摘要
以酚醛树脂为原料,硝酸铁为催化剂,通过催化裂解酚醛树脂的方法制备了碳纳米管。研究了温度、裂解工艺及压力等对碳纳米管的合成过程的影响,并采用X射线衍射(XRD)、场发射扫描电子显微镜(FE-SEM)对所合成的碳纳米管进行了表征。结果表明:1)硝酸铁可在600~800℃下催化酚醛树脂并原位生成大量的碳纳米管,其直径约为40~100mm,长度可达几十微米;2)降低升温速率或增加压力均可显著提高碳纳米管的产率和长径比。
引文
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