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Al_2O_3担载Fe催化CVD法合成纳米洋葱状富勒烯 被引量:2

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摘要 以Fe/A1203作催化剂,采用化学气相沉积法在400℃下催化裂解乙炔合成了纳米碳材料,为了去除催化剂载体和残留的催化剂颗粒,进一步将产物在60℃下于36%的浓盐酸中回流48h,并通过扫描电子显微镜、高分辨透射电子显微镜和x射线衍射仪对产物进行了表征.结果表明:在400℃下合成了直径在15~50nm之间、石墨片层呈层状堆积结构的内包Fe3C的纳米洋葱状富勒烯、进一步将产物在1100℃下热处理2h,得到了具有完整清晰的石墨壳层结构的纳米洋葱状富勒烯.在此基础上,探讨了内包金属纳米洋葱状富勒烯的生长机制,认为此实验条件下内包金属纳米洋葱状富勒烯的生长遵循气.固生长机制.
出处 《科学通报》 EI CAS CSCD 北大核心 2008年第15期1780-1784,共5页 Chinese Science Bulletin
基金 国家自然科学基金资助项目(批准号:20471041 20676086 20673072)
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