| 氢氧化镁纳米棒的制备及热分解动力学研究 |
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| 引用本文： | 刘烨,景殿策,王宝和,吕晓明,云利娜. 氢氧化镁纳米棒的制备及热分解动力学研究[J]. 河南化工, 2008, 25(1): 25-27 |
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| 作者姓名： | 刘烨 景殿策 王宝和 吕晓明 云利娜 |
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| 作者单位： | 大连理工大学,化工学院,辽宁,大连,116012 |
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| 摘 要： | 以氯化镁和轻质氧化镁为原料，采用液相法制备出碱式氯化镁纳米棒；再以碱式氯化镁纳米棒为前驱物，经沉淀转化法合成出直径约100～150nm，长约3～5μm的氢氧化镁纳米棒。采用Romero方法，对非等温热重法得到的氢氧化镁纳米棒热分解动力学数据处理分析后，得出氢氧化镁纳米棒的热分解反应遵循随机成核和随后生长（F1）机理，表观活化能E=187kJ／mol，指前因子A=3．84×10^11。
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| 关 键 词： | 动力学 氢氧化镁纳米棒 热分解 热重分析 |
| 文章编号： | 1003-3467（2008）01-0025-03 |
| 收稿时间： | 2007-09-20 |
| 修稿时间： | 2007-09-20 |
Study on the Preparation and Thermal Decomposition Dynamics of Magnesium Hydroxide Nanorods |
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| LIU Ye,JING Dian-ce,WANG Bao-he,LV Xiao-ming,YUN Li-na. Study on the Preparation and Thermal Decomposition Dynamics of Magnesium Hydroxide Nanorods[J]. Henan Chemical Industry, 2008, 25(1): 25-27 |
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| Authors: | LIU Ye JING Dian-ce WANG Bao-he LV Xiao-ming YUN Li-na |
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| Affiliation: | LIU Ye , JING Dian- ce , WANG Bao- he , LV Xiao -ming , YUN Li- na (Institute of Chemical Engineering , Dalian University of Technology , Dalian 116012 , China) |
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| Abstract: | Basic magnesium chloride nanorods are prepared with MgCl2 and light MgO by liquid phase method,and then magnesium hydroxide nanorods with a diameter range of 100 -150 nm and average length of 3 -5μm are synthesized with basic magnesium chlorides nanorods as precursor by precipitate transformation method. Data of thermal decomposition dynamics of magnesium hydroxide nanorods are treated by Romero method, and the results showed that the reaction belong to random nucleation and sub sequent growth （ F 1 ） mechanism. The activation energy E is 1 8 7 kJ / mol and the pre - exponential A -3.84×10^11. |
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| Keywords: | kinetics magnesium hydroxide nanorods thermal decomposition thermal gravimetric analysis |
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