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Preparation and characterization of carbon nanotube@SiO2 core-shell nanoparticles

机译:碳纳米管@ SiO2核壳纳米粒子的制备与表征

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CNTs@SiO2 core-shell nanoparticles were synthesized via tetraethyl orthosilicate (TEOS) hydrolyzing and condensing on the CNTs' surface. The effect of reaction parameters, including temperature, time, ratio of the cationic surfactant cetyltrimethyl ammonium bromide (CTAB)/ CNTs, and TEOS/CNTs on the structure of nanoparticles was investigated. Results showed that the optimized temperature, time, ratio of CTAB/CNTs were 30 °C, 24 hours, and 1:2, respectively. The controlled thickness of SiO2 shell, ranging from 0 to 35 nm, can be obtained by controlling the ratio of TEOS/CNTs in the range of 0.1 mL/ to 1.0 mL / 0.1 g. The CNTs@SiO2 nanoparticles are promising candidate as the fillers for electronic packaging application.
机译:CNTs @ SiO2核壳纳米粒子是通过原硅酸四乙酯(TEOS)水解并缩合在CNTs表面上而合成的。研究了温度,时间,阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)/ CNT的比例以及TEOS / CNTs等反应参数对纳米颗粒结构的影响。结果表明,最佳温度,时间,CTAB / CNTs比分别为30°C,24小时和1:2。可以通过将TEOS / CNT的比例控制在0.1 mL /至1.0 mL / 0.1 g的范围内,来控制SiO2壳的厚度,范围为0至35 nm。 CNTs @ SiO2纳米颗粒有望作为电子包装应用的填料。

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