Vacuum-assisted hard-templating impregnation fabrication of three-dimensional ordered mesoporous samarium oxide

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• 作者：Yunsheng Xia ; Yue Zhao ; Yuzhen Li ; Fengyun Hu ; Lan Zhang…
• 关键词：Vacuum ; assisted impregnation method ; Ordered mesoporous material ; Samarium oxide
• 刊名：Journal of Porous Materials
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：23
• 期：6
• 页码：1591-1595
• 全文大小：976 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Catalysis
  Characterization and Evaluation Materials
  Physical Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1573-4854
• 卷排序：23

文摘

Three-dimensional (3D) ordered mesoporous samarium oxides with cubic polycrystalline structure were fabricated by means of vacuum-assisted impregnation and mill impregnation route using ordered mesoporous SiO₂ (KIT-6) as the hard template with nitrate samarium as the metal source. The structure and morphology of the as-prepared materials were characterized by XRD, TEM and N₂ adsoption-desorption. It is found that the mesoporous Sm₂O₃ sample obtained by vacuum-assisted method have a higher surface area (184 m2 g−1) than that (142 m2 g−1) of mill impregnation and had a better 3D mesoprosity, which has potential applications in the catalytic reaction.