| 氢等离子体电弧法Mg／TiO2复合纳米粒子的制备与表征 |
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| 引用本文： | 朱旭光,董星龙,黄昊,雷军鹏,孙舰鹏. 氢等离子体电弧法Mg／TiO2复合纳米粒子的制备与表征[J]. 纳米技术与精密工程, 2008, 6(3): 170-173 |
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| 作者姓名： | 朱旭光 董星龙 黄昊 雷军鹏 孙舰鹏 |
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| 作者单位： | 大连理工大学三束材料表面改性国家重点实验室,大连,116024;大连理工大学材料科学与工程学院,大连116024;大连理工大学纳米材料科学研究中心,大连,116024 |
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| 基金项目： | 国家自然科学基金 , 教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 采用氢等离子体电弧法，在H2＋Ar气氛下制备出Mg／TiO2复合纳米粒子．通过X射线衍射仪（XRD）、红外分析（FT—IR）、高分辨透射电镜（HRTEM）对纳米粒子的化学成分、晶体结构和表面形貌进行了分析，发现具有六方形晶体惯态的镁粒子通过表面包覆一层TiO2后形成了球形粒子；分析了其形成过程．热重分析（TGA—SDTA）结果表明，Mg／TiO2复合纳米粒子比纯Mg纳米粒子抗氧化温度提高30～40℃．
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| 关 键 词： | 纳米粒子 储氢合金 氢等离子体电弧法 TiO2 |
Preparation and Characterization of Mg/TiO2 Nanocomposite Particles by Hydrogen Plasma-Metal Reaction |
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| ZHU Xu-guang,DONG Xing-long,HUANG Hao,LEI Jun-peng,SUN Jian-peng. Preparation and Characterization of Mg/TiO2 Nanocomposite Particles by Hydrogen Plasma-Metal Reaction[J]. Nanotechnology and Precision Engineering, 2008, 6(3): 170-173 |
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| Authors: | ZHU Xu-guang DONG Xing-long HUANG Hao LEI Jun-peng SUN Jian-peng |
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| Affiliation: | ZHU Xu-guang, DONG Xing-long, HUANG Hao, LEI Jun-peng, SUN Jian-peng( 1.State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China; 2.School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China; 3.Center for Nano Materials and Science, Dalian University of Technology, Dalian 116024, China ) |
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| Abstract: | Mg/TiO2 nanoparticles were prepared by hydrogen plasma-metal reaction method in a mixture of 1-12 and Ar atmosphere.The master bulk to be evaporated was a compressed mixture of micro-sized Mg and TiO2 powders.The morphology, crystal structure and chemical composition of the prepared nanoparticles were investigated by X-ray diffraction （XRD） , Fourier transform infrared spectrometer （FT-IR） and high-resolution transmission electron microscopy （HRTEM） .The magnesium nanoparticles with hexagonal crystallographic habit are converted into spherical ones after coated by the titania layers. Thermogravimetric analysis and simultaneous difference thermal analysis （TGA-SDTA） indicate the oxidation temperature of Mg/TiO2 nanoparticles is increased by 30---40 ℃ higher than that of Mg nanoparticles. |
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| Keywords: | nanoparticles hydrogen storage materials hydrogen plasma-metal reaction titania |
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