanopowders were prepared by co-precipitation method with Y2O3, Yb2O3, Al(NO3)3?9H2O and Ce(NO3)3?6H2O as raw materials, NH4HCO3 and NH3?H2O as co-precipitator. The precursor and calcined powders were characterized with TG/DTA, XRD, SEM and TEM. The results show that well dispersive, regular shape Y3Al5O12, Yb3Al5O12, Y2.9Ce0.1Al5O12 garnets powders with an average particle size of about 50 nm were obtained by calcining the precursor at 1 000 ℃ for 3 h. However, Ce3Al5O12 does not formed under the same experimental conditions. The optimum calcining temperature to synthetize garnets powder is above 1 050 ℃.
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基金项目:国家杰出青年基金项目（51025416）；教育部春晖计划项目（Z2009-1-01051）；长江学者和创新团队发展计划资助项目（50725416）
| Author Name | Affiliation | |
| limei | Inner Mongolia University of Science and Technology | bblh85@163.com |
| lihai | bblh85@163.com | |
| liu zhao-gang | ||
| hu yan-hon | ||
| wang mi-tang |
引用文本：
李梅,李海,柳召刚,胡艳宏,王觅堂.共沉淀法制备稀土石榴石Ln3Al5O12(Ln=Y, Ce, Yb)[J].有色金属（冶炼部分）,2012(9):64-68.
limei,lihai,liu zhao-gang,hu yan-hon,wang mi-tang.Preparation of Ln3Al5O12(Ln=Y, Ce, Yb) Lanthanide Aluminium Garnets with Co-precipitation Method[J].Nonferrous Metals (Extractive Metallurgy),2012(9):64-68.
李梅,李海,柳召刚,胡艳宏,王觅堂.共沉淀法制备稀土石榴石Ln3Al5O12(Ln=Y, Ce, Yb)[J].有色金属（冶炼部分）,2012(9):64-68.
limei,lihai,liu zhao-gang,hu yan-hon,wang mi-tang.Preparation of Ln3Al5O12(Ln=Y, Ce, Yb) Lanthanide Aluminium Garnets with Co-precipitation Method[J].Nonferrous Metals (Extractive Metallurgy),2012(9):64-68.
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