人工晶体学报2011，Vol.40Issue(5)：1246-1251,6.
热解火焰法合成碳纳米管:催化剂与合成环境的影响
Pyrolysis Flame Synthesis of Carbon Nanotubes :Effects of Catalysts and Synthesis Environment
摘要
Abstract
Flame synthesis of carbon nanotubes (CNTs) is demonstrated via oxyacetylene pyrolysis flame. To study the effects of catalysts and synthesis environment on synthesis result, different kinds of catalysts were used at different synthesis environment in this work. The results indicated that categories of synthesis products are determined directly by catalyst particle size, different products have special needs for different synthesis temperature and CNTs synthesis is badly impeded by excessively high flame temperature. In conclusion, substrate-support catalysts Fe/Mo/Al2O3 are appropriate for catalytic synthesis of small-diameter single, double and triple-walled carbon nanotubes at 830 ℃ and anaerobic environment inside pyrolysis chamber, while in contrary Fe catalyst particles formed by pyrolysis attachment-polymerization of iron pentacarbonyl are appropriate for catalytic synthesis of big-diameter multi-walled carbon nanotubes with at 600 ℃ in the flame of V-type chamber.关键词
碳纳米管/热解火焰/颗粒尺寸/催化活性/合成温度/合成环境Key words
carbon nanotubes/ pyrolysis flame/ particle size/ catalytic activity/ synthesis temperature/ synthesis environment分类
化学化工引用本文复制引用
贾斌,孙保民,郭永红,袁媛,丁兆勇..热解火焰法合成碳纳米管:催化剂与合成环境的影响[J].人工晶体学报,2011,40(5):1246-1251,6.基金项目
中央高校基本科研业务费专项资金资助 （）
