| 真空辅助硬模板法制备三维有序介孔氧化钕 |
| Vacuum-Assisted Impregnation Hard-Templating Fabrication of 3D Ordered Mesoporous Neodymium Oxide |
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| 摘要: 以介孔氧化硅KIT-6为硬模板，硝酸钕为金属源，分别在搅拌条件和真空条件下制备具有三维介孔结构的立方多晶氧化钕。采用XRD、TEM和氮气吸附-脱附技术对所得样品进行表征。结果表明，在真空辅助条件下制备所得的氧化钕较在搅拌条件下制备得到的氧化钕具有更规则的三维有序介孔结构，两者的比表面积分别为117和84 m2·g-1。 |
| 关键词: 真空辅助浸渍 硬模板法 有序介孔材料 氧化钕 |
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| Abstract: Mesoporous neodymium oxides with ordered three-dimensional (3D) cubic polycrystalline structure were fabricated through vacuum-assisted impregnation and mill impregnation route using ordered mesoporous SiO2 (KIT-6) as the hard template, nitrate neodymium as metal source. The as-prepared materials were characterized by XRD, TEM and N2 adsorption-desorption. It was found that the mesoporous Nd2O3 sample obtained by vacuum-assisted method had a higher surface area (117 m2·g-1) than that (84 m2·g-1) of mill impregnation and had a better 3D mesoprosity. |
| Keywords: vacuum-assisted impregnation method hard-templating ordered mesoporous material neodymium oxide |
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| 摘要点击次数: 1918 |
| 全文下载次数: 1941 |
| 肖振林,夏云生,曲 蛟.真空辅助硬模板法制备三维有序介孔氧化钕[J].无机化学学报,2011,27(1):92-94. |
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