| Preparation of AgSnO2 composite powders by hydrothermal process |
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| 引用本文： | 杨天足 杜作娟 古映莹 邱晓勇 江名喜. Preparation of AgSnO2 composite powders by hydrothermal process[J]. 中南工业大学学报(英文版), 2007, 14(2): 176-180. DOI: 10.1007/s11771-007-0035-y |
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| 作者姓名： | 杨天足 杜作娟 古映莹 邱晓勇 江名喜 |
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| 作者单位： | [1]School of Metallurgical 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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| 基金项目： | Project（2001BA901A09）supported by the Key Program of Science and Technology Action of West China Development |
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| 摘 要： | Silver-tin oxide powders were synthesized by the hydrothermal method with Ag（NH3）2^＋ solution and Na2SnO3 solution as raw materials and Na2SO3 as reductant. The precipitation conditions of Na2SnO3 solution and the reduction conditions of Ag（NH3）2^＋ were also investigated. The powders prepared were characterized by differential thermal analysis （DTA）, X-ray diffraction analysis （XRD）, scanning electron microscope （SEM） and energy spectrum analysis, The results show that pH value of the solution is a key parameter in the formation of Sn（OH）4 precipitate and the reduction reaction of Ag（NH3）2^＋ can release H^＋ ions, which results in synchronous precipitation of Sn（OH）6^2- as Sn（OH）4. The reduction of Ag（NH3）2^＋ and precipitation of Na2SnO3 occur simultaneously and the coprecipitation of silver and tin oxide is reached by the hydrothermal method. The silver-tin oxide composite powders have mainly flake shape of about 0.3 μm in thickness and there exists homogeneous distribution of tin oxide and silver in the powder synthesized.
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| 关 键 词： | 银-氧化锡复合粉末 制备 水热法 共沉淀 结构 |
| 收稿时间： | 2006-06-24 |
| 修稿时间： | 2006-09-02 |
Preparation of AgSnO2 composite powders by hydrothermal process |
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| Yang Tian-zu , Du Zuo-juan , Gu Ying-ying , Qiu Xiao-yong and Jiang Ming-xi. Preparation of AgSnO2 composite powders by hydrothermal process[J]. Journal of Central South University of Technology, 2007, 14(2): 176-180. DOI: 10.1007/s11771-007-0035-y |
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| Authors: | Yang Tian-zu Du Zuo-juan Gu Ying-ying Qiu Xiao-yong Jiang Ming-xi |
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| Affiliation: | (1) School of Metallurgical 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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| Abstract: | Silver-tin oxide powders were synthesized by the hydrothermal method with Ag(NH3)2 + solution and Na2SnO3 solution as raw materials and Na2SO3 as reductant. The precipitation conditions of Na2SnO3 solution and the reduction conditions of Ag(NH3)2 + were also investigated. The powders prepared were characterized by differential thermal analysis (DTA), X-ray diffraction analysis (XRD), scanning electron microscope (SEM) and energy spectrum analysis. The results show that pH value of the solution is a key parameter in the formation of Sn(OH)4 precipitate and the reduction reaction of Ag(NH3)2 + can release H+ ions, which results in synchronous precipitation of Sn(OH)6 2− as Sn(OH)4. The reduction of Ag(NH3)2 + and precipitation of Na2SnO3 occur simultaneously and the coprecipitation of silver and tin oxide is reached by the hydrothermal method. The silver-tin oxide composite powders have mainly flake shape of about 0.3 μm in thickness and there exists homogeneous distribution of tin oxide and silver in the powder synthesized. Foundation item: Project(2001BA901A09)supported by the Key Program of Science and Technology Action of West China Development |
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| Keywords: | silver-tin oxide powder hydrothermal method flake structure coprecipitation |
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