| 微波辐射合成纳米Ni粉及其催化性能研究 |
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| 引用本文： | 祁磊,张小娟.微波辐射合成纳米Ni粉及其催化性能研究[J].金陵科技学院学报,2011,27(2). |
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| 作者姓名： | 祁磊 张小娟 |
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| 作者单位： | 金陵科技学院材料工程学院,江苏南京,211169 |
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| 基金项目： | 江苏省高校自然科学基金(10kjd430008) |
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| 摘 要： | 采用微波协助加热的联氨还原工艺快速合成了纳米Ni粉,并利用X-射线粉末衍射仪(XRD)、透射电子显微镜(TEM)、比表面仪(BET)等测试方法对其结构、形貌和比表面积进行了表征,并用差热分析法(DTA)研究了纳米Ni粉对高氯酸铵(AP)热分解的催化效果。结果表明,微波合成工艺法不仅速度快、反应条件简单、重现性好,而且所得的纳米Ni粉结晶好、分散性好,比表面积大。当其质量分数5%时,可使AP的高温分解峰温度降低了99.25°C,表观分解热增加了960 J/g,表现出对AP热分解具有显著的催化性能,明显优于传统水浴加热法所制得的纳米Ni粉催化剂。
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| 关 键 词： | 微波合成 纳米Ni粉 高氯酸铵 催化 |
The Microwave Synthesis of Nickel Nanocrystals and their Catalytic Properties |
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| QI Lei,ZHANG Xiao-juan.The Microwave Synthesis of Nickel Nanocrystals and their Catalytic Properties[J].Journal of Jinling Institute of Technology,2011,27(2). |
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| Authors: | QI Lei ZHANG Xiao-juan |
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| Institution: | QI Lei,ZHANG Xiao-juan(Jingling Institute of Technology,Nanjing 211169,China) |
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| Abstract: | Nickel nanocrystals are prepared by microwave-assisted heating hydrazine reduction in ethylene glycol.The obtained products are characterized by powder X-ray diffraction(XRD),transmission electron microscopy(TEM),and Brunnauer-Emmet-Teller(BET).It is found that nickel nanocrystals are spherical with average diameter of 100 nm.The BET surface areas of nickel are 88.78 m2/g.Moreover,their catalytic activities for the thermal decomposition of Ammonium Perchlorate(AP) are measured by differential thermal analys... |
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| Keywords: | microwave synthesis Ni nanocrystals Ammonium Perchlorate catalysis |
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