在离子液/水体系中超声合成MoO_3纳米棒及其表征(英文) |
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引用本文: | 蔺红桃,李红玲,陈小亚,杨敏,齐彦兴.在离子液/水体系中超声合成MoO_3纳米棒及其表征(英文)[J].分子催化,2010,24(2). |
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作者姓名: | 蔺红桃 李红玲 陈小亚 杨敏 齐彦兴 |
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作者单位: | 1. 中国科学院兰州化学物理研究所,精细石油化工中间体国家工程研究中心,甘肃,兰州,730000;中国科学院研究生院,北京,100049 2. 中国科学院兰州化学物理研究所,精细石油化工中间体国家工程研究中心,甘肃,兰州,730000 |
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摘 要: | 采用超声波的方法在离子液(1-丁基-3-甲基氯代咪唑盐离子液,BMIM]Cl)中合成了直径分布在80~150 nm的MoO3纳米棒.采用X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、场发射扫描电子显微镜(FESEM)、高分辨透射电子显微镜(HRTEM)和选区电子衍射(SAED)对所合成材料的微观结构和形貌进行了表征.此外,考察了反应时间、加入BMIM]Cl的量以及其它咪唑基离子液对产物的影响并提出了可能的反应机理.最后对在不同温度煅烧下所得的α-MoO的甲烷催化燃烧活性进行了表征.
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关 键 词: | 纳米材料 表征 催化剂 超声 |
Sonochemical Synthesis and Characterization of MoO3 Nanorods in Ionic Liquids/Water Systems |
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Abstract: | Hexagonal MoO3 nanorods with diameters of between 80~150 nm were synthesized in ionic liquids (1-butyl-3-methylimidazolium chloride,[BMIM]Cl/water solutions by ultrasonic method. The microstructure and morphology of the products were characterized by the techniques of X-ray powder diffraction(XRD),Fourier-transform spectrometer (FT-IR),field emission scanning electron microscope (FESEM),High-resolution transmission electron microscope (HRTEM) and selected area electron diffraction (SAED). The influences factors such as reaction duration,the amount of [BMIM]Cl and other imidazolium ionic liquids were investigated in detail. The reaction mechanism was also discussed. In addition,catalytic combustion of methane was investigated on α-MoO3 nanorods prepared by calcining the as-prepared products at different temperatures |
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Keywords: | MoO3 Nanomaterials Characterization Catalyst MoO3 Ultrasound |
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