Additive effect of phosphoric acid on phosphorus-​containing mesoporous silica film formation
Additive effect of phosphoric acid on phosphorus-​containing mesoporous silica film formation
复制标题
磷酸对磷的加和作用
DOI：
10.1016/j.matlet.2015.11.070
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发表时间：
2016
影响因子：
3
通讯作者：
Masami Nishikawa
中科院分区：
文献类型：
--
作者：
Motohiro Tagaya;Kouhei Kobayashi;Masami Nishikawa
采用两种不同的工艺，在溶胶-凝胶型介孔形成前后分别加入磷酸，成功地合成了透明的含磷介孔二氧化硅薄膜。在X射线衍射图中，成膜前添加的薄膜具有高度有序的孔道结构，六方结构平行于衬底表面，而成膜后制备的薄膜具有较大的蠕虫状结构。因此，在介孔形成之前和之后，通过磷酸添加工艺分别制备了高度有序和无序的纳米结构，分别意味着二氧化硅骨架内的掺杂和二氧化硅介孔外的复合材料。
Transparent phosphorous-containing mesoporous silica films were successfully synthesized by two different processes using the phosphoric acid addition before and after the sol–gel based mesopore formation. In the X-ray diffraction patterns, the films prepared by the addition before the formation exhibited highly-ordered pore channels with a hexagonal structure parallel to a substrate surface, while those after the formation have the larger pores with worm-like structures. Therefore, the highly- and randomly-ordered nanostructures were prepared by the phosphoric acid additive processes before and after the mesopore formation, suggesting the doping inside the silica frameworks and the composite outside the silica mesopores, respectively.