| Preparation of antimony-doped nanoparticles by hydrothermal method |
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| 作者姓名： | 江名喜 杨天足 古映莹 杜作娟 刘建玲 |
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| 作者单位： | [1]SchoolofMetallurgicalScienceandEngineering,CentralSouthUniversity,Changsha410083,China [2]CollegeofChemistryandChemicalEngineering,HunanUniversity,Changsha410082,China |
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| 基金项目： | Project(2001BA901A09)supportedbytheKeyProgramofScientificandTechnologyActionofWestChinaDevelopment |
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| 摘 要： | Antimony-doped tin oxide (ATO) nanoparticles were prepared by the mild hydrothermal method at 200℃ using sodium stannate, antimony oxide, sodium hydroxide and sulfuric acid as the starting materials. The doped powders were examined by differential thermal analysis(DTA), X-ray diffractometry(XRD) and transmission electron microscopy(TEM). The doping levels of antimony were determined by volumetric method and iodimetry.The results show that antimony is incorporated into the crystal lattice of tin oxide and the doping levels of antimony in the resulting powders are 2.4%, 4.3%and 5.1%(molar fraction). The mean particle size of ATO nanoparticles is in the range of 25 - 30 nm. The effects of antimony doping level on the crystalline size and crystallinity were also discussed.
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| 关 键 词： | 水热处理 锑 锡氧化物 纳米粉末 冶炼工艺 |
Preparation of antimony-doped nanoparticles by hydrothermal method |
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| JIANG Ming-xi,YANG Tian-zu,GU Ying-ying,DU Zuo-juan,LIU Jian-ling.Preparation of antimony-doped nanoparticles by hydrothermal method[J].Transactions of Nonferrous Metals Society of China,2005,15(3):702-705. |
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| Authors: | JIANG Ming-xi YANG Tian-zu GU Ying-ying DU Zuo-juan LIU Jian-ling |
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| Abstract: | Antimony-doped tin oxide(ATO) nanoparticles were prepared by the mild hydrothermal method at 200 ℃ using sodium stannate, antimony oxide, sodium hydroxide and sulfuric acid as the starting materials. The doped powders were examined by differential thermal analysis(DTA), X-ray diffractometry(XRD) and transmission electron microscopy(TEM). The doping levels of antimony were determined by volumetric method and iodimetry.The results show that antimony is incorporated into the crystal lattice of tin oxide and the doping levels of antimony in the resulting powders are 2.4%, 4.3 % and 5.1 % (molar fraction). The mean particle size of ATO nanoparticles is in the range of 25 - 30 nm. The effects of antimony doping level on the crystalline size and crystallinity were also discussed. |
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| Keywords: | hydrothermal process nanoparticle antimony doping tin oxide |
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