| Preparation of silver tin oxide powders by hydrothermal reduction and crystallization |
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| 引用本文： | DU Zuojuan YANG Tianzu GU Yingying QIU Xiaoyong DOU Aichun. Preparation of silver tin oxide powders by hydrothermal reduction and crystallization[J]. 稀有金属(英文版), 2007, 26(5): 470-475. DOI: 10.1016/S1001-0521(07)60247-2 |
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| 作者姓名： | DU Zuojuan YANG Tianzu GU Yingying QIU Xiaoyong DOU Aichun |
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| 作者单位： | [1]School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China [2]School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
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| 摘 要： | Silver tin oxide composite powders were synthesized by the hydrothermal method with a silver ammine solution and a Na2SnO3 solution as raw materials. H2C2O4 was used as the co-precipitator of silver ions and tin ions. The co-precipitation conditions were investigated. The results show that the co-precipitate of Ag2C2O4 and Sn（OH）4 is available when the pH value of the solution is 4.27-8.36. Using the obtained precipitate as precursor,the reduction of Ag＋ and the crystallization of tin oxide were carried out simultaneously by the hydrothermal method and silver tin oxide composite powders were obtained. The composite powders were characterized by X-ray diffraction （XRD） analysis,scanning electron microscope （SEM）,and energy spectrum analysis. The results show that the silver tin oxide composite powders are small with a diameter of about 2 μm and with homogeneous distribution of tin.
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| 关 键 词： | 复合材料 银锡氧化物 热还原 结晶 |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006-07-03 |
Preparation of silver tin oxide powders by hydrothermal reduction and crystallization |
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| DU Zuojuan,YANG Tianzu,GU Yingying,QIU Xiaoyong,DOU Aichun. Preparation of silver tin oxide powders by hydrothermal reduction and crystallization[J]. Rare Metals, 2007, 26(5): 470-475. DOI: 10.1016/S1001-0521(07)60247-2 |
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| Authors: | DU Zuojuan YANG Tianzu GU Yingying QIU Xiaoyong DOU Aichun |
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| Affiliation: | 1. Faculty of Physics, Warsaw University of Technology, Koszykowa 75, PL 00–662 Warsaw, Poland;2. Institut des Matériaux Jean Rouxel (IMN-UMR 6502), Université de Nantes, CNRS, 2 rue de la Houssnière, BP 32229, 44322 Nantes Cedex 3, France;1. MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Science, Xi''an Jiaotong University, Xi''an 710049, China;2. Department of Mechanical Engineering, University of Michigan-Dearborn, 4901 Evergreen Rd, Dearborn, MI 48128, USA;3. Department of Electrical and Computer Engineering, Kettering University, Flint, MI-48504, USA |
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| Abstract: | Silver tin oxide composite powders were synthesized by the hydrothermal method with a silver ammine solution and a Na2SnO3 solution as raw marrials. H2C2O4 was used as the co-precipitator of silver ions and tin ions. The co-precipitation conditions were investigated. The results show that the co-precipitate of Ag2C2O4 and Sn(OH)4 is available when the pH value of the solution is 4.27-8.36. Using the obtained precipitate as precursor, the reduction of Ag+ and the crystallization of tin oxide were carried out simultaneonsly by the hydrothermal method and silver tin oxide composite powders were obtained. The composite powders were characterized by X-ray diffraction (XRD) analysis, scanning electron microscope (SEM), and energy spectrum analysis. The results show that the silver tin oxide composite powders are small with a diameter of about 2 μm and with homogeneous distribution of tin. |
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| Keywords: | composite material silver tin oxide hydrothermal method co-precipitation |
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