Having it both ways: delicate hierarchical structure and robust mechanical stability on micro/nanomaterials with mesoporous silica coating

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• 作者：Zhi-Min Cui ; Jing Hao ; Chang-Yan Cao ; Weiguo Song
• 关键词：Inorganic compounds ; Nanostructures ; Catalytic properties ; Mesoporous silica
• 刊名：Journal of Porous Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：24
• 期：1
• 页码：103-108
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Catalysis; Characterization and Evaluation of Materials; Physical Chemistry;
• 出版者：Springer US
• ISSN：1573-4854
• 卷排序：24

文摘

Mesoporous silica (meso-SiO₂) was coated on the micro/nanomaterials with hierarchical structure such as flowerlike Fe₂O₃, flowerlike MgO, SnO₂ nanospheres, Co₃O₄ nanosheets and nanowires from a simple solution method. The structure of the nanomaterials and the silica coating before and after stirring in solution were characterizated by SEM and TEM. The results show that meso-SiO₂ coating was an ideal method to enhance the structural stability of fragile nanomaterials. The catalysis stability of flowerlike MgO was also enhanced by the meso-SiO₂ coating.