| 碳源对MoO_3/Al_2O_3碳化过程的影响 |
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| 引用本文： | 朱全力,章秋霖,杨晓斌,柯东贤,陈启丰. 碳源对MoO_3/Al_2O_3碳化过程的影响[J]. 分子催化, 2010, 24(1) |
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| 作者姓名： | 朱全力 章秋霖 杨晓斌 柯东贤 陈启丰 |
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| 作者单位： | 1. 韩山师范学院,化学系,广东,潮州,521041
2. 潮州翔鹭钨业有限公司,广东,潮州,521000 |
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| 摘 要： | 利用几种常见的液态烃作为碳源对MoO3/Al2O3进行了程序升温碳化(TPC),通过在线质谱(MS)的跟踪分析以及对所得催化剂的XRD表征,研究了这些烃在TPC过程中对MoO3/Al2O3物相转变的影响以及这些烃在不断转化催化剂表面的化学行为.结果显示在不同温度范围内这些烃具有不同的碳化活性,对MoO3/Al2O3的完全碳化来说,正己烷表现出了最好的活性.TPC-MS的分析结果也见证了MoO3/Al2O3碳化时的中间物相及其对链烃的脱氢芳构化作用,这对于不同用途的钼基碳化物催化剂制备时合适碳源的选择极具参考意义.
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| 关 键 词： | 碳化钼 程序升温碳化（TPC） 质谱（MS） XRD |
Effect of carbon sources on the carburization of MoO_3/Al_2O_3 |
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| ZHU Quan-li,ZHANG Qiu-lin,YANG Xiao-bin,KE Dong-xian,CHEN Qi-feng. Effect of carbon sources on the carburization of MoO_3/Al_2O_3[J]. Journal of Molecular Catalysis (China), 2010, 24(1) |
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| Authors: | ZHU Quan-li ZHANG Qiu-lin YANG Xiao-bin KE Dong-xian CHEN Qi-feng |
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| Affiliation: | 1 Department of Hanshan Normal University Chaozhou 521041;China;2 Chaozhou Xianglu Tungsten Industry Co.;Ltd;Chaozhou 521000;China |
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| Abstract: | The temperature programmed carburization (TPC) of MoO3/Al2O3 was performed using liquid hydrocarbons as carbon sources. The effect of these hydrocarbons on the phase transformation of MoO3/Al2O3 during TPC and the catalysts of its intermediate phases to the reactions of these hydrocarbons were investigated using online mass pectrometer (MS). The results of X-ray diffraction (XRD) and TPC-MS showed that different hydrocarbons had different activities for the transformation of MoO3/Al2O3 within different temp... |
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| Keywords: | Molybdenum carbide TPC MS XRD |
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