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材料工程  2013, Vol. 0 Issue (11): 38-42,49    DOI: 10.3969/j.issn.1001-4381.2013.11.007
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
正交设计优化制备高分散性纳米银粉研究
张小敏1, 张振忠1,2, 赵芳霞1, 丘泰1
1. 南京工业大学 材料科学与工程学院, 南京 210009;
2. 桂林矿产地质研究院 国家特种矿物材料工程技术研究中心, 广西 桂林 541004
Optimization for Synthesis of High Dispersion Nanosized Silver Powder by Orthogonal Design
ZHANG Xiao-min1, ZHANG Zhen-zhong1,2, ZHAO Fang-xia1, QIU Tai1
1. College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009, China;
2. National Special Mineral Materials Engineering Research Center, Guilin Research Institute of Geology for Mineral Resources, Guilin 541004, Guangxi, China
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摘要 以AgNO3为银源,水合肼(N2H4·H2O)为还原剂,化学还原制备了高分散性纳米银粉。通过TEM,XRF和XRD分别对其形貌、组成和结构进行了表征。在单因素实验确定了溶液pH值、分散剂种类的基础上,结合正交实验考察了AgNO3浓度、分散剂用量及反应温度对纳米银粉的分散性的影响。研究结果表明,制备纳米银粉的优化条件:溶液pH值为8,AgNO3浓度为0.5mol·L-1,水合肼浓度为0.5mol·L-1,聚乙烯吡咯烷酮(PVP)为分散剂,PVP/AgNO3(质量比)为9:100,反应温度为30℃。
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关键词 纳米银粉高分散制备正交设计    
Abstract:The Hydrazine hydrate (N2H4·H2O) as the reducing agent, AgNO3 as the source of Ag, the silver nanopowders with good dispersity were prepared by liquid phase reduction method. The morphology, composition and structure of the particles were investigated by transmission electron microscopy (TEM), X-ray fluorescence (XRF), and X-Ray diffraction (XRD), respectively. Single factor experiments were taken by studying the pH value and the selection of dispersers. Using the orthogonal design method, the optimal conditions to prepare the silver nanopowders were obtained by studying the effects of following factors, such as the concentration of AgNO3, the doses of disperser and the temperature on the dispersion of the silver powder. The results show that under optimization conditions, the pure silver nanopowders with near-spherical shapes are synthesized using the AgNO3(0.5mol·L-1), N2H4·H2O (0.5mol·L-1), PVP as disperser, PVP/AgNO3 mass ratio of 9:100, pH=8 at 30℃.
Key wordssilver nanopowder    high dispersion    preparation    orthogonal design
收稿日期: 2012-09-08      出版日期: 2013-11-20
1:  TB383  
基金资助:高品质纳米功能粉体开发项目(桂科攻11107003-8);江苏省高校优势学科建设工程项目(苏政办发2011-6)
作者简介: 张小敏(1988-),女,硕士研究生,从事纳米金属材料方面研究工作,联系地址:江苏南京市新模范马路5号68分箱,南京工业大学材料科学与工程学院(210009),E-mail:zhangxiaominde@126.com
引用本文:   
张小敏, 张振忠, 赵芳霞, 丘泰. 正交设计优化制备高分散性纳米银粉研究[J]. 材料工程, 2013, 0(11): 38-42,49.
ZHANG Xiao-min, ZHANG Zhen-zhong, ZHAO Fang-xia, QIU Tai. Optimization for Synthesis of High Dispersion Nanosized Silver Powder by Orthogonal Design. Journal of Materials Engineering, 2013, 0(11): 38-42,49.
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http://jme.biam.ac.cn/CN/10.3969/j.issn.1001-4381.2013.11.007      或      http://jme.biam.ac.cn/CN/Y2013/V0/I11/38
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