| 银粒子浓度、粒度对催化硝基化合物的影响 |
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| 引用本文： | 庄 严,郑军伟,黄红缨,周全法.银粒子浓度、粒度对催化硝基化合物的影响[J].稀有金属材料与工程,2011,40(6):1029-1032. |
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| 作者姓名： | 庄 严 郑军伟 黄红缨 周全法 |
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| 作者单位： | 1. 江苏省贵金属深加工技术及其应用重点建设实验室,江苏,常州,213001
2. 苏州大学,江苏,苏州,215006 |
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| 基金项目： | 国家科技支撑项目（2008BAC46B04） |
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| 摘 要： | 采用银纳米粒子作催化剂,研究其对催化硝基化合物反应速率的影响,结果表明,纳米银粒子在室温下可极大地加速对硝基化合物的还原过程,带正电荷的硝基化合物比带负电荷的硝基化合物具有更高的催化反应速率;催化剂银粒子越多,反应速率越大,但因受纳米粒子本身性质的制约,数量不能无限大;催化剂银粒子粒度越小,反应速率越大。
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| 关 键 词： | 银纳米粒子 催化反应 对硝基苯酚 对硝基苯胺 |
| 收稿时间： | 2010/6/21 0:00:00 |
Effect of Concentration and Particle-Size of Silver Nanoparticles on the Catalytic Nitro-Compound |
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| Zhuang Yan,Zheng Junwei,Huang Hongying and Zhou Quanfa.Effect of Concentration and Particle-Size of Silver Nanoparticles on the Catalytic Nitro-Compound[J].Rare Metal Materials and Engineering,2011,40(6):1029-1032. |
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| Authors: | Zhuang Yan Zheng Junwei Huang Hongying and Zhou Quanfa |
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| Affiliation: | Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou 213001, China;Suzhou University, Suzhou 215006, China;Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou 213001, China;Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou 213001, China |
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| Abstract: | Ag nanoparticles were employed as catalyst and their effect on the reaction rate of the nitro-compound were investigated. Results show that Ag nanoparticles can greatly accelerate the reduction of nitro-compound at room temperature, and the nitro-compound with positive charges has higher catalytic reaction rate than that with negative charges. More Ag nanoparticles lead to higher reaction rate; however, the amount should be limited due to the properties of the nanoparticles. The bigger the Ag nanoparticle size is, the higher the reaction rate is. |
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| Keywords: | silver nanoparticles catalytic reduction PNP PNA |
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