| 复合反应时间对溶胶-凝胶法合成CNT/ZnO纳米复合体的影响 |
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| 作者姓名： | 余 俊 赵惠忠 张 寒 |
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| 作者单位： | 武汉科技大学耐火材料与高温陶瓷湖北省重点实验室 |
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| 基金项目： | 武汉科技大学青年科技骨干培育计划资助项目(2011XZ001) |
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| 摘 要： | 采用溶胶-凝胶法制备CNT/ZnO纳米复合体,通过XRD、SEM及EDS分析等对复合体进行表征,研究ZnO纳米颗粒在CNTs表面的生长过程,并就复合反应时间对CNT/ZnO纳米复合体形成的影响进行探讨。结果显示,负载于CNTs表面的ZnO纳米颗粒为六方纤锌矿结构;当复合反应时间不超过2.5h时,ZnO纳米颗粒在CNTs表面上的负载量随复合反应时间延长而递增,而当复合反应时间超过2.5h后,ZnO颗粒在CNTs表面上的负载量不再增加且颗粒间出现严重团聚。
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| 关 键 词： | 氧化锌 碳纳米管 溶胶-凝胶 复合材料 |
| 收稿时间： | 2012/3/20 0:00:00 |
Effect of reaction time on CNT/ZnO nanocomposite prepared by sol-gel method |
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| Authors: | Yu Jun Zhao Huizhong and Zhang Han |
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| Institution: | (Hubei Refractory and High-Temperature Ceramics Key Laboratory,Wuhan University of Science and Technology,Wuhan 430081,China) |
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| Abstract: | CNT/ZnO nanocomposite was prepared by the sol-gel method, and the effect of complex reaction time on the structure and morphology of CNT/ZnO nanocomposite was studied by X-ray diffraction, field emission scanning electron microscope and energy disperse spectroscopy. The results show that ZnO nanoparticles attached to CNTs surface is wurtzite structure and its number increases with the increase in complex reaction time. However, the number of ZnO particles ceases to grow due to saturation and the agglomeration of ZnO nanoparticles becomes serious when the complex reaction time is longer than 2.5h. |
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| Keywords: | ZnO CNT sol-gel composite |
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