| 催化剂焙烧温度对热解火焰法合成碳纳米管的影响 |
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| 引用本文： | 孙保民,袁媛,郭永红,贾斌,王阳.催化剂焙烧温度对热解火焰法合成碳纳米管的影响[J].人工晶体学报,2012,41(4):900-904,915. |
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| 作者姓名： | 孙保民 袁媛 郭永红 贾斌 王阳 |
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| 作者单位： | 华北电力大学电站设备状态监测与控制教育部重点实验室,北京,102206 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 为了探讨在制备Fe/Mo/Al2O3载体载入式催化剂过程中的焙烧温度对实验产物的影响,在热解火焰法中,以CO为碳源,设计了6组实验工况,对不同焙烧温度的合成产物碳纳米管进行对比分析,实验产物的形貌与特征用扫描电镜和拉曼光谱表征.分析表明,在本组实验条件下,催化剂焙烧温度为800～1000℃时,可以使催化剂颗粒尺寸更小,分散性更好,催化活性更高,实验合成的碳纳米管以多壁碳纳米管为主,产量较多,质量较佳,焙烧温度为900 ℃附近时,合成了高质量的单壁碳纳米管.
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| 关 键 词： | 碳纳米管 热解火焰 催化剂 焙烧温度 |
Influence of Catalyst Calcination Temperature on Flame Pyrolysis Synthesis of Carbon Nanotubes |
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| SUN Bao-min
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YUAN Yuan
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GUO Yong-hong
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JIA Bin
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WANG Yang.Influence of Catalyst Calcination Temperature on Flame Pyrolysis Synthesis of Carbon Nanotubes[J].Journal of Synthetic Crystals,2012,41(4):900-904,915. |
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| Authors: | SUN Bao-min YUAN Yuan GUO Yong-hong JIA Bin WANG Yang |
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| Institution: | (Key Laboratory of Condition Monitoring and Control for Power Plant Equipment,Ministry of Education, North China Electric Power University,Beijing 102206,China) |
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| Abstract: | In flame pyrolysis synthesis,carbon nanotubes were obtained using substrate-supported catalyst Fe/Mo/Al2O3 and CO as carbon feedstock.To study the influence of calcination temperatures in the procedure of catalyst,six experimental conditions were designed.The morphology and microscopic structure of samples were characterized by scanning electron microscopy and Raman spectrometer.Analysis shows,under this experimental conditions,with the calcination temperature being about 800-1000 ℃,carbon nanotubes samples have a better quality and yield.When the catalysts were baked at about 900 ℃,single-wall carbon nanotubes of high quality were synthesized. |
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| Keywords: | carbon nanotubes flame pyrolysis catalyst calcination temperature |
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